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Amkor

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FY2012 Annual Report · Amkor
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2012 Annual Report
2012 Annual Report

E n a b l i n g   a   M i c r o e l e c t r o n i c   W o r l d®

www.amkor.com

www.amkor.com

Amkor Technology … 
Providing Solutions for a Connected World

Amkor is one of the world’s leading providers of 
outsourced semiconductor packaging and test services. 
Founded in 1968, we pioneered the outsourcing of 
semiconductor packaging and test services, and today 
we are a strategic design and manufacturing partner for 
many of the world’s leading semiconductor companies 
and electronics original equipment manufacturers. 
By capitalizing on strong outsourcing trends and 
consistently meeting customer needs, we have enjoyed 
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We are a leader in developing and commercializing 
advanced semiconductor packaging and test solutions. 
Creating successful interconnect solutions for 
advanced semiconductor devices often poses unique 
thermal, electrical and mechanical design criteria, and 
we employ a large number of engineers to solve these 
challenges. We produce hundreds of package types 
which encompass more than 1,000 unique products, 
representing one of the broadest package offerings 
in the semiconductor industry. This wide variety of 
package offerings is necessary to meet the diverse 
needs of our customers for the optimal combination of 
performance, size and cost.

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operational footprint. Our operations comprise more 
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world’s important electronics manufacturing regions.

Packaging and test are integral steps in the process 
of manufacturing semiconductor devices. The 
semiconductor manufacturing process begins with 
the fabrication of individual transistors, or multiple 
transistors and other electronic elements combined 
into an integrated circuit (generally known as a “chip” 
or “die”), onto semiconductor material such as a silicon 
wafer. Each chip on the wafer is probe tested. The good 
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into individual die. Each good die is then assembled 
into a package that typically encapsulates the die for 
protection and creates the electrical connections used 
to connect the package to a printed circuit board, 
module or other part of the electronic device.

In some packages, chips are attached to a substrate 
(cid:82)(cid:85)(cid:3)(cid:79)(cid:72)(cid:68)(cid:71)(cid:73)(cid:85)(cid:68)(cid:80)(cid:72)(cid:3)(cid:70)(cid:68)(cid:85)(cid:85)(cid:76)(cid:72)(cid:85)(cid:3)(cid:87)(cid:75)(cid:85)(cid:82)(cid:88)(cid:74)(cid:75)(cid:3)(cid:90)(cid:76)(cid:85)(cid:72)(cid:69)(cid:82)(cid:81)(cid:71)(cid:76)(cid:81)(cid:74)(cid:3)(cid:82)(cid:85)(cid:3)(cid:193)(cid:76)(cid:83)(cid:3)
chip interconnects and then encased in a protective 
material. Or, for a wafer-level package, the electrical 
interconnections are created directly on the surface of 
the die (while the wafer is still intact) so that the chip 
may be attached directly to other parts of an electronic 
device without a substrate or leadframe. The packages 
are then tested using sophisticated equipment to 
ensure that each packaged chip meets its design and 
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If you look inside a microelectronic product you won’t 
see Amkor’s name on the actual packages, but you will 
see the names of our customers – more than 200 of 
the world’s leading semiconductor suppliers.

Board of Directors

James J. Kim

Executive Chairman

Kenneth T. Joyce

Roger A. Carolin 1, 2, 3

Venture Partner

SCP Partners

President and Chief Executive Officer

Winston J. Churchill 2, 3

Chair: Nominating and

Governance Committee

Chair: Compensation Committee

Managing General Partner,

SCP Partners and Chairman, CIP

Capital Management, Inc.

John T. Kim

Director

Robert R. Morse 1, 2

Chairman and Chief Executive

Officer, PMC Partners

John F. Osborne 1

Director

James W. Zug  1, 3

Chair: Audit Committee

Retired Managing Director 

PricewaterhouseCoopers LLP

1 Member Audit Committee

2 Member Compensation Committee  

3 Member Nominating & Governance

Committee

Corporate Information

Corporate Management

Corporate Headquarters

Kenneth T. Joyce

President and Chief Executive Officer

JooHo Kim

President, Amkor Technology

Korea and Executive Vice President

Corporate Worldwide Manufacturing 

Operations

Michael J. Lamble

Executive Vice President

Global Sales and Marketing

Joanne Solomon

Executive Vice President and

Chief Financial Officer

Gil C. Tily

Executive Vice President,

Chief Administrative Officer,

General Counsel and 

Corporate Secretary

1900 South Price Road

Chandler, AZ 85286

Phone: 480-821-5000

Stock Trading

Amkor Technology, Inc.’s 

common stock is traded on 

the NASDAQ Stock Market 

under the symbol AMKR

Transfer Agent and Registrar

Computershare Trust Co. N.A.

First Class, Registered & Certified

P.O. Box 43078

Providence, RI  02940-3078

Overnight Courier:

250 Royall Street

Canton, MA  02021

Phone: 877-498-8861

Fax: 781-575-3602

International Shareholders:

Phone: 781-575-2879

Independent Auditors

PricewaterhouseCoopers LLP

1850 North Central Avenue, Suite 700

Phoenix, AZ 85004

Phone: 602-364-8000

A copy of the company’s Form 10-K, 

filed with the Securities and Exchange 

Commission is available upon written 

request to:

Investor Relations

Amkor Technology, Inc.

1900 South Price Road

Chandler, AZ 85286

© 2013, Amkor Technology Incorporated. All Rights Reserved. Amkor Technology, the Amkor Technology logo, the phrase Enabling a 

Microelectronic World, ChipArray, FusionQuad, MicroLeadFrame and TMV are registered trademarks of Amkor Technology, Inc. 

Please visit our website: www.amkor.com

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
For the Fiscal Year Ended December 31, 2012 

Commission File Number 000-29472

Amkor Technology, Inc.

(Exact name of registrant as specified in its charter)

Delaware
(State of incorporation)

23-1722724
(I.R.S. Employer
Identification Number)

1900 South Price Road
Chandler, AZ 85286
(480) 821-5000
(Address of principal executive offices and zip code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class
Common Stock, $0.001 par value

Name of Each Exchange on Which Registered
The NASDAQ Global Select Market

Securities registered pursuant to Section 12(g) of the Act:
None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes 

     No 

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes 

     No 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange 
Act of 1934, as amended, during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), 
and (2) has been subject to such filing requirements for the past 90 days.  Yes 

     No 

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive 
Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter 
period that the registrant was required to submit and post such files).  Yes 

     No 

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be 
contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this 
Form 10-K or any amendment to this Form 10-K.  

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting 
company.  See  the  definitions  of  “large  accelerated  filer,”  “accelerated  filer”  and  “smaller  reporting  company”  in  Rule  12b-2  of  the 
Exchange Act. (Check one):

Large accelerated filer 

Accelerated filer 

Non-accelerated filer 

Smaller reporting company 

(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes 

     No 

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 2012, 
based upon the closing price of the common stock as reported by the NASDAQ Global Select Market on that date, was approximately 
$356.5 million.

The  number  of  shares  outstanding  of  each  of  the  issuer’s  classes  of  common  equity,  as  of  January 25,  2013,  was  as  follows: 
153,210,566 shares of Common Stock, $0.001 par value.

DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the registrant’s Proxy Statement relating to its 2013 Annual Meeting of Stockholders, to be filed subsequently, are incorporated 
by reference into Part III of this Report where indicated.

TABLE OF CONTENTS

PART I

Item 1.

Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Item 1A.

Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Item 1B.

Unresolved Staff Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Item 2.

Item 3.

Item 4.

Item 5.

Item 6.
Item 7.

Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Legal Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Submission of Matters to a Vote of Security Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PART II
Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of 

Equity Securities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selected Consolidated Financial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Management’s Discussion and Analysis of Financial Condition and Results of Operations . . . . . . . .

Item 7A.

Quantitative and Qualitative Disclosures About Market Risk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Item 8.

Item 9.

Financial Statements and Supplementary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure . . . . . . . .

Item 9A.

Controls and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

2

16

31

31

32

32

32

35
37

52

54

99

99

Item 9B.

Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100

PART III

Item 10.

Item 11.

Item 12.

Item 13.

Item 14.

Directors, Executive Officers and Corporate Governance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Executive Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder 

Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Certain Relationships and Related Transactions and Director Independence . . . . . . . . . . . . . . . . . . . .

Principal Accountant Fees and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100

100

101

101

101

Item 15.

Exhibits and Financial Statement Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

101

PART IV

All references in this Annual Report on Form 10-K to “Amkor,” “we,” “us,” “our” or the “company” are to Amkor Technology, 
Inc. and its subsidiaries.  We refer to the Republic of Korea, which is also commonly known as South Korea, as “Korea”.  
All references to "J-Devices" and "Toshiba" are to J-Devices Corporation and Toshiba Corporation, respectively.  Amounts 
are  in  Korean  won,  and  amounts  preceded  by  ¥  are  in  Japanese  yen.   Amkor®, Amkor  Technology®, 
preceded  by 
ChipArray®, FlipStack®, FusionQuad®, MicroLeadFrame® and TMV® are registered trademarks of Amkor Technology, Inc.  
All other trademarks appearing herein are held by their respective owners.  Subsequent use of the above registered trademarks 
in this report may occur without the respective superscript symbol (®) in order to facilitate the readability of the report and 
are not a waiver of any rights that may be associated with the relevant trademarks.

1

Item 1. 

Business

DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

PART I

This business section contains forward-looking statements.  In some cases, you can identify forward-looking statements by 
terminology  such  as  “may,”  “will,”  “should,”  “expects,”  “plans,”  “anticipates,”  “believes,”  “estimates,”  “predicts,” 
“potential,” “continue,” “intend” or the negative of these terms or other comparable terminology.  Because such statements 
include risks and uncertainties, actual results may differ materially from those anticipated in such forward-looking statements.  
In evaluating these statements, you should specifically consider various factors, including the risks outlined in Part I, Item 1A 
of this Annual Report on Form 10-K.  These factors may cause our actual results to differ materially from any forward-
looking statement.

OVERVIEW

Amkor is one of the world’s leading providers of outsourced semiconductor packaging (sometimes referred to as assembly) 
and test services.  Amkor pioneered the outsourcing of semiconductor packaging and test services through a predecessor 
corporation in 1968 and over the years we have built a leading position by:

•  Designing and developing new packaging and test technologies;

•  Offering a broad portfolio of packaging and test technologies and services;

•  Cultivating  long-standing  relationships  with  our  customers,  which  include  many  of  the  world’s  leading 
semiconductor companies, and collaborating with original equipment manufacturers (“OEMs”) and equipment 
and material suppliers;

•  Developing a cost competitive cost structure with disciplined capital investment and building expertise in high-

volume manufacturing processes and

•  Having a diversified operational scope with research and development, engineering and production capabilities at 

various facilities throughout China, Japan, Korea, the Philippines, Taiwan and the United States (“U.S.”).

Packaging  and  test  are  integral  steps  in  the  process  of  manufacturing  semiconductor  devices.    The  semiconductor 
manufacturing process begins with the fabrication of individual transistors, or multiple transistors and other electronic 
elements combined into an integrated circuit (generally known as a “chip” or “die”), onto semiconductor material such as 
a silicon wafer.  Each chip on the wafer is probe tested.  The good chips are identified and the wafer is then separated into 
individual die.  Each good die is then assembled into a package that typically encapsulates the die for protection and creates 
the electrical connections used to connect the package to a printed circuit board, module or other part of the electronic 
device.  In some packages, chips are attached to a substrate or leadframe carrier through wirebonding or flip chip interconnects 
and then encased in a protective material.  Or, for a wafer-level package, the electrical interconnections are created directly 
on the surface of the die (while the wafer is still intact) so that the chip may be attached directly to other parts of an electronic 
device without a substrate or leadframe.  The packages are then tested using sophisticated equipment to ensure that each 
packaged chip meets its design and performance specifications.  The test services we offer include probe testing and final 
testing.

Our packaging services are designed to meet application and chip specific requirements including the type of interconnect 
technology employed; size; thickness and electrical, mechanical and thermal performance.  We are able to provide turnkey 
packaging and test services including semiconductor wafer bump, wafer probe, wafer backgrind, package design, packaging, 
test and drop shipment services.

Our customers include, among others: Altera Corporation; Analog Devices, Inc.; Broadcom Corporation; Intel Corporation; 
LSI Corporation; Qualcomm Incorporated; Sony Corporation; STMicroelectronics N.V.; Texas Instruments Incorporated 
and Toshiba Corporation.  The outsourced semiconductor packaging and test market is very competitive.  We also compete 
with the internal semiconductor packaging and test capabilities of many of our customers.

2

AVAILABLE INFORMATION

Amkor files annual, quarterly and current reports, proxy statements and other information with the U.S. Securities and 
Exchange Commission (the “SEC”).  You may read and copy any document we file at the SEC’s Public Reference Room, 
100 F Street, NE, Washington, D.C. 20549.  Please call the SEC at 1-800-SEC-0330 for information on the Public Reference 
Room.   The  SEC  maintains  a  web  site  that  contains  annual,  quarterly  and  current  reports,  proxy  statements  and  other 
information that issuers (including Amkor) file electronically with the SEC.  The SEC’s web site is http://www.sec.gov.

Amkor’s web site is http://www.amkor.com.  Amkor makes available free of charge through its web site, our annual reports 
on Form 10-K; quarterly reports on Form 10-Q; current reports on Form 8-K; Forms 3, 4 and 5 filed on behalf of directors 
and executive officers and any amendments to those reports filed or furnished pursuant to the Securities Exchange Act of 
1934, as amended, as soon as reasonably practicable after such material is electronically filed with, or furnished to, the 
SEC.  We also make available, free of charge, through our web site, our Corporate Governance Guidelines, the charters of 
the Audit Committee, Nominating and Governance Committee and Compensation Committee of our Board of Directors, 
our Code of Business Conduct, our Code of Ethics for Directors and other information and materials.  The information on 
Amkor’s web site is not incorporated by reference into this report.

INDUSTRY BACKGROUND

Semiconductor devices are the essential building blocks used in most electronic products.  As electronic and semiconductor 
devices have evolved, several important trends have emerged that have fueled the growth of the overall semiconductor 
industry, as well as the market for outsourced semiconductor packaging and test services.  These trends include:

•  An increasing demand for mobile and internet-connected devices, including world-wide adoption of mobile “smart” 
phones and tablets that can access the web and provide multimedia capabilities.  The demand for digital video 
content  has  driven  a  range  of  higher  performance  internet  connected  home  and  mobile  consumer  electronics 
products including the rapidly growing smartphone and tablet categories.

• 

Increasing mobility and connectivity capabilities and growing digital content are driving demand for new broadband 
wired and wireless networking equipment.

•  The proliferation of semiconductor devices into well established end products such as automotive systems due to 
increased use of electronics for safety, navigation, fuel efficiency, emission reduction and entertainment systems.

•  An overall increase in the semiconductor content within electronic products in order to provide greater functionality 

and higher levels of performance.

Our business is impacted by market conditions in the semiconductor industry, which is cyclical by nature and impacted by 
broad economic factors, such as world-wide gross domestic product and consumer spending.  Historical trends indicate 
there has been a strong correlation between world-wide gross domestic product levels, consumer spending and semiconductor 
industry cycles.

Semiconductor companies outsource their packaging and test needs to contract service providers such as Amkor for the 
following reasons:

Contract service providers have developed expertise in advanced packaging and test technologies.

Semiconductor packaging and test technologies continue to become more sophisticated, complex and customized due to 
increasing demands for miniaturization, greater functionality and improved thermal and electrical performance.  This trend 
has  led  many  semiconductor  companies  and  OEMs  to  view  packaging  and  test  as  enabling  technologies  requiring 
sophisticated expertise and technological innovation.  Many of these companies are also relying on contract service providers 
of packaging and test services as key sources for new package designs and advanced interconnect technologies, thereby 
enabling them to reduce their internal research and development costs.

3

Contract service providers offer a cost effective solution in a highly cyclical, capital intensive industry.

The semiconductor industry is cyclical by nature and impacted by broad economic factors, such as changes in world-wide 
gross  domestic  product  and  consumer  spending.    Semiconductor  packaging  and  test  are  complex  processes  requiring 
substantial investment in specialized equipment, factories and human resources.  As a result of this cyclicality and the large 
investments required, manufacturing facilities must operate at consistently high levels of utilization to be cost effective.  
Shorter product life cycles, coupled with the need to update or replace packaging and test equipment to accommodate new 
package types, make it more difficult for integrated semiconductor companies to maintain cost effective utilization of their 
packaging and test assets throughout semiconductor industry cycles.  Contract service providers of packaging and test 
services, on the other hand, can typically use their assets to support a broad range of customers, potentially generating more 
efficient use of their production assets and a more cost effective solution.

Contract service providers can facilitate a more efficient supply chain and help shorten time-to-market for new products.

We believe that semiconductor companies, together with their customers, are seeking to shorten the time-to-market for their 
new products, and that having an effective supply chain is a critical factor in facilitating timely and successful product 
introductions.  Contract service providers of packaging and test services have the resources and expertise to timely develop 
their packaging and test capabilities and implement new packaging technology in volume.  For this reason, semiconductor 
companies and OEMs are leveraging capabilities of contract service providers of packaging and test services to deliver their 
new products to market more quickly.

The  availability  of  high  quality  packaging  and  test  services  from  contract  service  providers  allows  semiconductor 
manufacturers to focus their resources on semiconductor design and wafer fabrication.

As semiconductor process technology migrates to larger wafers and smaller feature sizes, the cost of building a state-of-
the-art wafer fabrication factory has risen significantly and can now be several billions of dollars.  The high cost of investing 
in next generation silicon technology and equipment is causing many semiconductor companies to adopt or maintain a 
“fabless” or “fab-lite” strategy to reduce or eliminate their investment in wafer fabrication and associated packaging and 
test  operations.     As  a  result,  these  companies  are  increasing  their  reliance  on  outsourced  providers  of  semiconductor 
manufacturing services, including packaging and test.  “Fabless” semiconductor companies do not have factories and focus 
exclusively on the semiconductor design process and outsource virtually every step of the manufacturing process.

COMPETITIVE STRENGTHS AND STRATEGY

We believe we are well-positioned in the outsourced packaging and test services market.  To build upon our industry position 
and to remain one of the preferred providers of semiconductor packaging and test services, we are pursuing the following 
strategies:

Leading Technology Innovator

We are a leader in developing advanced semiconductor packaging and test solutions.  We have designed and developed 
several state-of-the-art package formats and technologies including our Package-on-Package (“PoP”) platform with Through 
Mold Via (“TMV”) technology, FusionQuad, flip chip ball grid array, multi-chip modules with a silicon interposer placed 
between the module chips and substrate, copper pillar bumping and fine pitch copper pillar flip chip packaging technologies.  
In addition, we believe that as semiconductor technology continues to achieve smaller device geometries with higher levels 
of speed and performance, packages will increasingly require flip chip and three dimensional or “3D” interconnect solutions 
that stack multiple chips in a single package.  We have been investing in our technology leadership in electroplated wafer 
bumping, wafer-level processing and 3D packaging technologies.  We have also been a leader in developing environmentally 
friendly integrated circuit packaging, which involves the elimination of lead and certain other materials.

In the area of 3D packaging, we have been a market and technology leader in both stacked die, such as stacked chip scale 
packages and FlipStack, and stacked package technologies such as PoP and TMV.  The semiconductor industry is now in 
a period of 3D packaging development where Through Silicon Via (“TSV”) interconnect technology will be used to create 
3D integrated circuits.  We continue to invest in developing the key processes and package and test technologies required 
for our customers to deliver 3D solutions to market.  We are a leader in wafer thinning, micro-bumping and TSV-based flip 

4

chip stacking technologies, and we are leveraging our technology development relationships with key customers in diverse 
applications to develop and deploy new 3D packaging and test solutions with high density TSV interconnections.

We provide a complete range of test engineering services from test program development to full product characterization 
for radio frequency mixed signal, logic and memory devices.  We are a major provider of radio frequency test services and 
a leader in strip test, an innovative parallel test solution that offers customers lower cost, faster index time and improved 
yields.

We have approximately 400 employees engaged in research and development focusing on the design and development of 
new semiconductor packaging and test technologies.

Long-Standing Relationships and Collaboration with Prominent Semiconductor Companies

Our  customers  include  most  of  the  world’s  largest  semiconductor  companies  and  over  the  last  four  decades,  we  have 
developed long-standing relationships with many of these companies.  We believe that our production excellence has been 
a key factor in our success in attracting and retaining customers.  We work with our customers and our suppliers to develop 
proprietary process technologies to enhance our existing capabilities, reduce time-to-market, increase quality and lower our 
costs.

We believe that our focus on research and product development will enable us to enter new markets early, capture market 
share and promote the adoption of our new package designs as industry standards.  We collaborate with customers and 
leading OEMs to develop comprehensive packaging solutions that make it easier for next-generation semiconductors to be 
designed into next-generation end products.  By collaborating with leading semiconductor companies and OEM electronic 
companies, we gain access to technology roadmaps for next generation semiconductor designs and obtain the opportunity 
to develop new packages that satisfy their future requirements.

Broad Offering of Semiconductor Package Design, Packaging and Test Services

Creating successful interconnect solutions for advanced semiconductor devices often poses unique thermal, electrical and 
mechanical design challenges, and we employ a large number of engineers to solve these challenges.  We produce hundreds 
of package types which encompass more than 1,000 unique products, representing one of the broadest package offerings 
in the semiconductor industry.  This wide variety of packaging offerings is necessary to meet the diverse needs of our 
customers for the optimal combination of performance, size and cost attributes.  Our solutions enable our customers to focus 
on semiconductor design and wafer fabrication while utilizing Amkor as their turnkey design and manufacturing provider 
and, in many cases, their packaging technology innovator.

We also offer an extensive line of advanced probe and final test services for analog, digital, logic, mixed signal and radio 
frequency semiconductor devices.  We believe that the breadth of our design, packaging and test services is important to 
customers seeking to limit the number of their suppliers.

Geographically Diversified Operational Base

We have a broad and geographically diversified operational footprint.  Our operations comprise more than five million 
square feet of manufacturing space strategically located in five countries in many of the world’s important electronics 
manufacturing regions.  We believe that our scale and scope allow us to provide cost effective solutions to our customers 
by:

•  Offering capacity to absorb large orders and accommodate quick turn-around times;

•  Obtaining  favorable  pricing  on  materials  and  equipment,  where  possible,  by  using  our  purchasing  power  and 

leading industry position;

•  Qualifying production of customer devices at multiple manufacturing sites to mitigate the risks of supply disruptions 

and

• 

Providing capabilities and solutions for customer-specific requirements.

5

Competitive Cost Structure and Disciplined Capital Investment

There  has  been  a  continuous  push  throughout  the  entire  semiconductor  supply  chain  for  lower  cost  solutions,  and  a 
competitive  cost  structure  and  disciplined  capital  investment  decisions  are  key  factors  for  achieving  profitability  and 
generating cash flow.  Some of our cost control efforts have included: (1) increasing strip densities to drive higher throughput; 
(2)  migrating  from  capillary  underfill  to  molded  underfill;  (3) developing  thinner  and  shorter  gold  wire  solutions;  (4) 
migrating from gold wire to copper wire for certain wirebond packages; (5) reducing test cycle times and (6) increasing 
labor productivity.

We operate in a cyclical industry.  During an industry downturn we seek to reduce our costs and drive greater factory and 
administrative efficiencies.  Cost control efforts can include reducing labor costs by temporarily lowering compensation, 
reducing  employee  and  contractor  headcount,  shortening  work  weeks  and  obtaining  labor-related  foreign  government 
subsidies where available.

PACKAGING AND TEST SERVICES

The following table sets forth, for the periods indicated, the amount of packaging and test net sales and the percentage of 
such net sales:

Year Ended December 31,

2012

2011

2010

(In millions, except percentage of net sales)

Packaging services . . . . . . . . . . . $
Test services. . . . . . . . . . . . . . . .

Total net sales . . . . . . . . . . . . $

2,439

321

2,760

88.4% $

11.6%

100.0% $

2,493

283

2,776

89.8% $

10.2%

100.0% $

2,650

289

2,939

90.2%

9.8%

100.0%

Packaging Services

We offer a broad range of package formats and services to our customers.  The differentiating characteristics of package 
formats can include: (1) size and thickness, (2) number of electrical connections, (3) thermal, mechanical and electrical 
characteristics, (4) number of chips incorporated, (5) types of interconnect technologies employed and (6) integration of 
active and passive components.

Interconnect Technologies

Wirebond and flip chip are the two interconnect technologies used to connect the die to the package carrier.

Wirebond  Technology:  In  packages  that  employ  wirebond  interconnect  technology,  the  die  is  mounted  face  up  on  the 
substrate or leadframe and very fine gold or copper wires are attached from the perimeter of the die to the substrate or 
leadframe.  Wirebonding is generally considered to be the most cost-effective and flexible interconnect technology and is 
used to assemble the majority of semiconductor packages.

Flip Chip Technology:  In packages that employ flip chip interconnect technology, the interconnection between the die and 
substrate or leadframe is made through a conductive “bump” that is placed directly on the die surface utilizing a process 
called wafer bumping.  The bumped die is then “flipped over” and placed face down, with the bumps connecting directly 
to the substrate or leadframe.  Flip chip packages provide a higher density interconnection capability than wirebond packages 
as flip chip technology uses the entire surface area of the die, and sometimes the perimeter as well, instead of just the 
perimeter used by wirebond packages.  Flip chip technology also provides enhanced thermal and electrical performance, 
and enables smaller die and thinner, smaller form factors (or physical package dimensions).

Hybrid Technologies:  Certain 3D and system-in-package applications may contain both wirebond and flip chip interconnect 
technologies in a single package.  These structures are commonly referred to as FlipStack and are supported in both chip 
scale and ball grid array package types.

6

Package Carrier

Leadframe:  Leadframe packages utilize metal (typically copper) as the package carrier and typically place the electrical 
interconnect leads to the system board around the perimeter of the package.  Leadframe packages are used in virtually every 
electronic device and remain the most practical and cost-effective solution for many low to medium pin count applications.  
Traditional leadframe packages are typically not cost or form factor effective for pin counts above 200.  To address this 
limitation, Amkor developed FusionQuad, a leadframe package that integrates internal leads with perimeter leads to enable 
pin counts of up to 376.

Substrate:  Substrate packages utilize a laminate as the package carrier.  Laminate substrates are composed of multiple 
layers of epoxy resin, woven glass fibers and metal conductors.  These substrate packages have the electrical interconnects 
to the system board on the bottom of the package in the form of solder balls that are distributed across the bottom surface 
of the package (called a “ball grid array” format).  The chip is attached to the substrate through either wirebond or flip chip 
technologies.  Substrate packages were developed to facilitate the higher number of interconnections required by many 
advanced semiconductor devices.

Wafer-Level:  Wafer-level packages do not use a leadframe or substrate as the package carrier.  The interconnect bumping 
process is carried out on the entire wafer for all chips on the wafer.  The bumped wafer is subsequently singulated into 
individual chips (“diced”), and the wafer-level package is then attached directly to the system board.

Package Families

Chip Scale Packages:  Chip scale packages are substrate-based packages where the package size is not much larger than 
the chip itself, and which have very small form factors and fine ball or pillar pitches ("pitch" is the distance between adjacent 
balls or pillars).  The size advantage provided by chip scale packaging technologies has made this the package of choice 
for a wide variety of applications that require very small form factors such as wireless handsets and mobile consumer 
electronic devices.  For example, we have developed a fine pitch copper pillar flip chip packaging solution which creates 
interconnections at finer pad pitches using fine pitch copper pillar bumping and a packaging process to reduce the number 
of substrate layers and facilitate very thin packages.

Advances in packaging technology now allow the placement of two or more chips on top of each other within a single 
package.  This concept, known as 3D packaging, permits a higher level of semiconductor density and greater functionality. 
Some of our 3D chip scale packages include:

• 

• 

Stacked chip scale packages that contain two or more chips placed on top of each other and are ideal for chipset 
and memory applications and

PoP solutions using extremely thin chip scale packages that are stacked on top of each other, enabling the integration 
of logic and memory in a single small footprint package, as well as multiple memory applications.

Our chip scale package family also includes system-in-package modules which integrate two or more chips and passive 
device elements into a single package, thus enabling space and power efficiency, high performance and lower production 
costs.

Ball Grid Array Packages:  Ball grid array packages are large form factor substrate-based packages which are used where 
processing power and speed are needed, and small form factors are not required.  Ball grid array packages are used for 
networking, storage, gaming, computing and consumer applications.

Examples of ball grid array packages include:

• 

• 

Flip chip ball grid array packages that incorporate a face down bumped die onto a substrate using a ball grid array 
format and are increasingly being used with advanced silicon nodes that enable our customers to implement more 
powerful new applications and smaller devices and

Plastic ball grid array packages that use wirebond technology in applications requiring higher pin count than chip 
scale or leadframe packages, but typically have lower interconnect density than flip chip.

7

Leadframe Packages:  Leadframe packages place the electrical interconnects to the system board around the perimeter of 
the package.  Wirebond or flip chip technology is used to interconnect the chip to the leadframe package carrier.  Leadframe-
based packages are the most widely used package family in the semiconductor industry.

Traditional leadframe-based packages support a wide variety of device types and applications.  Two of our most popular 
traditional leadframe package types are small outline integrated circuit and quad flat package, commonly known as “dual” 
and “quad” products, respectively, based upon the number of sides from which the leads extend.  The traditional leadframe 
package family has evolved from “through hole design,” where the leads are plugged into holes on the circuit board to 
“surface mount design,” where the leads are soldered to the surface of the circuit board.  We offer a wide range of lead 
counts and body sizes to satisfy variations in the size of customers’ semiconductor devices.

Through a process of continuous engineering and customization, we have designed several advanced leadframe package 
types that are thinner and smaller than traditional leadframe packages, and which have the ability to accommodate more 
leads on the perimeter of the package.  These advanced leadframe packages typically have superior thermal and electrical 
characteristics,  which  allow  them  to  dissipate  heat  generated  by  high-powered  semiconductor  devices  while  providing 
enhanced electrical connectivity.  We are developing increasingly smaller versions of these packages to keep pace with 
continually shrinking semiconductor device sizes and demand for miniaturization of portable electronic products.  One of 
our more successful advanced leadframe package offerings is the MicroLeadFrame family of quad flat no lead packages.

Micro-electro-mechanical systems (MEMS) are miniaturized mechanical and electro-mechanical sensors that can sense or 
manipulate the physical world.  Examples of MEMS devices include microphones, accelerometers and pressure sensors.  
MEMS are most typically created on silicon wafers but can also employ other substrate types as well.  MEMS devices often 
require an extra fabrication process where the device wafer is bonded to a second wafer which effectively encapsulates the 
MEMS structure.  This method leaves the device free to move within a vacuum or an inert gas atmosphere.  However, 
applications such as microphones and pressure sensors require the MEMS structure to remain unencapsulated, requiring 
innovative cavity style packages.  MEMS are an enabling technology rather than a semiconductor package platform, and 
they can be based on or use a leadframe package, a ball grid array package or a chip scale package.

Other Packaging Services

The category of "other packaging services" is primarily composed of wafer bumping services.  Wafer bumping is a preliminary 
step in the manufacture of both flip chip and wafer-level packages.  The wafer bumping process consists of preparing the 
wafer for bumping and forming or placing the bumps.  Preparation may include cleaning, removing insulating oxides, and 
providing a pad metallurgy that will protect the interconnections while making good mechanical and electrical connection 
between the bump and the substrate.

Test Services

Amkor provides a complete range of semiconductor testing services including wafer testing or probe, various types of final 
testing, strip testing and complete end-of-line test services up to and including final shipping.  We have testing operations 
in our facilities in China, Japan, Korea, the Philippines and Taiwan, and this geographical diversity enables fast feedback, 
streamlined  logistics  and  shorter  cycle  times.    We  also  offer  many  specialized  logistical  services  including  security 
certification and anti-counterfeit measures.  Substantially all of our test business is derived from testing packages that we 
assemble.

We test a variety of device types across all of our package families including radio frequency, analog and mixed signal, 
digital, power management, memory and various combinations such as application-specific integrated circuits, multi chip 
modules,  system-in-package,  and  stacked  chips.    Testing  services  vary  depending  upon  the  complexity  of  the  device.  
Specialized solutions are required for packages that also process non-electric stimuli, including sensors, accelerometers, 
gyrometers and various types of micro-electro-mechanical devices.

Test Development Services

We offer a full range of test software, hardware, integration and product engineering services, and we support a range of 
business models and test capabilities.  Some customers develop their test solutions and provide them to us, while other 

8

customers need our engineering resources.  We support a variety of co-development and collaboration models.  Our test 
development centers located in China, Korea, the Philippines and the U.S. are in close proximity to many of our customers' 
design centers.

Wafer Test Services

Wafer test, also referred to as wafer probe, is performed after wafer fabrication or wafer bumping to screen out defective 
devices prior to packaging.  We offer a range of wafer test coverage that can be tailored based on the cost and complexity 
of the die, the package and the product.  These services range from coarse level screening for major defects all the way up 
to probing at high digital speeds and can include full radio frequency transmit and receive and testing at multiple temperatures.  
Wafer testing can also involve a range of wafer mapping and inspection operations.

Final Test Services

After the packaging process, final test is performed to ensure that the packaged device meets the customer’s requirements.  
Final test spans a range of rigor and complexity depending on the device and end market application.  More rigorous types 
of final test include testing multiple times under different electrical and temperature conditions and before and after device 
reliability stresses, such as burn-in.  In addition to electrical testing, specialized solutions are required for packages that 
also process non-electric stimuli.

The electrical tests are a mix of functional, structural and system-level tests depending on the customer’s requirements and 
cost  and  reliability  parameters.    The  electrical  test  equipment  we  use  includes  commercially  available  automated  test 
equipment,  customized  and  proprietary  system  level  test  equipment  and  innovative  types  of  low  cost  test  equipment 
developed by Amkor.

9

Principal End Markets

The following table lists the major end markets that use our products.  The table also lists some of our applications and our 
packages and test services used within these key end markets.

End Market

Applications

Communications

Handsets (Cell Phones, Feature 
Phones, Smart Phones)

Tablets
Wireless LAN
Handheld Devices

Consumer

Computing

Networking

Other

Gaming
Television
Set Top Boxes
Portable Media
Digital Cameras

Desk Top Computer
Laptop Computer
Notebook Computer
Netbook Computer
Hard Disk Drive
Computer Server
Printers
Other Peripherals

Servers
Routers
Switches

Automotive
Industrial

Amkor Packaging and
Test Services

Flip Chip Chip Scale Package
Flip Chip Stacked Chip Scale Package
Test Services
Fine Pitch Copper Pillar Flip Chip 

Chip Scale Package
Stacked Chip Scale Package
ChipArray Ball Grid Array
MicroLeadFrame
Wafer Bumping
Wafer Level Chip Scale Package

Flip Chip Ball Grid Array
Thin Quad Flat Pack
ChipArray Ball Grid Array
Test Services
MicroLeadFrame
Plastic Ball Grid Array

Thin Quad Flat Pack
ChipArray Ball Grid Array
MicroLeadFrame
Plastic Ball Grid Array
Test Services
Flip Chip Ball Grid Array
Small Outline Integrated Circuit

Flip Chip Ball Grid Array
Plastic Ball Grid Array
Wafer Bumping
Thin Quad Flat Pack
Test Services
ChipArray Ball Grid Array

Small Outline Integrated Circuit
Plastic Ball Grid Array
MicroLeadFrame
Thin Quad Flat Pack
Test Services
Quad Flat Pack

For packaging and test segment information, see Note 18 to our Consolidated Financial Statements in Part II, Item 8 of this 
Annual Report on Form 10-K.

RELATIONSHIP WITH J-DEVICES CORPORATION

In 2009, Amkor and Toshiba invested in J-Devices (formerly Nakaya Microdevices Corporation) and formed a joint venture 
to provide semiconductor packaging and test services in Japan.  Our original investment in J-Devices included a 30% equity 
interest and options to acquire additional equity interests, and in January 2013, we exercised our option to increase our 
ownership interest in J-Devices to 60%.  The transaction is expected to close in April 2013, subject to regulatory approval.

As part of the original transaction with Toshiba in 2009, J-Devices acquired certain assets and business, including technology 
development, of Toshiba's LSI semiconductor packaging business.  In December 2012, J-Devices acquired certain LSI 

10

packaging and test facilities and business of Fujitsu Semiconductor Limited.  J-Devices is now the largest independent 
semiconductor packaging and test company in Japan, with six factories located in Japan.

In January 2013, J-Devices signed a Memorandum of Understanding with Renesas Electronics Corporation for the possible 
acquisition of the semiconductor back-end production business of three facilities operated by Renesas and its wholly owned 
subsidiary,  Hokkai  Electronics  Co.,  Ltd.   The  transaction  is  subject  to  negotiation  of  definitive  agreements,  regulatory 
approvals and other customary closing conditions.

J-Devices is a separate business and is not integrated with our existing Japan-based businesses.  The governance provisions 
applicable to J-Devices restrict our ability, even after obtaining majority ownership, to cause J-Devices to take certain actions 
without the consent of the other investors.  Accordingly, we account for our investment in J-Devices using the equity method 
of accounting and will continue to account for J-Devices under the equity method of accounting after increasing our ownership 
interest as discussed above.

RESEARCH AND DEVELOPMENT

Our research efforts focus on developing new packaging solutions and test services, and improving the efficiency and 
capabilities of our existing production processes.  We believe that technology development is one of the keys to success in 
the semiconductor packaging and test industry.  By concentrating our research and development on our customers’ needs 
for innovative packages, increased performance and lower cost, we gain opportunities to enter markets early, capture market 
share and promote our new package offerings as industry standards.  In addition, we leverage our research and development 
by licensing our leading edge technology, such as MicroLeadFrame, Fine Pitch Copper Pillar Flip Chip, TMV, Lead Free 
Bumping and FusionQuad.

Our areas for research and development include:

• 

3D packaging;

•  Advanced flip chip packaging;

•  Advanced micro-electromechanical system packaging and testing;

•  Copper Pillar bumping and packaging;

•  Copper wire interconnects;

•  Engineering and characterization tools;

•  Laminate and leadframe packaging;

•  Manufacturing cost reductions;

• 

• 

Silicon Photonics;

Silver wirebond technology;

•  TMV technology;

•  TSV technology;

•  Wafer Level Fan Out technology and

•  Wafer level processing.

We have key development partners within our customer and supplier base.  We work with our partners and allocate our 
resources to develop applications that have promising potential for a healthy return on investment.

As of December 31, 2012, we had approximately 400 employees engaged in research and development activities.  In 2012, 
2011 and 2010, we spent $54.1 million, $50.4 million and $47.5 million, respectively, on research and development.

11

MARKETING AND SALES

Our marketing and sales offices are located throughout Asia, Europe and North America.  Our support personnel manage 
and promote our packaging and test services and provide key customer and technical support.

To provide comprehensive sales and customer service, we typically assign our customers a direct support team consisting 
of an account manager, technical program manager, test program manager and both field and factory customer support 
representatives.  We also support our largest multinational customers from multiple office locations to ensure that we are 
aligned with their global operational and business requirements.

Our direct support teams are further supported by an extended staff of product, process, quality and reliability engineers, 
as well as marketing and advertising specialists, information systems technicians and factory personnel.  Together, these 
direct and extended support teams deliver an array of services to our customers.  These services include:

•  Managing and coordinating ongoing manufacturing activity;

• 

Providing information and expert advice on our portfolio of packaging and test services and related trends;

•  Managing the start-up of specific packaging and test programs;

•  Working to improve our customers’ time-to-market;

• 

• 

Providing a continuous flow of information to our customers regarding products and programs in process;

Partnering with customers on design solutions;

•  Researching and assisting in the resolution of technical and logistical issues;

•  Aligning our technologies and research and development activities with the needs of our customers and OEMs;

• 

Providing guidance and solutions to customers in managing their supply chains;

•  Driving industry standards;

• 

Providing design and simulation services to ensure package reliability and

•  Collaborating with our customers on continuous quality improvement initiatives.

Further, we implement direct electronic links with our customers to:

•  Achieve near real time and automated communications of order fulfillment information, such as inventory control, 
production  schedules  and  engineering  data,  including  production  yields,  device  specifications  and  quality 
indices and

•  Connect our customers to our sales and marketing personnel world-wide and to our factories.

SEASONALITY

Our sales have generally been higher in the second half of the year than in the first half due to the effect of consumer buying 
patterns in the U.S., Europe and Asia.  In addition, semiconductor companies generally reduce their production during the 
holidays at the end of December which results in a decrease in units for packaging and test services during the first quarter.

12

CUSTOMERS

As of December 31, 2012, we had approximately 200 customers, including many of the largest semiconductor companies 
in the world.  The table below lists our top 25 customers in 2012 based on net sales:

Altera Corporation

Analog Devices, Inc. 

Atmel Corporation

Broadcom Corporation

Entropic Communications, Inc. 

Freescale Semiconductor, Ltd.

GLOBALFOUNDRIES Inc.

Infineon Technologies AG

Intel Corporation

International Business Machines Corporation (“IBM”)

LSI Corporation

Maxim Integrated Products, Inc.

Micron Technology, Inc.

ON Semiconductor Corporation
Panasonic Corporation
Qualcomm Incorporated
Renesas Electronics Corporation
RF Micro Devices, Inc.
Samsung Electronics Co., Ltd.
Sony Corporation
STMicroelectronics N.V.
Taiwan Semiconductor Manufacturing Company Limited
Texas Instruments Incorporated
Toshiba Corporation
Xilinx, Inc.

Our top 25 customers accounted for 83.9% of our net sales in 2012, and our ten largest customers accounted for approximately 
62.2%, 61.0% and 54.2% and of our net sales for the years ended December 31, 2012, 2011 and 2010, respectively.  Qualcomm 
Incorporated  accounted  for  more  than  10%  of  our  net  sales  in  2012.    Qualcomm  Incorporated  and Texas  Instruments 
Incorporated each accounted for more than 10% of our consolidated net sales in 2011.  No customer accounted for more 
than 10% of our consolidated net sales in 2010.  

For segment information, see Note 18 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on 
Form 10-K.

MATERIALS AND EQUIPMENT

Materials

Our  materials  are  used  primarily  for  packaging  activities.    Our  packaging  operations  depend  upon  obtaining  adequate 
supplies of materials on a timely basis.  The principal materials used in our packaging process are leadframes, laminate 
substrates, gold and copper wire, mold compound, epoxy, tubes and trays.  The silicon wafer is generally consigned from 
the customer.  We do not take ownership of the customer consigned wafer, and title and risk of loss remains with the customer 
for these materials.  Test materials constitute a very small portion of our total test cost.  We purchase materials based on 
customer forecasts, and our customers are generally responsible for any unused materials which we purchased based on 
such forecasts.

We obtain the materials required for packaging services from various suppliers.  We source most of our materials, including 
critical materials such as leadframes, laminate substrates and gold wire, from a limited group of suppliers.  We work closely 
with our primary material suppliers to ensure that materials are available and delivered on time and, we also negotiate world-
wide pricing agreements with our major suppliers to take advantage of the scale of our operations.  

Equipment

Our ability to meet the changing demand from our customers for manufacturing capacity depends upon obtaining packaging 
and test equipment in a timely manner.  We work closely with our main equipment suppliers to coordinate the ordering and 
delivery of equipment to meet our expected capacity needs.

13

 
Packaging Equipment

The primary types of equipment used in providing our packaging services are wirebonders and die bonders.  In addition, 
we maintain a variety of other packaging equipment, including mold, singulation, die attach, ball attach and wafer backgrind, 
along with numerous other types of manufacturing equipment.  A substantial portion of our packaging equipment base can 
generally be used and adapted to support the manufacture of many of our packages through the use of relatively low cost 
tooling, although equipment used in advanced packaging can be more difficult to redeploy than equipment used in traditional 
wirebond packaging.

We also purchase wafer bumping equipment to facilitate our flip chip and wafer level packaging services.  Wafer bump 
equipment includes sputter and spin coaters, electroplating equipment, reflow ovens and other types of equipment.  This 
equipment tends to have longer lead times for order and installation than other packaging equipment and is sold in relatively 
larger increments of capacity.

Test Equipment

The primary equipment used in the testing process includes testers, handlers and probers.  Handlers are used to transfer 
individual or small groups of packaged integrated circuits to a tester.  Test equipment is generally a more capital intensive 
portion of the process and tends to have longer delivery lead times than most types of packaging equipment.  We focus our 
capital additions on standardized tester platforms in order to maximize test equipment utilization where possible.

ENVIRONMENTAL MATTERS

The semiconductor packaging process uses chemicals, materials and gases and generates byproducts that are subject to 
extensive governmental regulations.  For example, we produce liquid waste when semiconductor wafers are diced into chips 
with the aid of diamond saws, then cooled with running water.  In addition, semiconductor packages have historically utilized 
metallic alloys containing lead (Pb) within the interconnect terminals typically referred to as leads, pins or balls.  The usage 
of lead (Pb) has decreased over the past few years, as we have ramped volume production of alternative lead (Pb)-free 
processes.  Federal, state and local regulations in the U.S., as well as environmental regulations internationally, impose 
various controls on the storage, handling, discharge and disposal of chemicals and materials used in our manufacturing 
processes and in the factories we occupy.

We  are  engaged  in  a  continuing  program  to  assure  compliance  with  federal,  state  and  local  environmental  laws  and 
regulations.  We do not expect that capital expenditures or other costs attributable to compliance with environmental laws 
and regulations will have a material adverse effect on our business, liquidity, results of operations, financial condition or 
cash flows.

COMPETITION

The  outsourced  semiconductor  packaging  and  test  market  is  very  competitive.    We  face  substantial  competition  from 
established  packaging  and  test  service  providers  primarily  located  in  Asia,  including  companies  with  significant 
manufacturing capacity, financial resources, research and development operations, marketing and other capabilities.  These 
companies include:

•  Advanced Semiconductor Engineering, Inc.,

• 

• 

Siliconware Precision Industries Co., Ltd. and

STATS ChipPAC Ltd.

14

Such companies also have developed relationships with most of the world’s largest semiconductor companies, including 
current or potential customers of Amkor.  We also compete with the internal semiconductor packaging and test capabilities 
of  many  of  our  customers.    Our  integrated  device  manufacturer  customers  continually  evaluate  the  attractiveness  of 
outsourced services against their own in-house packaging and test services and at times may decide to shift some or all of 
their outsourced packaging and test services to internally sourced capacity.  We also compete with companies (including 
semiconductor  foundries)  that  provide  wafer  bumping  and  other  advanced  packaging  solutions  that  compete  with  our 
packaging and test services.  In addition, we compete with companies that offer only test services and not packaging.

The principal elements of competition in the semiconductor packaging and test services market include:

• 

• 

• 

• 

• 

• 

• 

• 

technical competence;

quality;

price;

breadth of packaging and test services offered, including turnkey services;

new package and test design, technology innovation and implementation;

cycle times;

customer service and

available capacity and ability to invest in capacity, geographic location and scale of manufacturing.

We believe that we generally compete favorably with respect to each of these elements.

INTELLECTUAL PROPERTY

We maintain an active program to protect and derive value from our investment in technology and the associated intellectual 
property rights.  Intellectual property rights that apply to our various products and services include patents, copyrights, trade 
secrets and trademarks.  We have filed and obtained a number of patents in the U.S. and abroad, and their durations vary 
depending on the jurisdiction in which each patent is filed.  Although our patents are an important element of our intellectual 
property strategy as a whole, we are not materially dependent on any one patent or any one technology.  We expect to 
continue to file patent applications when appropriate to protect our proprietary technologies, but we cannot assure you that 
we will receive patents from pending or future applications.  In addition, any patents we obtain may be challenged, invalidated 
or circumvented and may not provide meaningful protection or other commercial advantage to us.

We also protect certain details about our processes, products and strategies as trade secrets by maintaining the confidentiality 
of the information we believe provides us with a competitive advantage.  We have ongoing programs designed to maintain 
the confidentiality of such information.  Further, to distinguish our products from our competitors’ products, we have obtained 
certain  trademarks  and  service  marks  and  may  promote  our  particular  brands  through  advertising  and  other  marketing 
techniques.

EMPLOYEES

As  of  December 31,  2012,  we  had  approximately  18,900 full-time  employees.    Of  the  total  employee  population, 
approximately 14,000 were engaged in manufacturing services, 2,900 were engaged in manufacturing support, 400 were 
engaged in research and development, 300 were engaged in marketing and sales and 1,300 were engaged in administration, 
business management and finance.  We believe that our relations with our employees are good, and we have not experienced 
a work stoppage in any of our factories.  Our employees in France, the Philippines, Taiwan and the U.S. are not represented 
by any union.  Certain employees at our factories in China, Japan and Korea are members of a union, and we operate subject 
to collective bargaining agreements that we have entered into with the unions in Japan and Korea.

15

Item 1A. 

Risk Factors

The factors discussed below are cautionary statements that identify important factors and risks that could cause actual results 
to differ materially from those anticipated by the forward-looking statements contained in this report.  For more information 
regarding the forward-looking statements contained in this report, see the introductory paragraph to Part II, Item 7 of this 
Annual Report on Form 10-K.  You should carefully consider the risks and uncertainties described below, together with all 
of the other information included in this report, in considering our business and prospects.  The risks and uncertainties 
described below are not the only ones facing Amkor.  Additional risks and uncertainties not presently known to us may also 
impair our business operations.  The occurrence of any of the following risks could affect our business, liquidity, results of 
operations, financial condition or cash flows.

Dependence  on  the  Highly  Cyclical  Semiconductor  and  Electronic  Products  Industries —  We  Operate  in  Volatile 
Industries  and  Industry  Downturns  and  Declines  in  Global  Economic  and  Financial  Conditions  Could  Harm  Our 
Performance.

Our business is impacted by market conditions in the semiconductor industry, which is cyclical by nature and impacted by 
broad economic factors, such as world-wide gross domestic product and consumer spending.  The semiconductor industry 
has experienced significant and sometimes prolonged downturns in the past.  For example, the financial crisis and global 
recession in 2008 and 2009 resulted in a downturn in the semiconductor industry that adversely affected our business and 
results of operations during those periods.  Although the world economy recovered somewhat in 2010, economic growth 
slowed in 2011 and 2012 in the U.S. and internationally.  In view of this slow growth and the current economic uncertainty 
worldwide, consumer demand in the U.S. and globally may be adversely impacted which may harm the semiconductor 
industry and our business.

Since our business is, and will continue to be, dependent on the requirements of semiconductor companies for outsourced 
packaging and test services, any downturn in the semiconductor industry or any other industry that uses a significant number 
of semiconductor devices, such as consumer electronic products, telecommunication devices or computing devices, could 
have a material adverse effect on our business and operating results.  It is difficult to predict the timing, strength or duration 
of any economic slowdown or subsequent economic recovery, which, in turn, makes it more challenging for us to forecast 
our operating results, make business decisions and identify risks that may affect our business, sources and uses of cash, 
financial condition and results of operations.  Additionally, if industry conditions deteriorate, we could suffer significant 
losses, as we have in the past, which could materially impact our business, liquidity, results of operations, financial condition 
and cash flows.

Fluctuations in Operating Results and Cash Flows — Our Operating Results and Cash Flows Have Varied and May 
Vary Significantly as a Result of Factors That We Cannot Control.

Many factors, including the impact of adverse economic conditions, could have a material adverse effect on our net sales, 
gross profit, operating results and cash flows, or lead to significant variability of quarterly or annual operating results.  Our 
profitability and ability to generate cash from operations is principally dependent upon demand for semiconductors, the 
utilization of our capacity, semiconductor package mix, the average selling price of our services, our ability to manage our 
capital expenditures in response to market conditions and our ability to control our costs including labor, material, overhead 
and financing costs.  The downturn in demand for semiconductors in late 2008 and in 2009 resulted in significant declines 
in our operating results and cash flows as capacity utilization declined.  Although the world economy recovered somewhat 
in 2010, the recent slow rate of economic growth in the U.S. and elsewhere and economic uncertainty worldwide, or the 
negative impact on economic growth resulting from the action or inaction of the U.S. government relating to federal income 
tax  increases,  the  federal  debt  ceiling,  the  federal  deficit  and  government  spending  restrictions,  could  adversely  affect 
consumer demand in the U.S. and globally, which may negatively impact our operating results.

Our net sales, gross profit, operating income and cash flows have historically fluctuated significantly from quarter to quarter 
as a result of many of the following factors, over which we have little or no control and which we expect to continue to 
impact our business:

• 

• 

fluctuation in demand for semiconductors and conditions in the semiconductor industry;

changes in our capacity utilization rates;

16

• 

• 

• 

• 

• 

• 

changes in average selling prices;

changes in the mix of semiconductor packages;

evolving packaging and test technology;

absence of backlog and the short-term nature of our customers’ commitments and the impact of these factors on 
the timing and volume of orders relative to our production capacity;

changes in costs, availability and delivery times of raw materials and components;

changes in labor costs to perform our services;

•  wage and commodity price inflation, including precious metals;

• 

• 

• 

• 

• 

the timing of expenditures in anticipation of future orders;

changes in effective tax rates;

the availability and cost of financing;

intellectual property transactions and disputes;

high leverage and restrictive covenants;

•  warranty and product liability claims and the impact of quality excursions and customer disputes and returns;

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

costs associated with litigation judgments, indemnification claims and settlements;

international events, political instability, civil disturbances or environmental or natural events, such as earthquakes, 
that impact our operations;

pandemic illnesses that may impact our labor force and our ability to travel;

difficulties integrating acquisitions and the failure of our joint ventures to operate in accordance with business 
plans;

our ability to attract and retain qualified employees to support our global operations;

loss of key personnel or the shortage of available skilled workers;

fluctuations in foreign exchange rates and the cost of materials used in our packaging services such as gold and 
copper;

delay, rescheduling and cancellation of large orders;

fluctuations in our manufacturing yields  and

dependence  on  key  customers  or  concentration  of  customers  in  certain  market  segments,  such  as  mobile 
communications.  

It is often difficult to predict the impact of these factors upon our results for a particular period.  The downturn in the global 
economy and the semiconductor industry increased the risks associated with the foregoing factors as customer forecasts 
became more volatile, and there was less visibility regarding future demand and significantly increased uncertainty regarding 
the economy, credit markets and consumer demand.  Although the world economy recovered somewhat in 2010, the recent 
slow rate of economic growth in the U.S. and elsewhere and economic uncertainty worldwide could continue to cause 
volatility in customer forecasts and reduce our visibility regarding future demand in the semiconductor industry.  These 
factors may have a material and adverse effect on our business, liquidity, results of operations, financial condition and cash 
flows or lead to significant variability of quarterly or annual operating results.  In addition, these factors may adversely 
affect our credit ratings which could make it more difficult and expensive for us to raise capital and could adversely affect 
the price of our securities.

17

High Fixed Costs — Due to Our High Percentage of Fixed Costs, We Will Be Unable to Maintain Our Gross Margin 
at Past Levels if We Are Unable to Achieve Relatively High Capacity Utilization Rates.

Our operations are characterized by relatively high fixed costs.  Our profitability depends in part not only on pricing levels 
for our packaging and test services, but also on the efficient utilization of our human resources and packaging and test 
equipment.  In particular, increases or decreases in our capacity utilization can significantly affect gross margins since the 
unit cost of packaging and test services generally decreases as fixed costs are allocated over a larger number of units.  In 
periods of low demand, we experience relatively low capacity utilization in our operations, which leads to reduced margins 
during that period.  For example, we experienced lower than optimum utilization in late 2008 and in 2009 due to a decline 
in world-wide demand for our packaging and test services which impacted our gross margin.  Transitions between different 
packaging technologies, such as the transition from gold wirebond to flip chip and copper wirebond packages, can also 
impact our capacity utilization if we do not efficiently redeploy our equipment assets.  For example, in 2011 the migration 
of some customer demand from wirebond to flip chip packages resulted in under-utilized wirebond assets which negatively 
impacted our capacity utilization and gross margin.  Although our capacity utilization at times has been strong, we cannot 
assure you that we will be able to achieve consistently high capacity utilization, and if we fail to do so, our gross margins 
may decrease.  If our gross margins decrease, our business, liquidity, results of operations, financial condition and cash 
flows could be materially adversely affected.

In addition, our fixed operating costs have increased in recent years in part as a result of our efforts to expand our capacity 
through significant capital additions.  Forecasted customer demand for which we have made capital investments may not 
materialize, especially if industry conditions deteriorate.  As a result, our sales may not adequately cover our substantial 
fixed costs resulting in reduced profit levels or causing significant losses, both of which may adversely impact our business, 
liquidity, results of operations, financial condition and cash flows.

Guidance — Our Failure to Meet Our Guidance or Analyst Projections Could Adversely Impact the Trading Prices of 
Our Securities.

We periodically provide guidance to investors with respect to certain financial information for future periods.  Securities 
analysts also periodically publish their own projections with respect to our future operating results.  As discussed above 
under “Fluctuations in Operating Results and Cash Flows — Our Operating Results and Cash Flows Have Varied and May 
Vary Significantly as a Result of Factors That We Cannot Control,” our operating results and cash flows vary significantly 
and are difficult to accurately predict.  Volatility in customer forecasts and reduced visibility caused by economic uncertainty 
and fluctuations in global consumer demand make it particularly difficult to predict future results.  To the extent we fail to 
meet or exceed our own guidance or the analyst projections for any reason, the trading prices of our securities may be 
adversely impacted.  Moreover, even if we do meet or exceed that guidance or those projections, if analysts and investors 
do not react favorably, or if analysts were to discontinue providing coverage of our company, the trading prices of our 
securities may be adversely impacted.

Declining Average  Selling  Prices —  The  Semiconductor  Industry  Places  Downward  Pressure  on  the  Prices  of  Our 
Packaging and Test Services.

Prices for packaging and test services have generally declined over time.  Historically, we have been able to partially offset 
the effect of price declines by successfully developing and marketing new packages with higher margins, by negotiating 
lower prices with our material vendors, recovering material cost increases from our customers and by driving engineering 
and technological changes in our packaging and test processes, which resulted in reduced manufacturing costs.  We expect 
downward pressure on average selling prices for our packaging and test services to continue in the future.  If we are unable 
to offset a decline in average selling prices by developing and marketing new packages with higher prices, reducing our 
purchasing costs, recovering more of our material cost increases from our customers and reducing our manufacturing costs, 
our business, liquidity, results of operations, financial condition and cash flows could be materially adversely affected.

18

Decisions by Our Integrated Device Manufacturer Customers to Curtail Outsourcing May Adversely Affect Our Business.

Historically,  we  have  been  dependent  on  the  trend  in  outsourcing  of  packaging  and  test  services  by  integrated  device 
manufacturers ("IDM").  Our IDM customers continually evaluate the need for outsourced services against their own in-
house packaging and test services.  As a result, at any time and for a variety of reasons, IDMs may decide to shift some or 
all of their outsourced packaging and test services to internally sourced capacity.

The reasons IDMs may shift their internal capacity include:

• 

• 

• 

• 

their desire to realize higher utilization of their existing packaging and test capacity, especially during downturns 
in the semiconductor industry;

their unwillingness to disclose proprietary technology;

their possession of more advanced packaging and test technologies and

the guaranteed availability of their own packaging and test capacity.

In addition, to the extent we limit capacity commitments for certain customers, these customers may increase their level of 
in-house packaging and test capabilities, which could make it more difficult for us to regain their business when we have 
available capacity.  

In a downturn in the semiconductor industry, IDMs could respond by shifting some or all outsourced packaging and test 
services to internally serviced capacity on a short term basis.  Also, the IDMs could curtail or reverse the trend of outsourcing 
packaging and test services.  If we experience a significant loss of IDM business, it could have a material adverse effect on 
our business, liquidity, results of operations, financial condition and cash flows, especially during a prolonged industry 
downturn.

Our Substantial Indebtedness Could Adversely Affect Our Financial Condition and Prevent Us from Fulfilling Our 
Obligations.

We have a significant amount of indebtedness.  As of December 31, 2012, our total debt balance was $1,545.0 million and 
was classified as long-term.  As of December 31, 2012, we had availability of $149.7 million under our $150.0 million first 
lien senior secured revolving credit facility.  Additionally, our foreign subsidiaries had $80.0 million available to be drawn 
under revolving credit facilities and $100.0 million available to be borrowed under term loans maturing between June 2013 
and December 2019, of which we borrowed an additional $23.0 million under our term loans in 2013.  Despite current debt 
levels, the terms of the agreements governing our indebtedness allow us and our subsidiaries to incur more debt, subject to 
certain limitations.  We may consider investments in joint ventures, acquisitions or increased capital additions, which may 
increase our indebtedness.  For example, in light of possible investment opportunities, we are exploring additional lines of 
credit of approximately $300 million.  If new debt is added to our consolidated debt level, the related risks that we face 
could intensify.

Our substantial indebtedness could:

•  make it more difficult for us to satisfy our obligations with respect to our indebtedness, including our obligations 

under our indentures to purchase notes tendered as a result of a change in control of Amkor;

• 

• 

• 

• 

• 

increase our vulnerability to general adverse economic and industry conditions;

limit our ability to fund future working capital, capital expenditures, research and development and other business 
opportunities;

require us to dedicate a substantial portion of our cash flow from operations to service payments on our debt;

increase the volatility of the price of our common stock;

limit our flexibility to react to changes in our business and the industry in which we operate;

19

• 

• 

place us at a competitive disadvantage to any of our competitors that have less debt and

limit, along with the financial and other restrictive covenants in our indebtedness, among other things, our ability 
to borrow additional funds.

We May Have Difficulty Funding Liquidity Needs.

We assess our liquidity based on our current expectations regarding sales, operating expenses, capital spending and debt 
service  requirements.    Our  liquidity  is  affected  by,  among  other  things,  the  performance  of  our  business,  our  capital 
expenditure levels and our ability to repay debt out of our operating cash flows or with the proceeds of debt or equity 
financings.

We operate in a capital intensive industry.  Servicing our current and future customers requires that we incur significant 
operating expenses and continue to make significant capital expenditures, which are generally made in advance of the related 
revenues and without any firm customer commitments.  During 2012, we had capital additions of $533.2 million.  In 2013, 
we expect to make capital additions of approximately $450 million and are also planning an additional $150 million of 
spending for the acquisition of land and construction related to our previously announced new factory and research and 
development center in Korea.  In total, we expect to spend approximately $300 million over the next several years for the 
construction of the facility.  Ultimately, the amount of our capital additions in 2013 and thereafter may vary materially and 
will depend on several factors including, among others, the timing and implementation of any capital projects under review, 
the performance of our business, economic and market conditions, the cash needs and investment opportunities for the 
business, the need for additional capacity to service anticipated customer demand and the availability of cash flows from 
operations or financing.

In addition, we have a significant level of debt, with $1,545.0 million outstanding at December 31, 2012, none of which is 
current.  The terms of such debt require significant scheduled principal payments in the coming years, including none due 
in 2013, $250.0 million due in 2014, $100.0 million due in 2015, none due in 2016, $137.0 million due in 2017 and $1,058.0 
million due thereafter.  The interest payments required on our debt are also substantial.  For example, in 2012, we paid $86.1 
million of interest.  The sources funding our operations, including making capital expenditures and servicing principal and 
interest  obligations  with  respect  to  our  debt,  are  cash  flows  from  our  operations,  existing  cash  and  cash  equivalents, 
borrowings under available debt facilities, or proceeds from any additional debt or equity financing.  As of December 31, 
2012, we had cash and cash equivalents of $413.0 million and availability of $149.7 million under our $150.0 million senior 
secured revolving credit facility which matures in June 2017.  Additionally, our foreign subsidiaries had $80.0 million 
available to be drawn under revolving credit facilities and $100.0 million available to be borrowed under term loans maturing 
between June 2013 and December 2019, of which we borrowed an additional $23.0 million under our term loans in 2013.  
In light of possible investment opportunities, we are exploring additional lines of credit of approximately $300 million.  

The health of the worldwide banking system and financial markets affects the liquidity in the global economic environment.  
Volatility in fixed income, credit and equity markets could make it difficult for us to maintain our existing credit facilities 
or refinance our debt.  In addition, there is a risk that we could fail to generate the necessary net income or operating cash 
flows to meet the funding needs of our business due to a variety of factors, including the cyclical nature of the semiconductor 
industry and the other factors discussed in this "Risk Factors" section.  If we fail to generate the necessary cash flows or 
we are unable to access the capital markets when needed, our liquidity may be adversely impacted.

Our  Ability  To  Draw  On  Our  Current  Loan  Facilities  May  Be  Adversely  Affected  by  Conditions  in  the  U.S.  and 
International Capital Markets.

If financial institutions that have extended credit commitments to us are adversely affected by the conditions of the U.S. and 
international capital and credit markets, they may be unable to fund borrowings under their credit commitments to us.  For 
example, we have a $150.0 million senior secured revolving credit facility with three banks in the U.S.  If any of these 
banks are adversely affected by capital and credit market conditions and are unable to make loans to us when requested, 
there could be a corresponding adverse impact on our financial condition and our ability to borrow additional funds, if 
needed, for working capital, capital expenditures, acquisitions, research and development and other corporate purposes.

20

Restrictive Covenants in the Indentures and Agreements Governing Our Current and Future Indebtedness Could Restrict 
Our Operating Flexibility.

The indentures and agreements governing our existing debt, and debt we may incur in the future, contain, or may contain, 
affirmative and negative covenants that materially limit our ability to take certain actions, including our ability to incur 
debt, pay dividends and repurchase stock, make certain investments and other payments, enter into certain mergers and 
consolidations, engage in sale leaseback transactions and encumber and dispose of assets.  In addition, our future debt 
agreements may contain financial covenants and ratios.

The breach of any of these covenants by us or the failure by us to meet any of the financial ratios or conditions could result 
in a default under any or all of such indebtedness.  If a default occurs under any such indebtedness, all of the outstanding 
obligations  thereunder  could  become  immediately  due  and  payable,  which  could  result  in  a  default  under  our  other 
outstanding debt and could lead to an acceleration of obligations related to other outstanding debt.  The existence of such 
a default or event of default could also preclude us from borrowing funds under our revolving credit facilities.  Our ability 
to comply with the provisions of the indentures, credit facilities and other agreements governing our outstanding debt and 
indebtedness we may incur in the future can be affected by events beyond our control and a default under any debt instrument, 
if not cured or waived, could have a material adverse effect on us.

We Have Significant Severance Plan Obligations Associated With Our Manufacturing Operations in Korea Which Could 
Reduce Our Cash Flow and Negatively Impact Our Financial Condition.

We sponsor an accrued severance plan for our Korean subsidiary, under which we have an accrued liability of $126.5 million 
as of December 31, 2012.  Existing tax laws in Korea limit our ability to deduct severance expenses associated with the 
current plan.  These limitations are designed to encourage companies to migrate to a defined contribution or defined benefit 
plan.  If we adopt a new plan, we may fund a significant portion of the existing liability, which could have a material adverse 
effect on our liquidity, financial condition and cash flows.  If we do not adopt a new plan, our ability to deduct accrued 
severance will continue to be limited, and as a result we will have to pay higher taxes, which could adversely affect our 
liquidity, financial condition and cash flows.  

Under the existing Korean plan, to the extent eligible employees are terminated, our Korean subsidiary would be required 
to make lump-sum severance payments on behalf of these eligible employees based on their length of service, seniority and 
rate of pay at the time of termination.  Since our severance plan obligation is significant, in the event of a significant layoff 
or other reduction in our labor force in Korea, payments under the plan could have a material adverse effect on our liquidity, 
financial condition and cash flows.  See Note 13 to our Consolidated Financial Statements in Part II, Item 8 to this Annual 
Report on Form 10-K.

If We Fail to Maintain an Effective System of Internal Controls, We May Not be Able to Accurately Report Financial 
Results or Prevent Fraud.

Effective internal controls are necessary to provide reliable financial reports and to assist in the effective prevention of 
fraud.  Any inability to provide reliable financial reports or prevent fraud could harm our business.  We must annually 
evaluate our internal procedures to satisfy the requirements of Section 404 of the Sarbanes-Oxley Act of 2002, which requires 
management and our independent registered public accounting firm to assess the effectiveness of internal control over 
financial reporting.

As previously reported, we are implementing a new enterprise resource planning (“ERP”) system in a multi-year program 
on a world-wide basis.  We have recently implemented several significant ERP modules and expect to implement additional 
ERP modules in the future.  The implementation of the ERP system represents a change in our internal control over financial 
reporting.  Although we continue to monitor and assess our internal controls in the new ERP system environment as changes 
are  made  and  new  modules  are  implemented,  and  have  taken  additional  steps  to  modify  and  enhance  the  design  and 
effectiveness of our internal control over financial reporting, there is a risk that deficiencies may occur that could constitute 
significant deficiencies or in the aggregate a material weakness.

21

If we fail to remedy any deficiencies or maintain the adequacy of our internal controls, we could be subject to regulatory 
scrutiny, civil or criminal penalties or shareholder litigation.  In addition, failure to maintain adequate internal controls could 
result in financial statements that do not accurately reflect our operating results or financial condition.

We Face Warranty Claims, Product Return and Liability Risks, the Risk of Economic Damage Claims and the Risk of 
Negative Publicity if Our Packages Fail.

Our packages are incorporated into a number of end products, and our business is exposed to warranty claims, product 
return and liability risks, the risk of economic damage claims and the risk of negative publicity if our packages fail.

We receive warranty claims from our customers which occur from time to time in the ordinary course of our business.  If 
we were to experience an unusually high incidence of warranty claims, we could incur significant costs and our business 
could be adversely affected.  In addition, we are exposed to the product and economic liability risks and the risk of negative 
publicity affecting our customers.  Our sales may decline if any of our customers are sued on a product liability claim.  We 
also may suffer a decline in sales from the negative publicity associated with such a lawsuit or with adverse public perceptions 
in general regarding our customers’ products.  Further, if our packages are delivered with impurities or defects, we could 
incur additional development, repair or replacement costs or suffer other economic losses, and our credibility and the market’s 
acceptance of our packages could be harmed.

Absence of Backlog — The Lack of Contractually Committed Customer Demand May Adversely Affect Our Sales.

Our packaging and test business does not typically operate with any material backlog.  Our quarterly net sales from packaging 
and test services are substantially dependent upon our customers’ demand in that quarter.  None of our customers have 
committed to purchase any significant amount of packaging or test services or to provide us with binding forecasts of demand 
for packaging and test services for any future period, in any material amount.  In addition, our customers often reduce, 
cancel or delay their purchases of packaging and test services for a variety of reasons including industry-wide, customer-
specific and Amkor-specific reasons.  Since a large portion of our costs is fixed and our expense levels are based in part on 
our expectations of future revenues, we may not be able to adjust costs in a timely manner to compensate for any sales 
shortfall.  If we are unable to adjust costs in a timely manner, our margins, operating results, financial condition and cash 
flows would be adversely affected.

Risks Associated With International Operations — We Depend on Our Factories and Operations in China, Japan, Korea, 
the Philippines and Taiwan.  Many of Our Customers’ and Vendors’ Operations Are Also Located Outside of the U.S.

We provide packaging and test services through our factories and other operations located in China, Japan, Korea, the 
Philippines and Taiwan.  Substantially all of our property, plant and equipment is located outside of the United States.  
Moreover, many of our customers’ and vendors’ operations are located outside the U.S.  The following are some of the risks 
we face in doing business internationally:

• 

• 

• 

• 

• 

• 

• 

changes in consumer demand resulting from deteriorating conditions in local economies;

regulations imposed by foreign governments, including limitations or taxes imposed on the payment of dividends 
and other payments by non-U.S. subsidiaries;

fluctuations in currency exchange rates;

political, military, civil unrest and terrorist risks, particularly an increase in tensions between North Korea and 
South Korea;

disruptions or delays in shipments caused by customs brokers or government agencies;

changes in regulatory requirements, tariffs, customs, duties and other restrictive trade barriers or policies;

difficulties in staffing, retention and employee turnover and managing foreign operations, including foreign labor 
disruptions;

22

• 

• 

difficulty in enforcing contractual rights and protecting our intellectual property rights and 

potentially adverse tax consequences resulting from changes in tax laws in the foreign jurisdictions in which we 
operate.

Changes in the U.S. Tax Law Regarding Earnings of Our Subsidiaries Located Outside the U.S. Could Materially Affect 
Our Future Results.

There have been proposals to change U.S. tax laws that would significantly impact how U.S. corporations are taxed on 
foreign earnings.  We earn a substantial portion of our income in foreign countries.  Although we cannot predict whether 
or in what form any of these proposals might be enacted into law, if adopted they could have a material adverse impact on 
our liquidity, results of operations, financial condition and cash flows.

We Face Risks in Connection with the Continuing Development and Implementation of Changes to, and Maintenance 
and Security of, Our Management Information Systems.

We depend on our management information systems for many aspects of our business.  Some of our key software has been 
developed by our own programmers, and this software may not be easily integrated with other software and systems.  Our 
systems may be susceptible to damage, disruptions or shutdowns due to failures during the process of upgrading, replacing 
or maintaining software, databases or components thereof, power outages, hardware failures, computer viruses, attacks by 
computer hackers, telecommunication failures, user errors, malfeasance or catastrophic events.  In addition, security breaches 
could  result  in  unauthorized  disclosure  of  confidential  information.    We  have  made  and  continue  to  make  significant 
investments to implement and evolve our management information systems.  In addition, we are implementing a new shop 
floor system in certain of our factories.  We face risks in connection with current and future projects to install new management 
information systems or upgrade our existing systems.  These risks include:

•  we may face delays in the design and implementation of the system;

• 

• 

the cost of the system may exceed our plans and expectations and

disruptions resulting from the implementation of the system may impact our ability to process transactions and 
delay  shipments  to  customers,  impact  our  results  of  operations  or  financial  condition  or  harm  our  control 
environment.

Our business could be materially and adversely affected if our management information systems are disrupted or if we are 
unable to successfully install new systems or improve, upgrade, integrate or expand upon our existing systems.

We Face Risks Trying to Attract and Retain Qualified Employees to Support Our Operations.

Our success depends to a significant extent upon the continued service of our key senior management, sales and technical 
personnel, any of whom may be difficult to replace.  Competition for qualified employees is intense, and our business could 
be adversely affected by the loss of the services of any of our existing key personnel, including senior management, as a 
result of competition or for any other reason.  We do not have employment agreements with our key employees, including 
senior management or other contracts that would prevent our key employees from working for our competitors in the event 
they cease working for us.  We cannot assure you that we will be successful in our efforts to retain key employees or in 
hiring and properly training sufficient numbers of qualified personnel and in effectively managing our growth.  Our inability 
to attract, retain, motivate and train qualified new personnel could have a material adverse effect on our business.

Difficulties Consolidating and Integrating Our Operations — We Face Challenges as We Integrate Diverse Operations. 

We have experienced, and expect to continue to experience, change in the scope and complexity of our operations resulting 
primarily  from  existing  and  future  facility  consolidations,  strategic  acquisitions,  joint  ventures  and  other  partnering 
arrangements.  Some of the risks from these activities include those associated with the following: 

• 

• 

increasing the scope, geographic diversity and complexity of our operations;

conforming an acquired company's standards, practices, systems and controls with our operations;

23

• 

• 

• 

increasing complexity from combining recent acquisitions of an acquired business; 

unexpected losses of key employees or customers of an acquired business; other difficulties in the assimilation of 
acquired operations, technologies or products and 

diversion of management and other resources from other parts of our operations and adverse effects on existing 
business relationships with customers.  

In connection with these activities, we may: 

• 

• 

• 

• 

• 

use a significant portion of our available cash; 

issue equity securities, which may dilute the ownership of current stockholders; 

incur substantial debt; 

incur or assume known or unknown contingent liabilities and 

incur large, immediate accounting write-offs and face antitrust or other regulatory inquiries or actions.  

For example, the businesses we have acquired had, at the time of acquisition, multiple systems for managing their own 
production, sales, inventory and other operations.  Migrating these businesses to our systems typically is a slow, expensive 
process requiring us to divert significant resources from other parts of our operations.  We may continue to face these 
challenges in the future.  For example, we have exercised our option to increase our ownership interest in J-Devices from 
30% to 60%, which is expected to close in April 2013, subject to regulatory approval, and we have additional options to 
increase our ownership over time to as much as 80%.  As a result, we anticipate that we will need to integrate the J-Devices 
operations with our existing operations. In addition, J-Devices will need to integrate with its operations the acquisitions it 
has recently completed or has pending. Furthermore, the governance provisions applicable to J-Devices restrict our ability 
to cause J-Devices to take certain actions without the consent of the other investors.  As a result of the risks discussed above, 
the  anticipated  benefits  of  the  increase  in  our  investment  in  J-Devices  or  other  future  acquisitions,  consolidations  and 
partnering arrangements may not be fully realized, if at all, and these activities could have a material adverse effect on our 
business, financial condition and results of operations.

Dependence  on  Materials  and  Equipment  Suppliers —  Our  Business  May  Suffer  If  the  Cost,  Quality  or  Supply  of 
Materials or Equipment Changes Adversely.

We obtain from various vendors the materials and equipment required for the packaging and test services performed by our 
factories.  We source most of our materials, including critical materials such as leadframes, laminate substrates and gold 
wire, from a limited group of suppliers.  A disruption to the operations of one or more of our suppliers could have a negative 
impact on our business.  For example, the severe earthquake and tsunami in Japan in 2011 had a significant adverse effect 
on the electronic industry supply chain impacting the supply of specialty chemicals, substrates, silicon wafers, equipment 
and other supplies to the electronics industry.  In addition, we purchase the majority of our materials on a purchase order 
basis.  Our business may be harmed if we cannot obtain materials and other supplies from our vendors in a timely manner, 
in sufficient quantities, at acceptable quality or at competitive prices.  Some of our customers are also dependent on a limited 
number of suppliers for certain materials and silicon wafers.  Shortages or disruptions in our customers' supply channels 
could have a material adverse effect on our business, financial condition, results of operations and cash flows.  For example, 
the shortage in the supply of 28 nanometer wafers to some of our customers in 2012 delayed or otherwise adversely impacted 
the demand for certain of our advanced packaging and test services.  

The Dodd-Frank Wall Street Reform and Consumer Protection Act imposes new requirements regarding the supply of 
minerals  originating  from  the  conflict  zones  of  the  Democratic  Republic  of  Congo  and  adjoining  countries.    Industry 
associations  and  some  of  our  customers  are  also  implementing  initiatives  to  improve  transparency  and  accountability 
concerning the supply of these materials and, in some cases, requiring us to certify that the covered materials we use in our 
packages do not come from the conflict areas.  We may incur additional costs associated with complying with the new 
requirements and customer initiatives.  These new requirements and customer initiatives could affect the sourcing and 
availability of metals used in the manufacture of semiconductor devices, and we cannot assure you that we will be able to 
obtain conflict-free materials in sufficient quantities and at competitive prices or that we will be able to verify the origin of 
all of the metals we use in our manufacturing process.  If we are unable to certify that the metals we use in our packages 

24

are conflict-free, it could adversely affect our business as some customers may move their business to other suppliers.  Our 
reputation could also be adversely affected.

We purchase new packaging and test equipment to maintain and expand our operations.  From time to time, increased 
demand for new equipment may cause lead times to extend beyond those normally required by equipment vendors.  For 
example,  in  the  past,  increased  demand  for  equipment  caused  some  equipment  suppliers  to  only  partially  satisfy  our 
equipment orders in the normal time frame or to increase prices during market upturns for the semiconductor industry.  The 
unavailability of equipment or failures to deliver equipment on a timely basis could delay or impair our ability to meet 
customer orders.  If we are unable to meet customer orders, we could lose potential and existing customers.  Generally, we 
acquire our equipment on a purchase order basis and do not enter into long-term equipment agreements.  As a result, we 
could experience adverse changes in pricing, currency risk and potential shortages in equipment in a strong market, which 
could have a material adverse effect on our results of operations.

We are a large buyer of gold and other commodity materials including substrates and copper.  The prices of gold and other 
commodities used in our business fluctuate.  Historically, we have been able to partially offset the effect of commodity price 
increases through price adjustments to some customers and changes in our product designs that reduce the material content 
and cost, such as the use of shorter, thinner, gold wire and migration to copper wire.  However, we typically do not have 
long-term  contracts  that  permit  us  to  impose  price  adjustments,  and  market  conditions  may  limit  our  ability  to  do  so.  
Significant price increases may adversely impact our gross margin in future periods to the extent we are unable to pass 
along past or future commodity price increases to our customers.

Loss of Customers — The Loss of Certain Customers or Reduced Orders from Existing Customers May Have a Significant 
Adverse Effect on Our Operations and Financial Results.

The loss of a significant customer, a reduction in orders from a significant customer or disruption in any of our significant 
strategic partnerships or other commercial arrangements may result in a decline in our sales and profitability.  Although we 
have approximately 200 customers, we have derived and expect to continue to derive a large portion of our revenues from 
a small group of customers during any particular period due in part to the concentration of market share in the semiconductor 
industry.  Our ten largest customers together accounted for approximately 62.2%, 61.0% and 54.2% of our net sales in the 
years  ended  December 31,  2012,  2011  and  2010,  respectively.    One  customer  accounted  for  more  than  10%  of  our 
consolidated net sales in 2012.  Two customers each accounted for more than 10% of our consolidated net sales in 2011, 
and no customer exceeded 10% of consolidated net sales in 2010.

The demand for our services from each customer is directly dependent upon that customer’s level of business activity, the 
quality  and  price  of  our  services,  our  cycle  time  and  delivery  performance,  the  customer's  qualification  of  additional 
competitors on products we package or test and a number of other factors.  Each of these factors could vary significantly 
from year to year resulting in the loss or reduction of customer orders.  Our business is likely to remain subject to this 
variability in order levels, and we cannot assure you that our key customers or any other customers will continue to place 
orders with us in the future at the same levels as in past periods.

The loss of one or more of our significant customers, or reduced orders by any one of them, and our inability to replace 
these customers or make up for such orders could reduce our sales and profitability.  For example, our facility in Iwate, 
Japan is primarily dedicated to a single customer, Toshiba.  We have also invested in an unconsolidated affiliate, J-Devices, 
for which Toshiba is the primary customer.  If we were to lose Toshiba as a customer or if it were to materially reduce its 
business with us, it could be difficult for us to find one or more new customers to utilize the capacity, which could have a 
material adverse effect on our operations and financial results.  In 2012, one customer accounted for 21.3% of our consolidated 
net sales, representing approximately 20.0% of our packaging net sales and 31.9% of our test net sales.  If we were to lose 
our largest customer, or if it significantly reduced its level of business with us, the loss could have a material adverse effect 
on our business, liquidity, results of operations, financial condition and cash flows.

Capital Additions — We Make Substantial Capital Additions To Support the Demand Of Our Customers, Which May 
Adversely Affect Our Business If the Demand Of Our Customers Does Not Develop As We Expect or Is Adversely Affected. 

We make significant capital additions in order to service the demand of our customers.  For example, we expect that our 
2013 capital additions will be approximately $450 million, in addition to $150 million of spending for the acquisition of 

25

land and construction relating to our new factory and research and development center in Korea.  Additionally, over the 
next several years, we expect to spend a total of approximately $300 million for the construction of the facility.  The amount 
of our capital additions depends on several factors, including the performance of our business, our assessment of future 
industry and customer demand, our capacity utilization levels and availability, our liquidity position and the availability of 
financing.  Our ongoing capital addition requirements may strain our cash and short-term asset balances, and, in periods 
when we are expanding our capital base, we expect that depreciation expense and factory operating expenses associated 
with our capital additions to increase production capacity will put downward pressure on our gross margin, at least over 
the near term.  From time to time, we also make significant capital additions based on specific business opportunities with 
one or a few key customers, and the additional equipment purchased may not be readily usable to support other customers.  
If demand is insufficient to fill our capacity, or we are unable to efficiently redeploy such equipment, our capacity utilization 
and gross margin could be negatively impacted.  Our capital additions have increased as we transition to new packaging 
and test technologies because, among other things, new equipment used for these technologies is generally more expensive 
and often our existing equipment cannot be redeployed in whole or part for these technologies.

Furthermore, if we cannot generate or raise additional funds to pay for capital additions, particularly in some of the advanced 
packaging and bumping areas, as well as research and development activities, our growth and future profitability may be 
adversely affected.  Our ability to obtain external financing in the future is subject to a variety of uncertainties, including:

• 

• 

• 

• 

our future financial condition, results of operations and cash flows;

general market conditions for financing;

volatility in fixed income, credit and equity markets and

economic, political and other global conditions.

The lead time needed to order, install and put into service various capital additions is often significant, and, as a result, we 
often need to commit to capital additions in advance of our receipt of firm orders or advance deposits based on our view of 
anticipated future demand with only very limited visibility.  Although we seek to limit our exposure in this regard, in the 
past we have from time to time expended significant capital for additions for which the anticipated demand did not materialize 
for a variety of reasons, many of which were outside of our control.  To the extent this occurs in the future, our business, 
liquidity, results of operations, financial condition and cash flows could be materially adversely affected.

In addition, during  periods where customer demand exceeds our  capacity,  customers may transfer some or  all of their 
business to other suppliers who are able to support their needs.  To the extent this occurs, our business, liquidity, results of 
operations, financial condition and cash flows could be materially adversely affected.

Impairment Charges — Any Impairment Charges Required Under U.S. GAAP May Have a Material Adverse Effect on 
Our Net Income.

Under U.S. GAAP, we review our long-lived assets including property, plant and equipment, intellectual property and other 
intangibles for impairment when events or changes in circumstances indicate the carrying value may not be recoverable.  
Factors we consider include significant under-performance relative to expected historical or projected future operating 
results, significant negative industry or economic trends and our market capitalization relative to net book value.  We may 
be required in the future to record a significant charge to earnings in our financial statements during the period in which 
any impairment of our long-lived assets is determined.  Such charges have had and could have a significant adverse impact 
on our results of operations and our operating flexibility under our debt covenants.

Litigation Incident to Our Business Could Adversely Affect Us.

We have been a party to various legal proceedings, including those described in Note 16 to our Consolidated Financial 
Statements in Part II, Item 8 of this Annual Report on Form 10-K, and may be a party to litigation in the future.  If an 
unfavorable ruling or outcome were to occur in these legal proceedings or future litigation, there could be a material adverse 
impact on our business, liquidity, results of operations, financial condition, cash flows and the trading price of our securities.

For example, the final award pending in the arbitration with Tessera could be more than the amount accrued and we expect 
to record our estimate of interest accruing with the passage of time and may record additional charges as information develops 

26

or upon the issuance of the final award.  Tessera publicly announced its intention to seek an amount in excess of $150 
million.  In addition, Tessera recently filed a complaint against Amkor in the U.S. District Court for the District of Delaware.  
There can be no assurance that the termination of the Tessera license agreement will not have a material impact on our 
ongoing business and customer relationships, including any supply arrangements with customers formerly benefiting from 
our rights under the terminated license agreement; that the U.S. District Court complaint filed by Tessera will not result in 
an unfavorable outcome for our company, including an injunction and significant damage award or that there will not be 
any further disputes with Tessera or others involving our company's technology or business.  

We  Could  Suffer  Adverse  Tax  and  Other  Financial  Consequences  if  Taxing  Authorities  Do  Not  Agree  with  Our 
Interpretation of Applicable Tax Laws, Including Whether We Continue to Qualify for Our Tax Holidays.

Our corporate structure and operations are based, in part, on interpretations of various tax laws, including withholding tax, 
compliance with tax holiday requirements, application of changes in tax law to our operations and other relevant laws of 
applicable  taxing  jurisdictions.    From  time  to  time,  the  taxing  authorities  of  the  relevant  jurisdictions  may  conduct 
examinations of our income tax returns and other regulatory filings.  We cannot assure you that the taxing authorities will 
agree with our interpretations, including whether we continue to qualify for our tax holidays.  To the extent they do not 
agree, we may seek to enter into settlements with the taxing authorities which require significant payments or otherwise 
adversely affect our results of operations or financial condition.  We may also appeal the taxing authorities’ determinations 
to the appropriate governmental authorities, but we cannot be sure we will prevail.  If we do not prevail, we may have to 
make significant payments or otherwise record charges (or reduce tax assets) that adversely affect our results of operations, 
financial condition and cash flows.  Additionally, certain of our subsidiaries operate under tax holidays, which will expire 
in whole or in part at various dates in the future.  As those tax holidays expire, our tax expenses will increase as income 
from those jurisdictions become subject to higher statutory income tax rates, thereby reducing our liquidity and cash flow.  

Intellectual Property — Our Business Will Suffer if We Are Not Able to Develop New Proprietary Technology, Protect 
Our Proprietary Technology and Operate Without Infringing the Proprietary Rights of Others.

The complexity and breadth of semiconductor packaging and test services are rapidly increasing.  As a result, we expect 
that we will need to develop, acquire and implement new manufacturing processes and packaging design technologies and 
tools  in  order  to  respond  to  competitive  industry  conditions  and  customer  requirements.   Technological  advances  also 
typically lead to rapid and significant price erosion and may make our existing packages less competitive or our existing 
inventories obsolete.  If we cannot achieve advances in packaging design or obtain access to advanced packaging designs 
developed by others, our business could suffer.  

The need to develop and maintain advanced packaging capabilities and equipment could require significant research and 
development, capital expenditures and acquisitions in future years.  In addition, converting to new packaging designs or 
process methodologies could result in delays in producing new package types, which could adversely affect our ability to 
meet customer orders and adversely impact our business.

The process of seeking patent protection takes a long time and is expensive.  There can be no assurance that patents will 
issue from pending or future applications or that, if patents are issued, the rights granted under the patents will provide us 
with  meaningful  protection  or  any  commercial  advantage.   Any  patents  we  do  obtain  will  eventually  expire,  may  be 
challenged, invalidated or circumvented and may not provide meaningful protection or other commercial advantage to us.

Some of our technologies are not covered by any patent or patent application.  The confidentiality agreements on which we 
rely to protect these technologies may be breached and may not be adequate to protect our proprietary technologies.  There 
can be no assurance that other countries in which we market our services will protect our intellectual property rights to the 
same extent as the U.S.

Our competitors may develop, patent or gain access to know-how and technology similar to our own.  In addition, many 
of our patents are subject to cross licenses, several of which are with our competitors.  The semiconductor industry is 
characterized by frequent claims regarding the infringement of patent and other intellectual property rights.  If any third 
party makes an enforceable infringement claim against us or our customers, we could be required to:

27

• 

• 

• 

• 

• 

discontinue the use of certain processes;

cease to provide the services at issue;

pay substantial damages;

develop non-infringing technologies or

acquire licenses to such technology.

We may need to enforce our patents or other intellectual property rights, including our rights under patent and intellectual 
property licenses with third parties, or defend ourselves against claimed infringement of the rights of others through litigation, 
which could result in substantial cost and diversion of our resources.  Furthermore, if we fail to obtain necessary licenses, 
our business could suffer.  We have been involved in legal proceedings involving the acquisition and license of intellectual 
property rights, the enforcement of our existing intellectual property rights or the enforcement of the intellectual property 
rights  of  others,  including  the  legal  proceeding  filed  by  and  against Tessera,  Inc.  and  the  complaint  filed  and  ongoing 
proceeding against Carsem (M) Sdn Bhd, Carsem Semiconductor Sdn Bhd, and Carsem Inc., or collectively “Carsem”, 
which are described in more detail in Note 16 to our Consolidated Financial Statements in Part II, Item 8 of this Annual 
Report  on  Form  10-K.    Unfavorable  outcomes  in  any  legal  proceedings  involving  intellectual  property  could  result  in 
significant liabilities and could have a material adverse effect on our business, liquidity, results of operations, financial 
condition and cash flows.  The potential impact from the legal proceedings referred to in this Annual Report on Form 10-
K on our results of operations, financial condition and cash flows could change in the future.

Packaging  and  Test —  Packaging  and  Test  Processes  Are  Complex  and  Our  Production  Yields  and  Customer 
Relationships May Suffer from Defects in the Services We Provide.

Semiconductor  packaging  and  test  services  are  complex  processes  that  require  significant  technological  and  process 
expertise.  Defective packages primarily result from:

• 

• 

• 

• 

• 

• 

contaminants in the manufacturing environment;

human error;

equipment malfunction;

changing processes to address environmental requirements;

defective raw materials or

defective plating services.

Test is also complex and involves sophisticated equipment and software.  Similar to many software programs, these software 
programs are complex and may contain programming errors or “bugs.”  The test equipment is also subject to malfunction.  
In addition, the test process is subject to operator error.

These and other factors have, from time to time, contributed to lower production yields.  They may also do so in the future, 
particularly as we adjust our capacity or change our processing steps.  In addition, we must continue to expand our offering 
of packages to be competitive.  Our production yields on new packages typically are significantly lower than our production 
yields on our more established packages.

Our failure to maintain high standards or acceptable production yields, if significant and prolonged, could result in loss of 
customers, increased costs of production, delays, substantial amounts of returned goods and claims by customers relating 
thereto.  Any of these problems could have a material adverse effect on our business, liquidity, results of operations, financial 
condition and cash flows.

In addition, in line with industry practice, new customers usually require us to pass a lengthy and rigorous qualification 
process that may take several months.  If we fail to qualify packages with potential customers or existing customers, such 
failure could have a material adverse effect on our business, results of operations, financial condition and cash flows.

28

Competition — We Compete Against Established Competitors in the Packaging and Test Business as Well as Internal 
Customer Capabilities and May Face Competition from New Competitors.

The  outsourced  semiconductor  packaging  and  test  market  is  very  competitive.    We  face  substantial  competition  from 
established packaging and test service providers primarily located in Asia, including companies with significant processing 
capacity, financial resources, research and development operations, marketing and other capabilities.  These companies also 
have established relationships with many large semiconductor companies that are our current or potential customers.  We 
also face competition from the internal capabilities and capacity of many of our current and potential IDM customers.  In 
addition, we compete with companies (including semiconductor foundries) that provide wafer bumping and other advanced 
packaging solutions that compete with our packaging and test services.  For example, one of the major semiconductor 
foundries, which is substantially larger and has greater financial resources than we do, has expanded, and may continue to 
expand, its operations to include packaging and test services.

We cannot assure you that we will be able to compete successfully in the future against our existing or potential competitors 
or that our customers will not rely on internal sources for packaging and test services, or that our business, liquidity, results 
of operations, financial condition and cash flows will not be adversely affected by such increased competition.

Environmental  Regulations —  Future  Environmental  Regulations  Could  Place  Additional  Burdens  on  Our 
Manufacturing Operations.

The semiconductor packaging process uses liquid chemicals, gases and materials.  These processes generate by-products 
that are subject to extensive governmental regulations.  For example, at our foreign facilities we produce liquid waste when 
semiconductor wafers are diced into chips with the aid of diamond saws, then cooled with running water.  In addition, 
semiconductor packages have historically utilized metallic alloys containing lead (Pb) within the interconnect terminals 
typically referred to as leads, pins or balls.  Federal, state and local laws and regulations in the U.S., as well as environmental 
laws and regulations in foreign jurisdictions, impose various controls on the storage, handling, discharge and disposal of 
chemicals used in our production processes and on the factories we occupy and are increasingly imposing restrictions on 
the materials contained in semiconductor products.  We may become liable under environmental laws for the cost of cleanup 
of any disposal or release of hazardous materials arising out of our former or current operations, or otherwise as a result of 
the existence of hazardous materials on our properties.  In such an event, we could be held liable for damages, including 
fines, penalties and the cost of investigations and remedial actions, and could also be subject to revocation of permits 
negatively affecting our operations.

Public attention has focused on the environmental impact of semiconductor operations and the risk to neighbors of chemical 
releases from such operations and to the materials contained in semiconductor products.  For example, the European Union’s 
Restriction  of  Use  of  Certain  Hazardous  Substances  in  Electrical  and  Electronic  Equipment  Directive  imposes  strict 
restrictions on the use of lead and other hazardous substances in electrical and electronic equipment.  In response to this 
directive, and similar laws and developing legislation in countries like China, Japan and Korea, we have implemented 
changes in a number of our manufacturing processes in an effort to achieve compliance across all of our package types.  
Complying with existing and possible future environmental laws and regulations, including laws and regulations relating 
to climate change, may impose upon us the need for additional capital equipment or other process requirements, restrict 
our ability to expand our operations, disrupt our operations, increase costs, subject us to liability or cause us to curtail our 
operations.

Our Business and Financial Condition Could be Adversely Affected by Natural Disasters.

We have significant packaging and test and other operations in locations which are subject to natural disasters such as 
earthquakes, tsunamis, typhoons, floods and other severe weather and geological events that could disrupt our operations.  
In addition, our suppliers and customers also have significant operations in such locations.  A natural disaster that results 
in a prolonged disruption to our operations, or the operations of our customers or suppliers, could have a material adverse 
effect on our business, financial condition, results of operations and cash flows. For example, Japan experienced a severe 
earthquake and tsunami in 2011 that resulted in significant disruption in the electronics industry supply chain and adversely 
affected Japan's economy and consumer spending.  In addition, in October 2011, Thailand experienced substantial flooding 
which affected the facilities and operations of customers and suppliers in our industry.  As a result, our business, financial 

29

condition, results of operations and cash flows could be adversely affected by events such as those in Japan, Thailand or 
future natural disasters of a similar nature.

Fire, Flood or Other Calamity — With Our Operations Conducted in a Limited Number of Facilities, a Fire, Flood or 
Other Calamity at one of Our Facilities Could Adversely Affect Us.

We conduct our packaging and test operations at a limited number of facilities.  Significant damage or other impediments 
to any of these facilities, whether as a result of fire, flood, weather, the outbreak of infectious diseases (such as SARs or 
flu), civil strife, industrial strikes, breakdowns of equipment, difficulties or delays in obtaining materials and equipment, 
natural disasters, terrorist incidents, industrial accidents or other causes could temporarily disrupt or even shut down our 
operations, which would have a material adverse effect on our business, financial condition and results of operations.  In 
the event of such a disruption or shutdown, we may be unable to reallocate production to other facilities in a timely or cost-
effective manner (if at all) and we may not have sufficient capacity to service customer demands in our other facilities.  For 
example, our operations in Asia are vulnerable to regional typhoons that can bring with them destructive winds and torrential 
rains, which could in turn cause plant closures and transportation interruptions.  In addition, some of the processes that we 
utilize in our operations place us at risk of fire and other damage.  For example, highly flammable gases are used in the 
preparation of wafers holding semiconductor devices for flip chip packaging.  While we maintain insurance policies for 
various types of property, casualty and other risks, we do not carry insurance for all the above referred risks and with regard 
to the insurance we do maintain, we cannot assure you that it would be sufficient to cover all of our potential losses.

Continued Control By Existing Stockholders — Mr. James J. Kim and Members of His Family Can
Effectively Determine or Substantially Influence The Outcome of All Matters Requiring Stockholder Approval.

As of December 31, 2012, Mr. James J. Kim, our Executive Chairman of the Board of Directors, members of Mr. Kim’s 
immediate  family  and  affiliates  owned  approximately  87.9  million shares,  or  approximately  57%,  of  our  outstanding 
common stock.  The Kim family also has options to acquire approximately 1.0 million shares and owns $150.0 million of 
our 6.0% Convertible Senior Subordinated Notes due 2014 (the “2014 Notes”) that are convertible into approximately 49.6 
million shares of common stock (the “2014 Convert Shares”) at a conversion price of approximately $3.02 per share.  If 
the options are exercised and the 2014 Notes are converted, the Kim family would own an aggregate of approximately 138.5 
million shares, or approximately 68%, of our outstanding common stock.

The 2014 Convert Shares and the approximately 13.4 million shares issued upon conversion of the $100.0 million of our 
6.25% Convertible Subordinated Notes due 2013 (the "2013 Convert Shares") are each subject to separate voting agreements.  
The agreements require the Kim family to vote these respective shares in a “neutral manner” on all matters submitted to 
our stockholders for a vote, so that such 2013 Convert Shares and 2014 Convert Shares are voted in the same proportion 
as all of the other outstanding securities (excluding the other shares owned by the Kim family) that are actually voted on a 
proposal submitted to Amkor’s stockholders for approval.  The Kim family is not required to vote in a “neutral manner” 
any 2013 Convert Shares or 2014 Convert Shares that, when aggregated with all other voting shares held by the Kim family, 
represent 41.6% or less of the total then-outstanding voting shares of our common stock.  The voting agreement for the 
2013 Convert Shares terminates upon the earliest of (i) December 1, 2013, (ii) at such time as no principal amount of the 
2013 Notes or any 2013 Convert Shares remain outstanding, (iii) a change of control transaction (as defined in the voting 
agreement) or (iv) the mutual agreement of the Kim family and Amkor.  The voting agreement for the 2014 Convert Shares 
terminates upon the earliest of (i) such time as no principal amount of the 2014 Notes remains outstanding and the Kim 
family no longer beneficially own any of the 2014 Convert Shares, (ii) consummation of a change of control (as defined in 
the voting agreement) or (iii) the mutual agreement of the Kim family and Amkor.

Mr. James J. Kim and his family and affiliates, acting together, have the ability to effectively determine or substantially 
influence matters submitted for approval by our stockholders by voting their shares or otherwise acting by written consent, 
including the election of our Board of Directors.  There is also the potential, through the election of members of our Board 
of Directors, that the Kim family could substantially influence matters decided upon by our Board of  Directors.  This 
concentration  of  ownership  may  also  have  the  effect  of  impeding  a  merger,  consolidation,  takeover  or  other  business 
consolidation involving us, or discouraging a potential acquirer from making a tender offer for our shares, and could also 
negatively affect our stock’s market price or decrease any premium over market price that an acquirer might otherwise pay.

30

Item 1B. 

Unresolved Staff Comments

None.

Item 2. 

Properties

We provide packaging, test and development services at various facilities throughout China, Japan, Korea, the Philippines, 
Taiwan and the U.S.  The size, location and manufacturing services provided by each of our factories are set forth in the 
table below.

Location
Korea
Gwangju, Korea (1) . . . . . . . . . . . . . .
Seoul, Korea (1). . . . . . . . . . . . . . . . .
Pupyong, Korea (1) . . . . . . . . . . . . . .
Philippines

Muntinlupa, Philippines (2). . . . . . . .
Province of Laguna, Philippines (2) .
China

Shanghai, China (3) . . . . . . . . . . . . . .
Taiwan

Hsinchu, Taiwan (1) . . . . . . . . . . . . .
Lung Tan, Taiwan (1) . . . . . . . . . . . .
Japan

Kitakami, Japan (4) . . . . . . . . . . . . . .
United States

Approximate
Factory Size
(Square Feet)

Services

1,218,000

Packaging and test services; wafer bump services

698,000

404,000

749,000

625,000

Packaging services; package and process development

Packaging and test services

Packaging and test services; package and process development

Packaging and test services

993,000

Packaging and test services; wafer bump services

496,000

353,000

Packaging and test services; wafer bump services

Packaging and test services; wafer bump services

211,000

Packaging and test services

Chandler, AZ (4) . . . . . . . . . . . . . . . .

6,000

Package and process development

(1)  Owned facility and land.

(2)  As a result of foreign ownership restrictions in the Philippines, the land associated with our Philippine factories is 
leased from realty companies in which we own a 40% interest.  We own buildings comprising 1,223,000 square feet 
and lease the remaining 151,000 square feet from one of the aforementioned realty companies.

(3)  We own buildings comprising 993,000 square feet, of which approximately 738,000 square feet were facilitized as of 

December 31, 2012.  All land is leased.

(4)  Leased facility.

We previously owned a 165,000 square foot facility in Singapore (the land was leased) that was sold in June 2011.  See 
Note 19 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K.

We believe that our existing properties are in good condition and suitable for the conduct of our business and that the 
productive capacity of such properties is substantially being utilized or we have plans to utilize it.

Our principal executive office and operational headquarters is located in Chandler, Arizona.  In addition to executive staff, 
the Chandler, Arizona campus houses sales and customer service for the southwest region, product management, finance, 
information systems, planning and marketing.  Our marketing and sales office locations include sites in China, France, 
Japan,  Korea,  the  Philippines,  Singapore, Taiwan  and  the  U.S. (Chandler, Arizona;  Irvine,  San Diego  and  Santa Clara, 
California; Boston, Massachusetts and Dallas, Texas).

31

New Factory and Research and Development Center In Korea

We plan to build a new factory and research and development center in Korea.  This new factory and research and development 
center will focus on the design, development and full scale production of advanced and innovative semiconductor packaging 
and test services for the world's leading semiconductor and electronic manufacturing companies.  We have entered into an 
agreement to acquire the site for the new facility consisting of approximately 46 acres.  We expect to complete construction 
of the facility over the next several years.  The agreement to purchase the land for the facility is subject to our compliance 
with various construction, investment, hiring, regulatory and other requirements.  There can be no assurance that the new 
facility will proceed at all, or that the actual scope, costs, timeline or benefits of the project will be consistent with our 
current expectations.

Item 3. 

Legal Proceedings

From time to time, we are involved in various disputes and litigation matters that arise in the ordinary course of our business.  
These  include  disputes  and  lawsuits  related  to  intellectual  property,  acquisitions,  licensing,  contracts,  tax,  regulatory, 
employee relations and other matters.  For a discussion of “Legal Proceedings,” see Note 16 to our Consolidated Financial 
Statements in Part II, Item 8 of this Annual Report on Form 10-K.

Item 4. 

Submission of Matters to a Vote of Security Holders

None.

PART II

Item 5. 

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities

LISTING ON THE NASDAQ GLOBAL SELECT MARKET

Our common stock is traded on the NASDAQ Global Select Market under the symbol “AMKR.”  The following table sets 
forth, for the periods indicated, the high and low sale prices per share of our common stock as quoted on the NASDAQ 
Global Select Market.

High

Low

2012

First Quarter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2011

First Quarter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth Quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

6.78

6.25

5.58

4.60

8.49

7.00

6.59

5.17

There were approximately 154 holders of record of our common stock as of January 25, 2013.

DIVIDEND POLICY

$

$

4.46

4.29

4.36

3.65

6.30

5.64

3.81

4.06

Since our public offering in 1998, we have never paid a dividend to our stockholders and we do not have any present plans 
for doing so.  In addition, our secured bank debt agreements and the indentures governing our senior and senior subordinated 
notes limit our ability to pay dividends.  Refer to the Liquidity and Capital Resources Section in Item 7 of this Annual 
Report on Form 10-K.

32

RECENT SALES OF UNREGISTERED SECURITIES

None.

EQUITY COMPENSATION PLANS

The information required by this item regarding equity compensation plans is set forth in Part III, Item 12 of this Annual 
Report on Form 10-K.

PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

The  following  table  provides  information  regarding  repurchases  of  our  common  stock  during  the  three  months  ended 
December 31, 2012.  See Note 14 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 
10-K for further discussion.

Period

Total Number of
Shares Purchased (a)

Average Price
Paid Per
Share ($)

Total Number of
Shares Purchased as
part of Publicly
Announced Plans or
Programs (b)

Approximate Dollar
Value of Shares that
May Yet Be Purchased
Under the Plans or
Programs ($) (b)

October 1-October 31 . . . . . . . . . . . . . . . .
November 1-November 30 . . . . . . . . . . . .
December 1-December 31 . . . . . . . . . . . . .
Total. . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,362 $

11,167

1,716

15,245 $

4.44

4.03

4.32

4.13

— $

—

—

—

91,586,032

91,586,032

91,586,032

(a)  Represents shares of common stock surrendered to us to satisfy tax withholding obligations associated with the 

vesting of restricted shares issued to employees.

(b)  Our Board of Directors previously authorized the repurchase of up to $300.0 million of our common stock, $150.0 
million in August 2011 and $150.0 million in February 2012, exclusive of any fees, commissions or other expenses.  
During 2012, we purchased 16.5 million shares of common stock for an aggregate purchase price of $79.5 million, 
net of $0.3 million of commissions, for an average price of $4.83.  At December 31, 2012, approximately $91.6 
million was available to repurchase common stock pursuant to the stock repurchase program.

33

PERFORMANCE GRAPH(1)

(1)  The preceding Stock Performance Graph is not deemed filed with the Securities and Exchange Commission and shall 
not be incorporated by reference in any of our filings under the Securities Act of 1933 or the Securities Exchange Act 
of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language 
in any such filing.

34

Item 6. 

Selected Consolidated Financial Data

The following selected consolidated financial data as of December 31, 2012 and 2011, and for the years ended December 31, 
2012, 2011 and 2010, have been derived from our audited Consolidated Financial Statements included in this Annual Report 
on Form 10-K.  The following selected consolidated financial data as of December 31, 2010, 2009 and 2008, and for the 
years ended December 31, 2009 and 2008, have been derived from audited financial statements not included herein and, 
where applicable, such data was recast for the retrospective application of accounting guidance for noncontrolling interests 
in  a  consolidated  subsidiary,  which  we  became  subject  to  beginning  January 1,  2009.    You  should  read  the  selected 
consolidated financial data in conjunction with Management’s Discussion and Analysis of Financial Condition and Results 
of Operations and our Consolidated Financial Statements, both of which are included in this Annual Report on Form 10-
K.

SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA

For the Year Ended December 31,

2012

2011

2010

2009

2008

(In thousands, except per share data)

Statement of Operations Data:

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

2,759,546

$

2,776,359

$

2,939,483

$

2,179,109

$

2,658,602

Cost of sales (a). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,335,736

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

423,810

2,285,790

490,569

2,275,727

663,756

1,698,713

480,396

2,096,864

561,738

Operating expenses:

Selling, general and administrative. . . . . . . . . . . . . . . . . . . . . . .

Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Goodwill impairment (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gain on sale of real estate and specialty test operations (c) . . . .

Total operating expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other expense (income):

Interest expense (a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Interest expense, related party. . . . . . . . . . . . . . . . . . . . . . . . . . .

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Foreign currency loss (gain) (d) . . . . . . . . . . . . . . . . . . . . . . . . .

Loss (gain) on debt retirement, net (e) . . . . . . . . . . . . . . . . . . . .

Equity in earnings of unconsolidated affiliates (f) . . . . . . . . . . .

Other income, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total other expense, net . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income (loss) before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . .

Income tax expense (benefit) (g) . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net (income) loss attributable to noncontrolling interests . . . . . . . .

217,000

54,118

—

—

271,118

152,692

83,974

13,969

(3,160)

4,185

1,199

(5,592)

(1,586)

92,989

59,703

17,001

42,702

(884)

Net income (loss) attributable to Amkor. . . . . . . . . . . . . . . . . . . . . . $

41,818

Net income (loss) attributable to Amkor per common share:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

Diluted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

0.26

0.24

$

$

$

Shares used in computing per common share amounts:

246,555

50,386

—

(42)

296,899

193,670

74,212

12,394

(2,749)

2,178

15,531

(7,085)

(1,030)

93,451

100,219

7,124

93,095

(1,287)

91,808

0.48

0.39

$

$

$

242,424

47,534

—

—

289,958

373,798

85,595

15,250

(2,950)

13,756

18,042

(6,435)

(619)

122,639

251,159

19,012

232,147

(176)

231,971

1.26

0.91

$

$

$

210,907

44,453

—

(281)

255,079

225,317

102,396

13,000

(2,367)

3,339

(15,088)

(2,373)

(113)

98,794

126,523

(29,760)

156,283

(303)

155,980

0.85

0.67

$

$

$

Basic (h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

160,105

243,004

190,829

273,686

183,312

282,602

183,067

263,379

Other Financial Data:

Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . $

370,479

$

335,644

$

323,608

$

305,510

$

Purchases of property, plant and equipment . . . . . . . . . . . . . . . .

533,512

466,694

445,669

173,496

251,756

56,227

671,117

(9,856)

969,244

(407,506)

118,729

6,250

(8,749)

(61,057)

(35,987)

—

(1,004)

18,182

(425,688)

31,788

(457,476)

781

(456,695)

(2.50)

(2.50)

182,734

182,734

309,920

386,239

35

2012

2011

2010

2009

2008

Year Ended December 31,

(In thousands)

Balance Sheet Data:

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

413,048

$

434,631

$

404,998

$

395,406

$

Working capital. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total debt, including short-term borrowings and current

portion of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional paid-in capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accumulated deficit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total Amkor stockholders’ equity. . . . . . . . . . . . . . . . . . . . . . . .

438,781

3,025,215

1,545,000

1,545,000

1,614,143

(756,644)

657,955

354,644

2,773,047

1,287,256

1,346,651

1,611,242

(798,462)

693,266

_______________________________________

289,859

2,736,822

1,214,219

1,364,300

1,504,927

327,088

2,432,909

1,345,241

1,434,185

1,500,246

424,316

306,174

2,383,993

1,438,751

1,493,360

1,496,976

(890,270)

(1,122,241)

(1,278,221)

630,013

383,209

237,139

(a)  During 2012, we recorded a charge of $50.0 million to cost of sales and $6.0 million to interest expense relating to our 
pending patent license arbitration.  During 2008, we recorded a charge of $61.4 million to cost of sales and $3.3 million 
to interest expense related to a prior patent license dispute, of which $49.0 million related to royalties for periods prior 
to 2008.

(b)  At December 31, 2008, we recorded a non-cash charge of $671.1 million to write off our remaining goodwill.

(c)  During 2011, we sold real property in Singapore used for operations that were exited as of December 31, 2010.  The 
gain on the sale of the real property was less than $0.1 million.  During 2009, we sold land and dormitory buildings in 
Korea and recorded a gain of $0.3 million.  During 2008, we sold land and a warehouse in Korea and recorded a gain 
of $9.9 million.  

(d)  We recognize foreign currency losses (gains) due to the remeasurement of certain of our foreign currency denominated 
monetary assets and liabilities.  During 2008, the net foreign currency gain of $61.1 million is primarily attributable 
to  the  significant  depreciation  of  the  Korean  won  and  the  impact  on  the  remeasurement  of  our  Korean  severance 
obligation.

(e)  During 2012, we recorded a net loss of $1.2 million related to the repayment of subsidiary debt with the proceeds from 
the issuance of $300.0 million of our 6.375% Senior Notes due 2022.  During 2011, we recorded a net loss of $15.5 
million related to the tender and call of our 9.25% Senior Notes due 2016 and the write-off of the associated unamortized 
deferred debt issuance costs.  During 2010, we recorded a net loss of $18.0 million related to several debt transactions.  
These transactions included recording a net loss of $17.7 million related to the tender offer to purchase $125.7 million 
principal amount of our 9.25% Senior Notes due 2016 and the repurchase of an aggregate $411.8 million principal 
amount of our 7.125% Senior Notes due in 2011 and our 7.75% Senior Notes due in 2013.  During 2009, we recorded 
a  net  gain  of  $15.1 million  related  to  the  repurchase  of  an  aggregate  $289.3 million  principal  amount  of  our 
7.125% Senior Notes and 2.5% Convertible Senior Subordinated Notes due in 2011 and our 7.75% Senior Notes due 
in 2013.  During 2008, we recorded a gain of $36.0 million related to the repurchase of an aggregate $118.3 million 
principal amount of our 7.125% senior notes and 2.5% convertible senior subordinated notes due 2011.

(f)  During 2009, we made a 30% equity investment in J-Devices, which was accounted for using the equity method.  

(g)  Generally, our effective tax rate is substantially below the U.S. federal tax rate of 35% because we have experienced 
taxable losses in the U.S. and our income is taxed in foreign jurisdictions where we benefit from tax holidays or tax 
rates lower than the U.S. statutory rate.  In 2009, a $25.6 million benefit for the release of a valuation allowance in 
Korea was included in the income tax benefit.  In 2008, the $671.1 million goodwill impairment charge did not have 
a  significant  income  tax  benefit.   Also,  the  2008  income  tax  provision  included  a  charge  of  $8.3 million  for  the 
establishment of a valuation allowance in Japan.

(h)  In 2012, we repurchased 16.5 million shares under the Stock Repurchase Program.  In 2011, we repurchased 28.6 
million shares under the Stock Repurchase Program.  In addition, the entire $100.0 million aggregate principal amount 
of the December 2013 Notes was converted into 13.4 million shares of common stock.  

36

Item 7. 

Management’s Discussion and Analysis of Financial Condition and Results of Operations

This report contains forward-looking statements within the meaning of the federal securities laws, including but not limited 
to statements regarding: (1) the amount, timing and focus of our expected capital investments, including expenditures in 
2013 and beyond for a new facility in Korea (2) our ability to fund our operating activities for the next twelve months, 
(3) the effect of capacity utilization rates on our gross margin, (4) the expiration of tax holidays in jurisdictions in which 
we operate and expectations regarding our effective tax rate, (5) the release of valuation allowances related to taxes in the 
future, (6) the expected use of future cash flows, if any, for the expansion of our business, capital expenditures, the repayment 
of debt and for other corporate purposes, (7) funding for any payments due in conjunction with our litigation with Tessera, 
(8) our repurchase or repayment of outstanding debt or the conversion of debt in the future, (9) payment of dividends, 
(10) compliance with our covenants, (11) expected contributions to foreign pension plans, (12) liability for unrecognized 
tax benefits, (13) the effect of foreign currency exchange rate exposure on our financial results, (14) the volatility of the 
trading price of our common stock, (15) changes to our internal controls related to implementation of our enterprise resource 
planning (“ERP”) system and other systems and (16) other statements that are not historical facts.  In some cases, you can 
identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” 
“believes,” “estimates,” “predicts,” “potential,” “continue,” “intend” or the negative of these terms or other comparable 
terminology.    Because  such  statements  include  risks  and  uncertainties,  actual  results  may  differ  materially  from  those 
anticipated in  such  forward-looking  statements  as  a  result  of  certain  factors,  including  those  set  forth  in  the  following 
discussion as well as in Part I, Item 1A of this Annual Report on Form 10-K.  The following discussion provides information 
and analysis of our results of operations for the three years ended December 31, 2012 and our liquidity and capital resources.  
You should read the following discussion in conjunction with Part II, Item 8 in this Annual Report on Form 10-K as well 
as other reports we file with the Securities and Exchange Commission (“SEC”).

Overview

Amkor is one of the world’s leading providers of outsourced semiconductor packaging and test services.  Packaging and 
test are integral steps in the process of manufacturing semiconductor devices.  The semiconductor manufacturing process 
begins with the fabrication of individual transistors, or multiple transistors and other electronic elements combined into an 
integrated circuit (generally known as a “chip” or “die”), onto semiconductor material such as a silicon wafer.  Each chip 
on the wafer is probe tested.  The good chips are identified and the wafer is then separated into individual die.  Each good 
die is then assembled into a package that typically encapsulates the die for protection and creates the electrical connections 
used to connect the package to a printed circuit board, module or other part of the electronic device.  In some packages, 
chips are attached to a substrate or leadframe carrier through wirebonding or flip chip interconnects and then encased in a 
protective material.  Or, for a wafer-level package, the electrical interconnections are created directly on the surface of the 
die (while the wafer is still intact) so that the chip may be attached directly to other parts of an electronic device without a 
substrate or leadframe.  The packages are then tested using sophisticated equipment to ensure that each packaged chip meets 
its design and performance specifications.  The test services we offer include probe testing and final testing.

Our packaging services are designed to meet application and chip specific requirements including the type of interconnect 
technology employed; size; thickness and electrical, mechanical and thermal performance.  We are able to provide turnkey 
packaging and test services including semiconductor wafer bump, wafer probe, wafer backgrind, package design, packaging, 
test and drop shipment services.

Our customers include, among others: Altera Corporation; Analog Devices, Inc.; Broadcom Corporation; Intel Corporation; 
LSI Corporation; Qualcomm Incorporated; Sony Corporation; STMicroelectronics N.V.; Texas Instruments Incorporated 
and Toshiba Corporation.  The outsourced semiconductor packaging and test market is very competitive.  We also compete 
with the internal semiconductor packaging and test capabilities of many of our customers.

Our business is impacted by market conditions in the semiconductor industry, which is cyclical by nature and impacted by 
broad economic factors, such as world-wide gross domestic product and consumer spending.  Historical trends indicate 
there has been a strong correlation between world-wide gross domestic product levels, consumer spending and semiconductor 
industry cycles.  The semiconductor industry has experienced significant and sometimes prolonged cyclical downturns in 
the past.  We cannot predict the timing, strength or duration of any economic slowdown or subsequent economic recovery.

37

Our  net  sales,  gross  profit,  operating  income,  cash  flows,  liquidity  and  capital  resources  have  historically  fluctuated 
significantly from quarter to quarter as a result of many factors, including the seasonality of our business, the cyclical nature 
of the semiconductor industry and other factors discussed in Part 1, Item 1A of this Annual Report on Form 10-K.

Our net sales decreased $16.8 million or 0.6% to $2,759.5 million in 2012 from $2,776.4 million in 2011.  The decrease 
was driven by a decline of $54.7 million or 2.2% in packaging net sales partially offset by an increase in test net sales of 
$38.0 million or 13.4%.  The decrease in packaging net sales was primarily the result of weakness in the consumer, networking 
and auto and industrial end markets, partially offset by strength in the communications end market for smartphones and 
tablets.  The increase in test net sales was primarily driven by strength in the communications end market for smartphones 
and tablets.

Gross margin for 2012 decreased to 15.4% from 17.7% in 2011.  The decrease in gross margin was primarily due to weakness 
in  demand  for  some  of  our  wirebond  packaging  services  and  the  corresponding  lower  level  of  utilization  of  these 
manufacturing  assets,  the  estimated  $50.0  million  loss  contingency  charge  resulting  from  our  pending  patent  license 
arbitration with Tessera and lower net sales due to insourcing by some of our integrated device manufacturer ("IDM") 
customers.  The loss contingency charge reduced our gross margin by two percentage points.  The decreases were partially 
offset by increased net sales of flip chip and wafer level packages, as well as increased test net sales supporting mobile 
communications.

We operate in a capital intensive industry and have a significant level of debt.  Servicing our current and future customers 
requires  that  we  incur  significant  operating  expenses  and  continue  to  make  significant  capital  expenditures,  which  are 
generally made in advance of the related revenues and without any firm customer commitments.  We fund our operations, 
including  capital  expenditures  and  debt  service  requirements,  with  cash  flows  from  operations,  existing  cash  and  cash 
equivalents,  borrowings  under  available  credit  facilities,  and  proceeds  from  any  additional  financing.    Maintaining  an 
appropriate level of liquidity is important to our business and depends on, among other things, the performance of our 
business, our capital expenditure levels and our ability to repay debt out of our operating cash flows or proceeds from debt 
or equity financings.

In 2012, our capital additions totaled $533.2 million or 19.3% of net sales compared to $453.0 million or 16.3% of net sales 
in 2011.  Our 2012 capital additions were driven by investments in advanced test platforms and packaging equipment 
supporting the communications end market, as well as research and development projects.  In 2012, 42.2% of our capital 
additions were made in packaging, 39.9% for test and 17.9% for research and development and infrastructure projects.  In 
2011, 60.9% of our capital additions were made in packaging, 22.5% for test and 16.6% for research and development and 
infrastructure projects.

Net cash provided by operating activities was $389.1 million for the year ended December 31, 2012, compared to $516.8 
million for the year ended December 31, 2011.  We experienced negative free cash flow of $144.4 million for the year ended 
December 31, 2012, compared to free cash flow of $50.1 million in the prior year.  Our negative free cash flow was primarily 
driven by capital purchases to support customer demand for packaging and test services related to mobile communications 
and an increase in accounts receivable.  We define free cash flow as net cash provided by operating activities less purchases 
of property, plant and equipment.  Free cash flow is not defined by U.S generally accepted accounting principles (“U.S. 
GAAP”), and a reconciliation of free cash flow to net cash provided by operating activities is set forth under the caption 
“Cash Flows” below.

38

Results of Operations

The following table sets forth certain operating data as a percentage of net sales for the periods indicated:

Year Ended December 31,

2012

2011

2010

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gross margin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net income attributable to Amkor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.0%

15.4%

13.4%

5.5%

2.2%

1.5%

100.0%

17.7%

12.1%

7.0%

3.6%

3.3%

100.0%

22.6%

11.0%

12.7%

8.5%

7.9%

Net Sales

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Net sales . . . . . . . . . . . . . . . $ 2,759,546

$ 2,776,359

$ 2,939,483

$

Packaging net sales . . . . . . .

2,438,572

2,493,283

2,650,257

Test net sales. . . . . . . . . . . .

320,974

282,942

288,871

(16,813)

(54,711)

38,032

(0.6)% $

(163,124)

(2.2)%

13.4 %

(156,974)

(5,929)

(5.5)%

(5.9)%

(2.1)%

Net Sales.  Net sales in 2012 decreased compared to 2011 due to lower net sales of our packaging services.  The decrease 
in packaging net sales was partially offset by an increase in test net sales.

Net sales in 2011 decreased compared to 2010 primarily as a result of lower net sales of our packaging and test services.  
Net sales for the year ended December 31, 2011, were also negatively impacted by the supply chain disruptions in Japan 
caused by the March 2011 earthquake and tsunami.

Packaging Net Sales.  Packaging net sales in 2012 decreased compared to 2011.  The decrease in packaging net sales was 
the result of weakness in the consumer, networking and auto and industrial end markets.  In particular, packaging net sales 
related to home electronics and gaming were lower than historical levels due to insourcing by some of our IDM customers 
and  lower  demand  for  our  wirebond  packaging  services.    These  decreases  were  partially  offset  by  strength  in  the 
communications end market for smartphones and tablets.  Packaging unit volume increased 0.4 billion units in 2012 to 8.5 
billion units, compared to 8.1 billion units in 2011, primarily due to increases in wafer level and flip chip chip scale packaging 
services, partially offset by decreases in wirebond array and leadframe packaging services.

Packaging net sales in 2011 decreased compared to 2010.  The decrease in packaging net sales was primarily driven by 
weakness in sales of our ball grid array and leadframe packaging solutions partially offset by strong sales of our chip scale 
packaging solutions supporting mobile communications products.  Packaging unit volume decreased 1.7 billion units in 
2011 to 8.1 billion units, compared to 9.8 billion units in 2010, primarily attributable to decreased demand for our leadframe 
packaging solutions.

Test Net Sales.  Test net sales in 2012 increased compared to 2011 due to strong demand for mobile communications products, 
such as smartphones and tablets.  Test net sales in 2011 decreased compared to 2010 primarily as a result of decreased 
demand from the computing and consumer end markets partially offset by increased test services for mobile communications 
products.

39

Cost of Sales

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Cost of sales . . . . . . . . . . . . $ 2,335,736

$ 2,285,790

$ 2,275,727

$

49,946

2.2% $

10,063

0.4%

Our cost of sales consists principally of materials, labor, depreciation and manufacturing overhead.  Since a substantial 
portion of the costs at our factories is fixed, relatively modest increases or decreases in capacity utilization rates can have 
a significant effect on our gross margin.

Material costs as a percentage of net sales decreased to 43.2% in 2012 from 44.1% in 2011 as a result of higher test net 
sales, which consume few materials, and a shift to a mix of packaging services with a lower material content as a percentage 
of net sales.  Material costs in absolute dollars primarily decreased in 2012 due to the net sales mix described above and 
lower net sales.  Material costs as a percentage of net sales increased to 44.1% in 2011 from 42.6% in 2010 primarily due 
to the increased cost of gold that is used in most of our wirebond packaging solutions.  Material costs in absolute dollars 
decreased in 2011 as a result of the decline in net sales.

As a percentage of net sales, labor costs decreased to 14.3% in 2012 from 14.6% in 2011.  The decrease in labor costs as a 
percentage of net sales and in absolute dollars was primarily driven by labor cost savings from restructuring activities at 
our manufacturing operations in Japan in early 2012 and the Philippines in 2011.  As a percentage of net sales, labor costs 
increased to 14.6% in 2011 from 12.7% in 2010.  The increase in labor costs as a percentage of net sales was primarily the 
result of lower levels of utilization driven by decreased customer demand and the corresponding decrease in net sales.  As 
substantially all of our manufacturing workforce is paid in Asian currencies, labor costs were also negatively impacted by 
the appreciation of certain Asian based currencies against the U.S. dollar in 2011 compared to 2010.  In addition, labor wage 
rates increased in 2011 and the year also includes a $7.7 million charge for workforce reduction programs at our Philippine 
manufacturing operations compared to a $3.7 million workforce reduction charge in 2010.

Other manufacturing costs as a percentage of net sales increased to 27.1% in 2012 from 23.6% in 2011.  The increase as a 
percentage of sales and in absolute dollars was primarily attributable to the estimated $50.0 million loss contingency charge 
resulting from our pending patent license arbitration with Tessera and increased depreciation expense from our continued 
investment in property, plant and equipment.  Other manufacturing costs as a percentage of net sales increased to 23.6% in 
2011 from 22.1% in 2010.  Other manufacturing costs in 2011 increased as a percentage of net sales primarily as a result 
of lower levels of utilization driven by decreased customer demand and the corresponding decrease in net sales.  The increase 
in other manufacturing costs in absolute dollars in 2011 was primarily attributable to the appreciation of certain Asian based 
currencies  against  the  U.S.  dollar  and  increased  depreciation  from  our  continued  investments  in  property,  plant  and 
equipment.  These costs were partially offset by overhead cost savings from the closure of our Singapore manufacturing 
operations.  

Gross Profit

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

423,810

$

490,569

$

663,756

$

(66,759)

$

(173,187)

Gross margin . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15.4%

17.7%

22.6%

(2.3)%

(4.9)%

Gross profit and gross margin in 2012 decreased compared to 2011.  The decrease in gross profit and gross margin was 
primarily due to weakness in demand for some of our wirebond packaging services and the corresponding lower level of 
utilization of these manufacturing assets, the estimated $50.0 million loss contingency charge resulting from our pending 
patent license arbitration with Tessera and lower net sales due to insourcing by some of our IDM customers.  These decreases 
were partially offset by increased net sales of flip chip and wafer level packages as well as increased test net sales supporting 
mobile communications.

40

Gross profit and gross margin in 2011 decreased compared to 2010.  The decrease was primarily due to weakness in demand 
for some of our packaging solutions and the corresponding lower level of utilization of our manufacturing assets.  The 
market migration from wirebond to flip chip products created underutilized wirebond capacity faster than we were able to 
redeploy these assets, which was one of the primary contributors to our 2011 decrease in utilization.  Gross margin was also 
negatively impacted by the appreciation of certain Asian based currencies against the U.S. dollar, the increased cost of gold 
that is used in most of our wirebond packages, increased depreciation expense as a result of our continued investment in 
property, plant and equipment and charges for workforce reduction programs at our Philippine manufacturing operations.

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Packaging gross profit . . . . . . . . . . . . . . . . . . . . . . $

334,968

$

425,878

$

584,190

$

(90,910)

$

(158,312)

Packaging gross margin. . . . . . . . . . . . . . . . . . . . .

13.7%

17.1%

22.0%

(3.4)%

(4.9)%

Packaging Gross Profit.  Gross profit and gross margin for packaging net sales in 2012 decreased compared to 2011.  The 
decreases in gross profit and gross margin were primarily due to weakness in demand for some of our wirebond packaging 
services and the corresponding lower level of utilization of these manufacturing assets, the Tessera loss contingency charge 
discussed above, which relates entirely to the packaging segment, and lower net sales due to insourcing by some of our 
IDM customers.  These decreases were partially offset by increased net sales of flip chip and wafer level packages supporting 
mobile communications.

Gross profit and gross margin for packaging sales in 2011 decreased compared to 2010.  The decrease in gross profit and 
gross margin was attributable to weakness in demand for some of our packaging solutions and the corresponding lower 
level of utilization of our manufacturing assets.  The market migration of wirebond to flip chip products created underutilized 
wirebond capacity faster than we were able to redeploy these assets, which was one of the primary contributors to our 2011 
decrease in utilization.  Gross margin was also negatively impacted by the appreciation of certain Asian based currencies 
against the U.S. dollar, the increased cost of gold that is used in most of our wirebond packages, increased depreciation 
expense as a result of our continued investment in property, plant and equipment and charges for workforce reduction 
programs at our Philippine manufacturing operations.

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Test gross profit. . . . . . . . . . . . . . . . . . . . . . . . . . . $

88,842

$

65,719

$

79,621

$

23,123

$

(13,902)

Test gross margin. . . . . . . . . . . . . . . . . . . . . . . . . .

27.7%

23.2%

27.6%

4.5%

(4.4)%

Test Gross Profit.  Gross profit and gross margin for test sales in 2012 increased compared to 2011.  The increases in gross 
profit and gross margin were mainly attributable to higher utilization of our test assets and higher test net sales.  Costs of 
sales for test services are primarily fixed in nature and have relatively low material content.  Accordingly, increases in net 
sales or utilization generally result in increased gross profit and gross margin due to the high degree of operating leverage 
for these services.  Gross profit and gross margin for test sales in 2011 decreased compared to 2010.  The decrease in gross 
profit and gross margin was primarily driven by lower utilization of our test assets as well as higher labor costs and increased 
depreciation expense as a result of our continued investment in property, plant and equipment.

Selling, General and Administrative Expenses

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Selling, general and

administrative . . . . . . . . $

217,000

$

246,513

$

242,424

$

(29,513)

(12.0)% $

4,089

1.7%

41

Selling, general and administrative expenses decreased in 2012 compared to 2011.  The decrease was primarily the result 
of reduced employee compensation expense and lower professional fees, partially offset by charges from our restructuring 
activities in 2012.  Selling, general and administrative expenses in 2011 increased compared to 2010.  The increase was 
mainly attributable to increased professional fees and, to a lesser extent, higher employee compensation and benefits primarily 
due to merit increases and share-based compensation.  These increases were offset by lower contracted services in 2011 for 
the continued implementation of our global enterprise resource planning information system.

Research and Development

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Research and development

$

54,118

$

50,386

$

47,534

$

3,732

7.4% $

2,852

6.0%

Research and development activities are focused on developing new packaging interconnect and test services and improving 
the efficiency and capabilities of our existing production processes.  Areas of focus include 3D packaging, including silicon 
interposers and Through Silicon Via technologies, fine pitch copper pillar packaging and wafer level processing.

Research and development expenses in 2012 increased compared to 2011 in both absolute dollars and as a percentage of 
net sales.  Research and development expenses represented 2.0% of net sales in 2012 compared to 1.8% of net sales in 2011.  
The increase in research and development expenses was driven by increased depreciation from capital additions as a result 
of our continued investment in research and development initiatives.  Research and development expenses in 2011 increased 
compared to 2010.  The increase in research and development expenses was primarily attributable to increased employee 
salary expenses.  As a percentage of net sales, research and development expenses increased to 1.8% in 2011 compared to 
1.6% in 2010 due to lower net sales and the increased research and development expenses.

Other Expense, Net

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Interest expense, net . . . . . . $

94,783

$

83,857

$

97,895

$

Foreign currency loss . . . . .

Loss on debt retirement, net

Equity in earnings of

unconsolidated affiliate.

Other income, net . . . . . . . .

4,185

1,199

(5,592)

(1,586)

2,178

15,531

(7,085)

(1,030)

13,756

18,042

(6,435)

(619)

Total other expense, net. $

92,989

$

93,451

$

122,639

$

10,926

2,007

13.0 % $

(14,038)

(14.3)%

92.1 %

(11,578)

(84.2)%

(14,332)

(92.3)%

(2,511)

(13.9)%

1,493

(21.1)%

54.0 %

(556)

(462)

(650)

(411)

10.1 %

66.4 %

(0.5)% $

(29,188)

(23.8)%

Interest expense in 2012 increased compared to 2011 due to $6.0 million of estimated interest related to our pending patent 
license arbitration with Tessera and higher levels of debt.  Interest expense in 2011 decreased compared to 2010 primarily 
due to debt refinanced at lower interest rates and the conversion of our 6.25% Convertible Notes due 2013 into common 
stock.  In 2012, we incurred a $1.2 million loss on debt retirement associated with the prepayment of certain subsidiary 
term loans due in 2014 and 2016.  In 2011, we recorded a $15.5 million loss on debt retirement due to the refinancing of 
our 2.5% Convertible Senior Subordinated Notes due May 2011 and the full redemption of our 9.25% Senior Notes due 
2016.  In 2010, we recorded $18.0 million of debt retirement costs as a result of the redemption of the 7.125% Senior Notes 
due 2011 and the 7.75% Senior Notes due 2013.

42

Income Tax Expense

2012

2011

2010

2012 over 2011

2011 over 2010

(In thousands, except percentages)

Change

Income tax expense. . . . . . . $

17,001

$

7,124

$

19,012

$

9,877

138.6% $

(11,888)

(62.5)%

Generally, our effective tax rate is substantially below the U.S. federal tax rate of 35% because we have experienced tax 
losses in the U.S. and much of our income is taxed in foreign jurisdictions where we benefit from tax holidays or tax rates 
lower than the U.S. statutory rate.  Income tax expense in 2012 and 2011 is attributable to income tax on profits earned in 
certain foreign jurisdictions, foreign withholding taxes, minimum taxes, and deferred taxes on undistributed earnings from 
our investment in J-Devices.  The increase in income tax expense in 2012 compared to 2011 is attributable to the increase 
in income tax rates in jurisdictions where tax holidays have partially expired, taxation in a jurisdiction that previously 
benefited from a net operating loss carryforward and taxation of foreign currency gains in connection with debt denominated 
in US dollars in a foreign jurisdiction.  Income tax expense in 2010 is attributable to income tax on profits earned in certain 
of  our  taxable  foreign  jurisdictions,  $5.4  million  of  net  additions  to  estimates  of  our  uncertain  tax  positions,  foreign 
withholding taxes and minimum taxes partially offset by a $3.0 million income tax benefit from the release of a valuation 
allowance related to certain deferred tax assets in Taiwan.

During 2012, our subsidiaries in China, Korea, the Philippines and Taiwan operated under tax holidays which will continue 
to expire in whole or in part at various dates through 2017.  We expect our effective tax rate to increase as the tax holidays 
expire, as income earned in these jurisdictions will be subject to higher statutory income tax rates.  In connection with our 
land purchase in Korea in February 2013, we intend to increase our capital in Korea within three years by at least $100 
million through foreign investment pursuant to the Foreign Investment Promotion Act, thereby, availing ourselves of certain 
additional tax incentives.  See Note 4 to our Consolidated Financial Statements included in Part II, Item 8 of this Annual 
Report on Form 10-K for further discussion of income tax holidays.

At December 31, 2012, we had U.S. net operating loss carryforwards totaling $363.9 million which expire at various times 
through 2031.  Additionally, at December 31, 2012, we had $56.4 million of non-U.S. net operating loss carryforwards, 
which will expire at various times through 2022.  We maintain a valuation allowance on all of our U.S. net deferred tax 
assets, including our net operating loss carryforwards, and on deferred tax assets in certain foreign jurisdictions.  We will 
release such valuation allowances as the related tax benefits are realized on our tax returns or when sufficient net positive 
evidence exists to conclude that it is more likely than not that the deferred tax assets will be realized.  As the trend of taxable 
operating results in one of our foreign jurisdictions has been improving over the past year, we believe a reasonable possibility 
exists that, within the next year, sufficient positive evidence may become available to reach a conclusion to release up to 
$12.1 million of the valuation allowance maintained in this jurisdiction as of December 31, 2012.

43

Quarterly Results

The following table sets forth our unaudited consolidated financial data for the last eight quarters ended December 31, 2012.  
Our results of operations have varied and may continue to vary from quarter to quarter and are not necessarily indicative 
of the results of any future period.

We believe that we have included all adjustments, consisting only of normal recurring adjustments necessary for a fair 
statement of our selected quarterly data.  You should read our selected quarterly data in conjunction with our Consolidated 
Financial Statements and the related notes, included in Part II, Item 8 of this Annual Report on Form 10-K.

Our net sales, gross profit and operating income are generally lower in the first quarter of the year as compared to the fourth 
quarter  of  the  preceding  year  primarily  due  to  the  effect  of  consumer  buying  patterns  in  the  U.S.,  Europe  and Asia.  
Semiconductor companies generally reduce their production during the holidays at the end of December which results in a 
reduction in demand for packaging and test services during the first two weeks of January.

We recorded a charge of $30.0 million to cost of sales and $4.0 million to interest expense during the three months ended 
June 30, 2012, and an additional charge of $20.0 million to cost of sales and $2.0 million to interest expense during the 
three months ended December 31, 2012, related to our pending patent license arbitration.

The calculation of basic and diluted per share amounts for each quarter is based on the weighted average shares outstanding 
for that period; consequently, the sum of the quarters may not necessarily be equal to the full year basic and diluted net 
income per share.

For the Quarter Ended

Dec. 31,
2012

Sept. 30,
2012

June 30,
2012

Mar. 31,
2012

Dec. 31,
2011

Sept. 30,
2011

June 30,
2011

Mar. 31,
2011

(In thousands, except per share data)

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 722,656

$ 695,353

$ 686,527

$ 655,010

$ 683,769

$ 740,007

$ 687,633

$ 664,950

Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . .

609,934

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . .

112,722

578,566

116,787

597,207

89,320

550,029

104,981

571,942

111,827

617,768

122,239

557,816

129,817

538,264

126,686

Operating expenses:

Selling, general and administrative . . . . . .

Research and development . . . . . . . . . . . .

Total operating expenses . . . . . . . . . . .

Operating income. . . . . . . . . . . . . . . . . . . . . . .

Other expense, net . . . . . . . . . . . . . . . . . . . . . .

Income before income taxes . . . . . . . . . . . . . .

Income tax expense (benefit) . . . . . . . . . . . . . .

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net (income) loss attributable to

noncontrolling interests. . . . . . . . . . . . . . .
Net income attributable to Amkor . . . . . . . . . . $

Net income attributable to Amkor per 

common share:
Basic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

Liquidity and Capital Resources

56,959

13,354

70,313

42,409

26,745

15,664

7,992

7,672

49,297

13,472

62,769

54,018

21,904

32,114

9,538

22,576

53,489

13,867

67,356

21,964

24,983

(3,019)

(3,891)

872

57,255

13,425

70,680

34,301

19,357

14,944

3,362

11,582

55,660

12,465

68,125

43,702

20,492

23,210

(2,351)

25,561

65,011

13,233

78,244

43,995

14,173

29,822

2,499

27,323

61,284

12,559

73,843

55,974

37,935

18,039

3,594

14,445

64,558

12,129

76,687

49,999

20,851

29,148

3,382

25,766

(526)

(259)

(291)

192

(711)

44

43

(663)

7,146

$ 22,317

$

581

$ 11,774

$ 24,850

$ 27,367

$ 14,488

$ 25,103

0.05

0.05

$

$

0.14

0.11

$

$

— $

— $

0.07

0.06

$

$

0.14

0.11

$

$

0.14

0.11

$

$

0.07

0.07

$

$

0.13

0.10

We assess our liquidity based on our current expectations regarding sales, operating expenses, capital spending and debt 
service requirements.  Based on this assessment, we believe that our cash flow from operating activities, together with 
existing cash and cash equivalents and availability under our debt facilities, will be sufficient to fund our working capital, 
capital expenditure and debt service requirements for at least the next twelve months.  Thereafter, our liquidity will continue 
to be affected by, among other things, volatility in the global economy and credit markets, the performance of our business, 
our capital expenditure levels, other uses of our cash including the final amount of payments due in our disputes with Tessera, 
any purchases of stock under our stock repurchase program, any investments in joint ventures or acquisitions and our ability 
to either repay debt out of operating cash flows or proceeds from debt or equity financings.  In light of possible investment 

44

opportunities, we are exploring additional lines of credit of approximately $300 million.  There can be no assurance that 
we will generate the necessary net income or operating cash flows, or be able to borrow sufficient funds, to meet the funding 
needs  of  our  business  beyond  the  next  twelve  months  due  to  a  variety  of  factors,  including  the  cyclical  nature  of  the 
semiconductor industry and other factors discussed in Part I, Item 1A of this Annual Report on Form 10-K.

Our primary source of cash and the source of funds for our operations are cash flows from our operations, existing cash 
and cash equivalents, borrowings under available debt facilities and proceeds from any additional debt or equity financings.  
As of December 31, 2012, we had cash and cash equivalents of $413.0 million and availability of $149.7 million under our 
$150.0 million first lien senior secured revolving credit facility.  Additionally, our foreign subsidiaries had $80.0 million 
available to be drawn under revolving credit facilities and $100.0 million available to be borrowed under term loans.  In 
2013, we borrowed an additional $23.0 million under our term loans.  Net cash provided by operating activities was $389.1 
million for the year ended December 31, 2012 compared to $516.8 million for the year ended December 31, 2011.  We 
expect cash flows to be used in the operation and expansion of our business, making capital expenditures, paying principal 
and interest on our debt and for other corporate purposes.

We have a significant amount of indebtedness.  Total debt at December 31, 2012 was $1,545.0 million.  Our indebtedness 
requires us to dedicate a substantial portion of our cash flow from operations to pay our debt and interest.  We refer you to 
“Contractual Obligations” below for a summary of principal and interest payments.

We operate in a capital intensive industry.  Servicing our current and future customers requires that we incur significant 
operating expenses and make significant capital expenditures, which are generally made in advance of the related revenues 
and without any firm customer commitments.

We sponsor an accrued severance plan for our Korean subsidiary which, under existing tax laws in Korea, limits our ability 
to deduct related severance expenses accrued under that plan.  The purpose of these limitations is to encourage companies 
to migrate to a defined contribution or defined benefit plan.  If we retain our existing severance plan, the deduction for 
severance expenses will be primarily limited to severance payments made to retired employees, which results in a larger 
current income tax liability in Korea.  If we decide to adopt a new plan, we may fund a significant portion of the existing 
liability, which would provide a current tax deduction upon funding.  Our Korean severance liability was $126.5 million 
as of December 31, 2012.

Included in our cash balance as of December 31, 2012, is $224.1 million held offshore by our foreign subsidiaries.  If we 
were to distribute this offshore cash to the U.S. as repatriated earnings of our foreign subsidiaries, we would incur up to 
$6.0 million of foreign withholding taxes; however, we would not incur a significant amount of U.S. federal income taxes, 
due to the availability of tax loss carryovers and foreign tax credits.

Our Board of Directors authorized the repurchase of up to $300.0 million of our common stock, exclusive of any fees, 
commissions or other expenses.  We did not purchase any stock under the plan for the three months ended December 31, 
2012.  Through December 31, 2012, we had repurchased 45.0 million shares for $208.4 million, net of $0.9 million of 
commissions, leaving a balance of $91.6 million available at December 31, 2012 for stock repurchases under this program.  
The purchase of stock may be made in the open market or through privately negotiated transactions.  The timing, manner, 
price and amount of any repurchases will be determined by us at our discretion and will depend upon a variety of factors 
including economic and market conditions, the cash needs and investment opportunities for the business, price, applicable 
legal requirements and other factors.  Our stock repurchase program may be suspended or discontinued at any time.

We have a 30% equity interest and options to acquire additional equity interests in J-Devices, a joint venture among Amkor, 
Toshiba and the original shareholders of J-Devices, which provides semiconductor packaging and test services in Japan.  
The options are exercisable at our discretion and permit us to increase our ownership interest in J-Devices.  In January 2013, 
we exercised our option to increase our ownership interest in J-Devices from 30% to 60% for an aggregate purchase price 
of ¥6.7 billion (approximately $75 million).  The transaction is expected to close in April 2013, subject to regulatory approval.  
Future options permit us to increase our ownership up to 66% in 2014 by purchasing shares owned by one of the other 
shareholders and up to 80% in 2015 by purchasing shares owned by the other shareholders.  In 2014 and beyond, Toshiba 
has the option, at its discretion, to sell shares it owns to us if we have exercised any of our options.  After we own 80% or 
more shares, the original shareholders of J-Devices have a put option which allows them to sell their shares to us.  The 
exercise price for all options is payable in cash and is to be determined using a formula based primarily upon the net book 

45

  
value and a multiple of earnings before interest, taxes, depreciation and amortization of J-Devices.  The governance provisions 
applicable to J-Devices restrict our ability, even after obtaining majority ownership, to cause J-Devices to take certain actions 
without the consent of the other investors.  Accordingly, we account for our investment in J-Devices using the equity method 
of accounting.  See Note 10 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-
K.  Increasing our investment in J-Devices has risks, including those discussed in Part I, Item 1A of this Annual Report on 
Form 10-K under the caption "Difficulties Consolidating and Integrating Our Operations — We Face Challenges as We 
Integrate Diverse Operations."

We refer you to Note 16 to our Consolidated Financial Statements in Part I, Item 1 of this Annual Report for a discussion 
of the pending arbitration relating to Amkor's license agreement with Tessera.  We expect to use cash on hand, proceeds 
from borrowings under our existing lines of credit or other sources to make any payments due in connection with our 
litigation with Tessera.

In January 2013, we sold office space and land located in Chandler, Arizona for $24.0 million.

In February 2013, we entered into an agreement for the purchase of land for a new factory and research and development 
center in Korea.  We paid 
billion (approximately $40 million) and 
billion (approximately $50 million) due in August 2013 and November 
2013, respectively.  We expect to spend approximately $300 million over the next several years for the construction of the 
facility.  

billion (approximately $10 million) at signing, with two remaining payments of 

In order to reduce leverage and future cash interest payments, we may from time to time repurchase our outstanding notes 
for cash or exchange shares of our common stock for our outstanding notes.  Any such transactions may be made in the 
open market, through privately negotiated transactions, pursuant to the terms of the notes or otherwise and would be subject 
to the terms of the indentures and other debt agreements, market conditions, and other factors.

In September 2012, we issued $300.0 million of 6.375% Senior Notes due October 2022 (the “2022 Notes”) and used the 
net proceeds to repay $224.9 million of subsidiary debt. 

Certain debt agreements have restrictions on dividend payments and the repurchase of stock and subordinated securities, 
including our convertible notes.  These restrictions are determined by calculations based upon cumulative net income.  We 
have never paid a dividend to our stockholders and we do not have any present plans for doing so.  Amkor Technology, Inc. 
also guarantees certain debt of our subsidiaries.

We were in  compliance with all debt  covenants at December 31, 2012 and  expect to  remain in compliance with  these 
covenants  for  at  least  the  next  twelve  months.   Additional  information  about  our  debt  is  available  in  Note  12  to  our 
Consolidated Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K.

Capital Additions

We make significant capital additions in order to service the demand of our customers.  Our capital additions increased as 
we transitioned to new packaging and test technologies.  In 2012, our capital additions totaled $533.2 million or approximately 
19.3% of net sales.  Of this total, approximately 42.2% of our capital additions were made in packaging, 39.9% in test and 
17.9% for research and development and infrastructure projects.  Our spending was focused primarily on investments in 
advanced test platforms and packaging equipment supporting the communications end market, as well as research and 
development projects.

We expect that our 2013 capital additions will be approximately $450 million, in addition to $150 million of spending for 
the acquisition of land and construction relating to our new factory and research and development center in Korea.  Our 
expected capital additions for 2013 primarily support customer demand for packaging and test services related to mobile 
communications.  Ultimately, the amount of our 2013 capital additions will depend on several factors including, among 
others, the timing and implementation of any capital projects under review, the performance of our business, economic and 
market conditions, the cash needs and investment opportunities for the business, the need for additional capacity to service 
anticipated customer demand and the availability of cash flows from operations or financing.  

46

In February 2013, we entered into an agreement for the purchase of land for a factory and research and development center 
in Korea.  The land purchase price is 
billion (approximately $100 million), payable in installments over the next 
ten months.  We expect to spend $150 million in 2013 for the acquisition of the land and construction relating to the Korean 
facility using cash on hand or borrowings.  Over the next several years, we expect to spend a total of approximately $300 
million for the construction of the facility.  The agreement to purchase the land for the facility is subject to our compliance 
with various construction, investment, hiring, regulatory and other requirements.  There can be no assurance that the new 
facility project will proceed at all, or that the actual scope, costs, timeline or benefits of the project will be consistent with 
our current expectations.

In addition, we are subject to risks associated with our capital additions, including those discussed in Part I, Item 1A of this 
Annual Report on Form 10-K under the caption "Capital Additions — We Make Substantial Capital Additions To Support 
the Demand Of Our Customers, Which May Adversely Affect Our Business If the Demand Of Our Customers Does Not 
Develop As We Expect or Is Adversely Affected."  The following table reconciles our activity related to property, plant and 
equipment additions as presented on the Consolidated Balance Sheets to purchases of property, plant and equipment as 
presented on the Consolidated Statements of Cash Flows:

For the Year Ended December 31,

2012

2011

2010

(In thousands)

Property, plant and equipment additions . . . . . . . . . . . . . . . . . . . . . . . $
Net change in related accounts payable and deposits. . . . . . . . . . . . . .
Purchases of property, plant and equipment. . . . . . . . . . . . . . . . . . . . . $

533,177

335

533,512

$

$

452,989

13,705

466,694

$

$

504,463
(58,794)
445,669

Cash Flows

Net cash provided by operating activities was $389.1 million for the year ended December 31, 2012 compared to $516.8 
million for the year ended December 31, 2011.  We experienced negative free cash flow of $144.4 million for the year ended 
December 31, 2012, which was primarily driven by capital purchases to support customer demand for packaging and test 
services related to mobile communications and an increase in accounts receivable.  Our free cash flow for the year ended 
December 31, 2011, was primarily driven by a decrease in accounts receivable, partially offset by a decrease in gross profit.  
Free cash flow is not a U.S. GAAP measure.  See below for a further discussion of free cash flow and a reconciliation to 
U.S. GAAP.

Net cash provided by (used in) operating, investing and financing activities for each of the three years ended December 31, 
2012 was as follows:

For the Year Ended December 31,

2012

2011

2010

(In thousands)

Operating activities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Financing activities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

389,063
(520,121)
110,032

$

516,832
(430,534)
(58,877)

542,595
(444,921)
(89,857)

Operating activities:  Our net cash provided by operating activities in 2012 decreased by $127.8 million compared to 2011.  
Operating income for the year ended December 31, 2012 adjusted for depreciation and amortization, other operating activities 
and non-cash items decreased $3.4 million from 2011.  The decrease was primarily driven by the 2012 estimated $50.0 
million loss contingency charge resulting from our pending patent license arbitration with Tessera, partially offset by lower 
selling, general and administrative expenses recognized in 2012.  Interest expense, net, for the year ended December 31, 
2012, increased by $10.9 million as compared with the year ended December 31, 2011, as a result of the interest related to 
our arbitration with Tessera and higher levels of long-term debt.  Operating cash flows in 2012 and 2011 were reduced by 
$0.5 million and $5.0 million, respectively, for fees in connection with debt repurchases.

Changes in assets and liabilities decreased operating cash flows during 2012 by $28.8 million principally due to an increase 
in accounts receivable and inventories, offset by increases in accrued expenses.  Accrued expenses increased primarily due 

47

to the accrual for estimated royalties and interest relating to our arbitration with Tessera.  During 2011, changes in assets 
and liabilities increased operating cash flows by $76.4 million, principally due to a decrease in accounts receivable.

Investing activities:  Our net cash used in investing activities in 2012 increased by $89.6 million.  This increase was primarily 
due to a $66.8 million increase in purchases of property, plant and equipment from $466.7 million in 2011 to $533.5 million 
in 2012, partially offset by a decrease in proceeds from property, plant and equipment from the 2011 sale of our Singapore 
facility for $13.3 million. 

Financing activities:  Our net cash provided by financing activities in 2012 was $110.0 million.  The net cash provided by 
financing activities during 2012 included borrowings of $667.5 million offset by $470.1 million of foreign debt repayments, 
the repurchase of $80.9 million of common stock under our authorized stock repurchase program and payment of $6.0 
million in debt issuance costs associated with the the issuance of our 6.375% Senior Notes due in 2022 and the amendment 
and restatement of our first lien senior secured revolving credit facility.  Cash used in financing activities during 2011 
consisted principally of borrowings of $489.1 million offset by $413.8 million of debt repayments, the repurchase of $128.4 
million of common stock under our stock repurchase program and payment of $5.9 million in debt issuance costs associated 
with the issuance of our 6.625% Senior Notes due in 2021. 

We provide the following supplemental data to assist our investors and analysts in understanding our liquidity and capital 
resources.  We define free cash flow as net cash provided by operating activities less purchases of property, plant and 
equipment.  Free cash flow is not defined by U.S. GAAP.  We believe free cash flow to be relevant and useful information 
to our investors because it provides them with additional information in assessing our liquidity, capital resources and financial 
operating results. Our management uses free cash flow in evaluating our liquidity, our ability to service debt and our ability 
to fund capital additions.  However, free cash flow has certain limitations, including that it does not represent the residual 
cash flow available for discretionary expenditures since other, non-discretionary expenditures, such as mandatory debt 
service,  are  not  deducted  from  the  measure.    The  amount  of  mandatory  versus  discretionary  expenditures  can  vary 
significantly between periods.  This measure should be considered in addition to, and not as a substitute for, or superior to, 
other measures of liquidity or financial performance prepared in accordance with U.S. GAAP, such as net cash provided 
by operating activities.  Furthermore, our definition of free cash flow may not be comparable to similarly titled measures 
reported by other companies.

Net cash provided by operating activities. . . . . . . . . . . . . . . . . . . . . . . $
Less purchases of property, plant and equipment. . . . . . . . . . . . . . . . .
Free cash flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

389,063

$

533,512
(144,449) $

516,832

466,694

50,138

$

$

542,595

445,669

96,926

For the Year Ended December 31,

2012

2011

2010

(In thousands)

48

Contractual Obligations

The following table summarizes our contractual obligations at December 31, 2012, and the effect such obligations are 
expected to have on our liquidity and cash flow in future periods.

Total

2013

2014

2015

2016

2017

Thereafter

Payments Due for Year Ending December 31,

(In thousands)

Total debt . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1,545,000

$

— $

250,000

$

100,000

$

— $

137,000

$ 1,058,000

Scheduled interest payment obligations (1) .

Purchase obligations (2) . . . . . . . . . . . . . . . .

Operating lease obligations . . . . . . . . . . . . .

Severance obligations (3) . . . . . . . . . . . . . . .

618,182

118,341

29,036

126,513

96,638

118,341

11,671

9,516

89,138

78,350

77,428

74,509

202,119

—

7,926

8,785

—

5,517

8,132

—

953

7,517

—

860

6,959

—

2,109

85,604

Total contractual obligations . . . . . . . . . $ 2,437,072

$

236,166

$

355,849

$

191,999

$

85,898

$

219,328

$ 1,347,832

(1)  Scheduled interest payment obligations were calculated using stated coupon rates for fixed rate debt and interest 

rates applicable at December 31, 2012, for variable rate debt.

(2)  Represents capital-related purchase obligations outstanding at December 31, 2012.

(3)  Represents estimated benefit payments for our Korean subsidiary severance plan.

In addition to the obligations identified in the table above, other non-current liabilities recorded in our Consolidated Balance 
Sheet at December 31, 2012, include:

• 

• 

$22.4 million of net foreign pension plan obligations for which the timing and actual amount of funding required 
is uncertain.  We expect to contribute $2.4 million to the plans during 2013.

$2.1 million net liability associated with unrecognized tax benefits.  Due to the uncertainty regarding the amount 
and the timing of any future cash outflows associated with our unrecognized tax benefits, we are unable to reasonably 
estimate the amount and period of ultimate settlement, if any, with the various taxing authorities.

Off-Balance Sheet Arrangements

As of December 31, 2012, we had no off-balance sheet guarantees or other off-balance sheet arrangements as defined in 
Item 303(a)(4)(ii)  of  SEC  Regulation S-K,  other  than  our  operating  lease  obligations  described  above  in  "Contractual 
Obligations."

Other Contingencies

We refer you to Note 16 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K 
for a discussion of our contingencies related to litigation and other legal matters.  If an unfavorable ruling were to occur in 
these matters, there exists the possibility of a material adverse impact on our business,  liquidity, results of  operations, 
financial position and cash flows in the period in which the ruling occurs.  The potential impact from the legal proceedings 
on our business, liquidity, results of operations, financial position and cash flows could change in the future.

Critical Accounting Policies and Use of Estimates

We have identified the policies below as critical to our business operations and the understanding of our results of operations.  
A summary of our significant accounting policies used in the preparation of our Consolidated Financial Statements appears 
in Note 1 to our Consolidated Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K.  Our 
preparation of this Annual Report on Form 10-K requires us to make estimates and assumptions that affect the reported 
amount of assets and liabilities, disclosure of contingent assets and liabilities at the date of our financial statements and the 
reported amounts of revenue and expenses during the reporting period.  There can be no assurance that actual results will 
not differ from those estimates.

49

We believe the following critical accounting policies, which have been reviewed with the Audit Committee of our board of 
directors,  affect  our  more  significant  judgments  and  estimates  used  in  the  preparation  of  our  Consolidated  Financial 
Statements.

Revenue Recognition.  We recognize revenue from our packaging and test services when there is evidence of an arrangement, 
delivery has occurred or services have been rendered, fees are fixed or determinable and collectibility is reasonably assured.  
Generally these criteria are met and revenue is recognized upon shipment.  If the revenue recognition criteria are not met, 
we defer the revenue.  Deferred revenue generally results from two types of transactions: invoicing at interim points in the 
packaging and test process prior to delivery and customer advances.  Deferred revenue relates to contractual invoicing at 
interim points prior to the delivery of the finished product.  The invoicing that is completed in advance of our revenue 
recognition  criteria  being  met  is  recorded  as  deferred  revenue.    Customer  advances  represent  supply  agreements  with 
customers where we commit capacity in exchange for customer prepayment of services.  These prepayments are deferred 
and recorded as customer advances within accrued expenses and other non-current liabilities.

We generally do not take ownership of customer-supplied semiconductor wafers.  Title and risk of loss remains with the 
customer for these materials at all times.  Accordingly, the cost of the customer-supplied materials is not included in our 
Consolidated Financial Statements.

An allowance for sales credits is recorded as a reduction to sales and accounts receivable during the period of sale such that 
accounts receivable is reported at its estimated net realizable value.  The allowance for sales credits is an estimate of the 
future credits we will issue for billing adjustments primarily for invoicing corrections and miscellaneous customer claims 
and is estimated based upon recent credit issuance, historical experience and specific identification of known or expected 
sales credits at the end of the reporting period.  Additionally, provisions are made for doubtful accounts when there is doubt 
as to the collectibility of accounts receivable.  The allowance for doubtful accounts is recorded as bad debt expense and is 
classified  as  selling,  general  and  administrative  expense.   The  allowance  for  doubtful  accounts  is  based  upon  specific 
identification of doubtful accounts considering the age of the receivable balance, the customer’s historical payment history 
and current credit worthiness as well as specific identification of any known or expected collectibility issues.

Income Taxes.  We operate in and file income tax returns in various U.S. and non-U.S. jurisdictions which are subject to 
examination by tax authorities.  The tax returns for open years in all jurisdictions in which we do business are subject to 
change upon examination.  We believe that we have estimated and provided adequate accruals for potential additional taxes 
and related interest expense that may ultimately result from such examinations.  We believe that any additional taxes or 
related interest over the amounts accrued will not have a material effect on our financial condition, results of operations or 
cash flows.  However, resolution of these matters involves uncertainties and there can be no assurance that the outcomes 
will be favorable.  In addition, changes in the mix of income from our foreign subsidiaries, expiration of tax holidays or 
changes in tax laws or regulations could result in increased effective tax rates in the future.

Additionally, we record valuation allowances for deferred tax assets for which it is more likely than not that the related tax 
benefits will not be realized.  U.S. GAAP requires companies to weigh both positive and negative evidence in determining 
the need for a valuation allowance for deferred tax assets.  As a result of net losses experienced in recent years in certain 
jurisdictions, we have determined that a valuation allowance is required for certain deferred tax assets including those related 
to all of our net operating loss carryforwards in the U.S.  We will release such valuation allowances as the related deferred 
tax benefits are realized on our tax returns or when sufficient net positive evidence exists to conclude it is more likely than 
not that the deferred tax assets will be realized.

Valuation of Inventory.  We order raw materials based on customers’ forecasted demand.  If our customers change their 
forecasted requirements and we are unable to cancel our raw materials order or if our vendors require that we order a 
minimum quantity that exceeds the current forecasted demand, we will experience a build-up in raw material inventory.  
We will either seek to recover the cost of the materials from our customers or utilize the inventory in production.  However, 
we may not be successful in recovering the cost from our customers or be able to use the inventory in production and, 
accordingly, if we believe that it is probable that we will not be able to recover such costs we reduce the carrying value of 
our inventory.  Additionally, we reduce the carrying value of our inventories for the cost of inventory we estimate is excess 
and obsolete based on the age of our inventories.  When a determination is made that the inventory will not be utilized in 
production or is not saleable, it is written-off.

50

Inventories are stated at the lower of cost or market (net realizable value).  Cost is principally determined by standard cost 
(on a first-in, first-out basis for raw materials and purchased components and an average cost basis for work-in-process) or 
by the weighted moving average method (for commodities and spare parts), both of which approximate actual cost.  We 
review and set our standards as needed, but at a minimum on an annual basis.

Long-lived Assets.  Property, plant and equipment are stated at cost.  Depreciation is calculated by the straight-line method 
over the estimated useful lives of depreciable assets which are as follows:

Land use rights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 years

Buildings and improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 to 25 years

Machinery and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 to 7 years

Software and computer equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 to 5 years

Furniture, fixtures and other equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 10 years

Cost and accumulated depreciation for property retired or disposed of are removed from the accounts and any resulting gain 
or loss is included in earnings.  Expenditures for maintenance and repairs are charged to expense as incurred.

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount 
may not be recoverable.  Recoverability of a long-lived asset group to be held and used in operations is measured by a 
comparison of the carrying amount to the sum of the undiscounted cash flows expected to result from the use and eventual 
disposition of the asset group.  If such asset group is considered to be impaired, the impairment loss is measured as the 
amount by which the carrying amount of the asset group exceeds its fair value.  Long-lived assets to be disposed of are 
carried at the lower of cost or fair value less the costs of disposal.

Legal  Contingencies.  We  are  subject  to  certain  legal  proceedings,  lawsuits  and  other  claims.    We  accrue  for  a  loss 
contingency, including legal proceedings, lawsuits, pending claims and other legal matters, when we conclude that the 
likelihood of a loss is probable and the amount of the loss can be reasonably estimated.  When the reasonable estimate of 
the loss is within a range of amounts, and no amount in the range constitutes a better estimate than any other amount, we 
accrue for the amount at the low end of the range.  We adjust our accruals from time to time as we receive additional 
information, but the loss we incur may be significantly greater than or less than the amount we have accrued.  We disclose 
loss contingencies if there is at least a reasonable possibility that a loss has been incurred.

Our assessment of required reserves may change in the future due to new developments in each matter.  The present legislative 
and litigation environment is substantially uncertain, and it is possible that our liquidity, results of operations, financial 
position and cash flows could be materially and adversely affected by an unfavorable outcome or settlement of our pending 
litigation and other claims.

Recently Adopted and Recently Issued Standards

For  information  regarding  recently  adopted  and  recently  issued  accounting  standards,  see  Note  2  to  our  Consolidated 
Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K.

51

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk

Market Risk Sensitivity

We are exposed to market risks, primarily related to foreign currency and interest rate fluctuations.  In the normal course 
of business, we employ established policies and procedures to manage the exposure to fluctuations in foreign currency 
values and changes in interest rates.  Our use of derivative instruments, including forward exchange contracts, has historically 
been insignificant; however, we continue to evaluate the use of hedging instruments to manage currency and other risks.  
We have not entered into any derivative transactions during the year ended December 31, 2012 and have no outstanding 
contracts as of December 31, 2012.

Foreign Currency Risk

As of December 31, 2012, we do not have forward contracts or other instruments to reduce our exposure to foreign currency 
gains and losses.  We generally use natural hedging techniques to reduce foreign currency rate risk.

The U.S. dollar is our reporting currency and the functional currency for the majority of our foreign subsidiaries including 
our largest subsidiaries in Korea and the Philippines and also our subsidiaries in China, Singapore and Taiwan.  For our 
subsidiaries and affiliate in Japan, the local currency is the functional currency.

We have foreign currency exchange rate risk associated with the remeasurement of monetary assets and monetary liabilities 
on our Consolidated Balance Sheet that are denominated in currencies other than the functional currency.  We performed 
a sensitivity analysis of our foreign currency exposure as of December 31, 2012, to assess the potential impact of fluctuations 
in exchange rates for all foreign denominated assets and liabilities.  Assuming a 10% adverse movement for all currencies 
against the U.S. dollar as of December 31, 2012, our income before income taxes for 2012 would have been approximately 
$9 million lower.  

In addition, we have foreign currency exchange rate exposure on our results of operations.  For the year ended December 31, 
2012, approximately 90% of our net sales were denominated in U.S. dollars.  Our remaining net sales were principally 
denominated in Japanese yen and Korean won for local country sales.  For the year ended December 31, 2012, approximately 
60% of our cost of sales and operating expenses were denominated in U.S. dollars and were largely for raw materials and 
factory supplies.  The remaining portion of our cost of sales and operating expenses was principally denominated in the 
Asian currency where our production facilities are located and largely consisted of labor and utilities.  To the extent that 
the U.S. dollar weakens against these Asian based currencies, similar foreign currency denominated transactions in the 
future will result in higher sales and higher operating expenses, with operating expenses having the greater impact on our 
financial results.  Similarly, our sales and operating expenses will decrease if the U.S. dollar strengthens against these foreign 
currencies.  We performed a sensitivity analysis of our foreign currency exposure as of December 31, 2012, to assess the 
potential impact of fluctuations in exchange rates for all foreign denominated sales and expenses.  Assuming a 10% adverse 
movement from the year ended December 31, 2012, exchange rates of the U.S. dollar compared to all of these Asian-based 
currencies as of December 31, 2012, our operating income for 2012 would have been approximately $80 million lower.

There are inherent limitations in the sensitivity analysis presented, primarily due to the assumption that foreign exchange 
rate movements across multiple jurisdictions are similar and would be linear and instantaneous.  As a result, the analysis is 
unable to reflect the potential effects of more complex market or other changes that could arise which may positively or 
negatively affect our results of operations.

We have foreign currency exchange rate exposure on our stockholders’ equity as a result of the translation of our subsidiaries 
where the local currency is the functional currency.  To the extent the U.S. dollar strengthens against the local currency, the 
translation of these foreign currency denominated transactions will result in reduced sales, operating expenses, assets and 
liabilities.  Similarly, our sales, operating expenses, assets and liabilities will increase if the U.S. dollar weakens against the 
local currencies.  The effect of foreign exchange rate translation on our Consolidated Balance Sheet for the years ended 
December 31, 2012 and 2011, was a net foreign translation loss of $4.7 million and a gain of $1.2 million, respectively, and 
was recognized as an adjustment to equity through other comprehensive income.

52

Interest Rate Risk

We have interest rate risk with respect to our long-term debt.  As of December 31, 2012, we had a total of $1,545.0 million 
of debt of which 83.8% was fixed rate debt and 16.2% was variable rate debt.  As of December 31, 2011, we had a total of 
$1,346.7 million of debt of which 73.9% was fixed rate debt and 26.1% was variable rate debt.  The fixed rate debt consists 
of senior notes and senior subordinated notes.  Our variable rate debt principally relates to our foreign borrowings and 
revolving lines of credit and any amounts outstanding under our $150.0 million senior and secured revolving line of credit, 
under which no amounts were drawn as of December 31, 2012.  Changes in interest rates have different impacts on the 
fixed and variable rate portions of our debt portfolio.  A change in interest rates on the fixed portion of the debt portfolio 
impacts the fair value of the instrument but has no impact on interest expense or cash flows.  A change in interest rates on 
the variable portion of the debt portfolio impacts the interest incurred and cash flows but does not generally impact the fair 
value of the instrument.  The fair value of the convertible notes is also impacted by changes in the market price of our 
common stock.

The table below presents the interest rates, maturities and fair value of our fixed and variable rate debt as of December 31, 
2012.

2013

2014

2015

2016

2017

Thereafter

Total

Fair Value

Long term debt:

Fixed rate debt (In thousands) . . . . . . . . . $

— $ 250,000

$

— $

— $

— $ 1,045,000

$ 1,295,000

$ 1,433,920

Average interest rate. . . . . . . . . . . . . . . . .

—%

6.0%

—%

—%

—%

6.8%

6.6%

Variable rate debt (In thousands) . . . . . . . $

— $

— $ 100,000

$

— $ 137,000

$

13,000

$ 250,000

$

269,200

Average interest rate. . . . . . . . . . . . . . . . .

—%

—%

4.2%

—%

4.3%

4.0%

4.2%

_______________________________________

For information regarding the fair value of our long-term debt, see Note 15 to our Consolidated Financial Statements in 
Part II, Item 8 of this Annual Report on Form 10-K.

Equity Price Risk

We have convertible notes that are convertible into our common stock. If investors were to decide to convert their notes to 
common stock, our future earnings would benefit from a reduction in interest expense and our common stock outstanding 
would be increased.  If we paid a premium to induce such conversion, our earnings could include an additional charge.

Further, the trading price of our common stock has been and is likely to continue to be highly volatile and could be subject 
to wide fluctuations.  Such fluctuations could impact our decision or ability to utilize the equity markets as a potential source 
of our funding needs in the future.

53

Item 8. 

Financial Statements and Supplementary Data

We present the information required by Item 8 of Form 10-K here in the following order:

Report of Independent Registered Public Accounting Firm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Income — Years ended December 31, 2012, 2011 and 2010 . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Comprehensive Income — Years ended December 31, 2012, 2011 and 2010 . . . . . . .
Consolidated Balance Sheets — December 31, 2012 and 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Stockholders’ Equity — Years ended December 31, 2012, 2011 and 2010 . . . . . . . . .
Consolidated Statements of Cash Flows — Years ended December 31, 2012, 2011 and 2010 . . . . . . . . . . . . . . . .
Notes to Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schedule II — Valuation and Qualifying Accounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

55

56

57

58

59

60

61

98

54

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Amkor Technology, Inc.:

In our opinion, the consolidated financial statements listed in the accompanying index present fairly, in all material respects, 
the financial position of Amkor Technology, Inc. and its subsidiaries at December 31, 2012 and 2011, and the results of 
their operations and their cash flows for each of the three years in the period ended December 31, 2012 in conformity with 
accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement 
schedule listed in the accompanying index presents fairly, in all material respects, the information set forth therein when 
read in conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all 
material respects, effective internal control over financial reporting as of December 31, 2012 based on criteria established 
in  Internal  Control —  Integrated  Framework  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway 
Commission (COSO). The Company’s management is responsible for these financial statements and financial statement 
schedule, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of 
internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting 
appearing under Item 9A. Our responsibility is to express opinions on these financial statements, on the financial statement 
schedule, and on the Company’s internal control over financial reporting based on our integrated audits. We conducted our 
audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards 
require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free 
of material misstatement and whether effective internal control over financial reporting was maintained in all material 
respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and 
disclosures  in  the  financial  statements,  assessing  the  accounting  principles  used  and  significant  estimates  made  by 
management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting 
included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness 
exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our 
audits also included performing such other procedures as we considered necessary in the circumstances. We believe that 
our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the 
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally 
accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures 
that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and 
dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to 
permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts 
and expenditures of the company are being made only in accordance with authorizations of management and directors of 
the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, 
use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate 
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/  PricewaterhouseCoopers LLP
Phoenix, Arizona
March 8, 2013 

55

AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF INCOME

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating expenses:

Selling, general and administrative . . . . . . . . . . . . . . . . . . . . . . . . .
Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total operating expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other expense (income):

Interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest expense, related party . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest income. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign currency loss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss on debt retirement, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equity in earnings of unconsolidated affiliate . . . . . . . . . . . . . . . . .
Other income, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total other expense, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income tax expense. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income attributable to noncontrolling interests . . . . . . . . . . . . . . .
Net income attributable to Amkor . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Net income attributable to Amkor per common share:

For the Year Ended December 31,

2012

2011

2010

(In thousands, except per share data)

2,759,546

$

2,776,359

$

2,939,483

2,335,736

423,810

2,285,790

490,569

2,275,727

663,756

217,000

54,118

271,118

152,692

83,974

13,969
(3,160)
4,185

1,199
(5,592)
(1,586)
92,989

59,703

17,001

42,702
(884)
41,818

246,513

50,386

296,899

193,670

74,212

12,394
(2,749)
2,178

15,531
(7,085)
(1,030)
93,451

100,219

7,124

93,095
(1,287)
91,808

0.48

0.39

$

$

$

242,424

47,534

289,958

373,798

85,595

15,250
(2,950)
13,756

18,042
(6,435)
(619)
122,639

251,159

19,012

232,147
(176)
231,971

1.26

0.91

$

$

$

Basic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

0.26

0.24

Shares used in computing per common share amounts:

Basic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

160,105

243,004

190,829

273,686

183,312

282,602

The accompanying notes are an integral part of these statements.

56

AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Other comprehensive income (loss), net of tax:

Adjustments to unrealized components of defined benefit pension 
plans, net of tax of ($35), $362 and $208. . . . . . . . . . . . . . . . . .
Cumulative translation adjustment, net of tax of $1,552, ($1,754) 
and $0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total other comprehensive income (loss) . . . . . . . . . . . . . . . . . .
Comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comprehensive income attributable to noncontrolling interests . . . . .
Comprehensive income attributable to Amkor. . . . . . . . . . . . . . . . . . . $

For the Year Ended December 31,

2012

2011

2010

(In thousands)

42,702

$

93,095

$

232,147

5,137

(5,800)

2,270

(4,745)
392

43,094
(884)
42,210

$

1,192
(4,608)
88,487
(1,287)
87,200

$

8,166

10,436

242,583
(176)
242,407

The accompanying notes are an integral part of these statements.

57

AMKOR TECHNOLOGY, INC.
CONSOLIDATED BALANCE SHEETS

December 31,

2012

2011

(In thousands,
except per share data)

Current assets:

ASSETS

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Restricted cash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts receivable:

413,048
2,680

$

434,631
2,680

Trade, net of allowances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total current assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property, plant and equipment, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intangibles, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Investments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Restricted cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

389,699
13,098
227,439
45,444
1,091,408
1,819,969
4,766
38,690
2,308
68,074
3,025,215

$

Current liabilities:

LIABILITIES AND EQUITY

Short-term borrowings and current portion of long-term debt . . . . . . . . . . . . . . . . . . $
Trade accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total current liabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term debt, related party. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pension and severance obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other non-current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

— $

439,663
212,964
652,627
1,320,000
225,000
139,379
21,415
2,358,421

298,543
27,197
198,427
35,352
996,830
1,656,214
8,382
36,707
4,001
70,913
2,773,047

59,395
424,504
158,287
642,186
1,062,256
225,000
129,096
13,288
2,071,826

Commitments and contingencies (Note 16)
Equity:
Amkor stockholders’ equity:

Preferred stock, $0.001 par value, 10,000 shares authorized, designated Series A, 

none issued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common stock, $0.001 par value, 500,000 shares authorized, 197,709 and 197,359 
shares issued, and 152,397 and 168,628 shares outstanding, in 2012 and 2011, 
respectively . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional paid-in capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated deficit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive income. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Treasury stock, at cost, 45,312 and 28,731 shares in 2012 and 2011, respectively . .
Total Amkor stockholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noncontrolling interests in subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total liabilities and equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

—

—

198
1,614,143
(756,644)
11,241
(210,983)
657,955
8,839
666,794
3,025,215

$

197
1,611,242
(798,462)
10,849
(130,560)
693,266
7,955
701,221
2,773,047

The accompanying notes are an integral part of these statements.

58

AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

Common Stock

Shares

Par Value

Additional 
Paid-
In Capital

Accumulated
Deficit

Accumulated
Other
Comprehensive
Income

Treasury Stock

Shares

Cost

Total Amkor
Stockholders'
Equity

Noncontrolling
Interest in
Subsidiaries

Total
Equity

(In thousands)

5,021

—

10,436

—

—

—

— $

— $

383,209

$

6,492

$ 389,701

—

—

—

—

231,971

176

232,147

10,436

—

10,436

(47)

(284)

(284)

—

—

—

—

1,166

3,515

—

—

—

(284)

1,166

3,515

Balance at December 31, 

2009 . . . . . . . . . . . . . . 183,171

$

183

$1,500,246

$ (1,122,241)

$

Net income . . . . . . . . . . .

Other comprehensive

income . . . . . . . . . . . .

Treasury stock acquired 
through surrender of 
shares for tax 
withholding . . . . . . . .

Issuance of stock

through share-based
compensation plans . .

Share-based

compensation
expense . . . . . . . . . . .

—

—

—

296

—

Balance at December 31, 

2010 . . . . . . . . . . . . . . 183,467

$

Net income . . . . . . . . . . .

Other comprehensive
income . . . . . . . . . . . . . .

—

—

Conversion of debt to
common stock. . . . . . . . .

13,351

Repurchase of common

stock . . . . . . . . . . . . .

Treasury stock acquired 
through surrender of 
shares for tax 
withholding . . . . . . . .

Issuance of stock

through share-based
compensation plans . .

Share-based

compensation
expense . . . . . . . . . . .

—

—

541

—

Balance at December 31, 

2011 . . . . . . . . . . . . . . 197,359

$

Net income . . . . . . . . . . .

Other comprehensive

income . . . . . . . . . . . .

Repurchase of common

stock . . . . . . . . . . . . .

Treasury stock acquired 
through surrender of 
shares for tax 
withholding . . . . . . . .

Issuance of stock

through share-based
compensation plans . .

Share-based

compensation
expense . . . . . . . . . . .

—

—

—

—

350

—

Balance at December 31, 

2012 . . . . . . . . . . . . . . 197,709

$

—

—

—

—

—

—

—

—

1,166

3,515

231,971

—

—

—

—

—

—

13

—

—

1

—

—

—

100,484

—

—

821

5,010

—

—

—

—

—

—

—

—

—

—

1

—

—

—

—

—

181

2,720

41,818

—

—

—

—

—

183

$1,504,927

$ (890,270)

$

15,457

(47)

$

(284)

$

630,013

$

6,668

$ 636,681

91,808

—

—

—

—

—

—

—

91,808

1,287

93,095

(4,608)

100,497

—

—

(4,608)

100,497

(4,608)

—

197

$1,611,242

$ (798,462)

$

10,849

(28,731)

$ (130,560)

$

693,266

$

7,955

$ 701,221

—

392

—

—

—

—

392

41,818

884

42,702

— (28,573)

(129,500)

(129,500)

— (129,500)

—

—

—

(111)

(776)

(776)

—

—

—

—

822

5,010

—

—

—

(776)

822

5,010

— (16,472)

(79,814)

(79,814)

—

—

—

(109)

(609)

(609)

—

—

—

—

182

2,720

—

—

—

—

—

392

(79,814)

(609)

182

2,720

198

$1,614,143

$ (756,644)

$

11,241

(45,312)

$ (210,983)

$

657,955

$

8,839

$ 666,794

The accompanying notes are an integral part of these statements.

59

AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

Cash flows from operating activities:

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

42,702

$

93,095

$

232,147

2012

For the Year Ended December 31,
2011
(In thousands)

2010

Adjustments to reconcile net income to net cash provided by operating

activities:

Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amortization of deferred debt issuance costs and discounts. . . . . . . . . . . . . . . . . .
Provision for accounts receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred income taxes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equity in earnings of unconsolidated affiliate. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss on debt retirement, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Gain) loss on disposal of fixed assets, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Share-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changes in assets and liabilities:

Accounts receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other receivables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trade accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other non-current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by operating activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cash flows from investing activities:

Purchases of property, plant and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from the sale of property, plant and equipment . . . . . . . . . . . . . . . . . . . . . . .
Financing lease payment from unconsolidated affiliate . . . . . . . . . . . . . . . . . . . . . . . .
Change in restricted cash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other investing activities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash used in investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cash flows from financing activities:

Borrowings under revolving credit facilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments under revolving credit facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Borrowings under short-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments of short-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of long-term debt, related party . . . . . . . . . . . . . . . . . . . . . . .
Payments of long-term debt, net of certain redemption premiums and discounts . . . .
Payments for debt issuance costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments for repurchase of common stock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of stock through share-based compensation plans . . . . . . . . .
Payments of tax withholding for restricted shares . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by (used in) financing activities . . . . . . . . . . . . . . . . . . . . .
Effect of exchange rate fluctuations on cash and cash equivalents. . . . . . . . . . . . . . . . . . .
Net (decrease) increase in cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash and cash equivalents, beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash and cash equivalents, end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Supplemental disclosures of cash flow information:

Cash paid during the period for:

370,479
3,663
(57)
6,078
(5,592)
737
(1,676)
2,720
(1,222)

(96,107)
(1,570)
(29,882)
(5,015)
(598)
17,142
66,566
20,695
389,063

(533,512)
2,727
15,484
1,693
(6,513)
(520,121)

—
—
30,000
(50,000)
637,528
—
(420,116)
(6,007)
(80,946)
182
(609)
110,032
(557)
(21,583)
434,631
413,048

Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

86,138
8,199

Non-cash investing activities:

$

$

335,644
3,737
(69)
(2,239)
(7,085)
10,557
1,942
5,010
(120)

95,882
2,813
(6,912)
(5,597)
347
(7,539)
(21,676)
19,042
516,832

(466,694)
15,823
10,794
13,046
(3,503)
(430,534)

—
—
26,567
(21,567)
387,512
75,000
(392,191)
(5,875)
(128,368)
821
(776)
(58,877)
2,212
29,633
404,998
434,631

81,280
16,380

$

$

323,608
4,458
508
4,736
(6,435)
10,562
423
3,515
4,317

(58,225)
203
(34,882)
6,876
(1,365)
18,379
18,019
15,751
542,595

(445,669)
3,125
13,384
(10,253)
(5,508)
(444,921)

3,261
(34,253)
15,000
(15,000)
611,007
—
(663,433)
(7,487)
—
1,048
—
(89,857)
1,775
9,592
395,406
404,998

96,642
5,906

Common stock issuance for conversion of related party 6.25% convertible

subordinated notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

100,000

—

The accompanying notes are an integral part of these statements.

60

 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements

1.  Description of Business and Summary of Significant Accounting Policies

Description of Business

Amkor is one of the world’s leading providers of outsourced semiconductor packaging (sometimes referred to as assembly) 
and test services.  Amkor pioneered the outsourcing of semiconductor packaging and test services through a predecessor 
corporation in 1968, and over the years, we have built a leading position by:

•  Designing and developing new packaging and test technologies;

•  Offering a broad portfolio of packaging and test technologies and services;

•  Cultivating  long-standing  relationships  with  our  customers,  which  include  many  of  the  world’s  leading 
semiconductor companies, and collaborating with original equipment manufacturers and equipment and material 
suppliers;

•  Developing a competitive cost structure with disciplined capital investment and building expertise in high-volume 

manufacturing processes and

•  Having a diversified operational scope with research and development, engineering and production capabilities at 

various facilities throughout China, Japan, Korea, the Philippines, Taiwan and the United States (“U.S.”).

Basis of Presentation

Our Consolidated Financial Statements include the accounts of Amkor Technology, Inc. and our subsidiaries (“Amkor”).  
Our Consolidated Financial Statements reflect the elimination of all significant inter-company accounts and transactions.  
Our  investments  in  variable  interest  entities  in  which  we  are  the  primary  beneficiary  are  consolidated.   We  reflect  the 
remaining portion of variable interest entities and foreign subsidiaries that are not wholly owned as noncontrolling interests.

The  preparation  of  financial  statements  in  conformity  with  U.S.  generally  accepted  accounting  principles  requires 
management  to  make  estimates  and  assumptions  that  affect  the  amounts  reported  in  the  financial  statements  and 
accompanying notes.  Actual results could differ materially from those estimates and assumptions.

Consolidation of Variable Interest Entities

We have variable interests in certain Philippine realty corporations in which we have a 40% ownership and from whom we 
lease land and buildings in the Philippines, for which we are the primary beneficiary.  As of December 31, 2012, the combined 
book value of the assets and liabilities associated with these Philippine realty corporations included in our Consolidated 
Balance Sheet was $16.7 million and $0.2 million, respectively.  The impact of consolidating these variable interest entities 
on our Consolidated Statements of Income was not significant, and other than our lease payments, we have not provided 
any significant assistance or other financial support to these variable interest entities for the years ended December 31, 
2012, 2011 or 2010.  The creditors of the Philippine realty corporations have no recourse to our general credit.

Foreign Currency Translation

The U.S. dollar is the functional currency of our subsidiaries in China, Korea, the Philippines, Singapore and Taiwan, and 
the foreign currency asset and liability amounts at these subsidiaries are remeasured into U.S. dollars  at end-of-period 
exchange  rates,  except for  nonmonetary  items  which  are  remeasured at  historical  rates.    Foreign  currency  income and 
expenses are remeasured at daily exchange rates, except for expenses related to balance sheet amounts which are remeasured 
at historical exchange rates.  Exchange gains and losses arising from remeasurement of foreign currency-denominated 
monetary assets and liabilities are included in other expense (income) in the period in which they occur.

The local currency is the functional currency of our subsidiaries in Japan.  The asset and liability amounts of these subsidiaries 
are translated into U.S. dollars at end-of-period exchange rates.  Income and expenses are translated into U.S. dollars at 

61

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

average exchange rates in effect during the period.  The resulting asset and liability translation adjustments are reported as 
a component of accumulated other comprehensive income in the stockholders’ equity section of the balance sheet.  Assets 
and liabilities denominated in a currency other than the functional currency are remeasured into the functional currency 
prior to translation into U.S. dollars, and the resulting exchange gains or losses are included in other expense (income) in 
the period in which they occur.

Concentrations and Credit Risk

Financial instruments, for which we are subject to credit risk, consist principally of accounts receivable and cash and cash 
equivalents.    With  respect  to  accounts  receivable,  we  mitigate  our  credit  risk  by  selling  primarily  to  well  established 
companies,  performing  ongoing  credit  evaluations  and  making  frequent  contact  with  customers.   We  have  historically 
mitigated our credit risk with respect to cash and cash equivalents through diversification of our holdings into various high 
quality mutual funds and bank deposit accounts.  At December 31, 2012, our cash and cash equivalents were invested in 
U.S. money market funds and various U.S. and foreign bank operating and time deposit accounts.

Risks and Uncertainties

Our future results of operations involve a number of risks and uncertainties.  Factors that could affect our business or future 
results and cause actual results to vary materially from historical results include, but are not limited to, dependence on the 
highly cyclical nature of the semiconductor and electronic products industries, fluctuations in operating results and cash 
flows,  high  fixed  costs,  failure  to  meet  guidance,  declining  average  selling  prices,  decisions  by  our  integrated  device 
manufacturer customers to curtail outsourcing, our substantial indebtedness, our ability to fund liquidity needs, our ability 
to  draw  on  our  current  loan  facilities,  restrictive  covenants  contained  in  the  agreements  governing  our  indebtedness, 
significant severance plan obligations, failure to maintain an effective system of internal controls, product return and liability 
risks including warranty claims, the absence of significant backlog in our business, dependence on international operations 
and sales, proposed changes to U.S. tax laws regarding earnings of our subsidiaries located outside the U.S., continuing 
development and implementation of changes to our management information systems, attracting and retaining qualified 
employees, difficulties consolidating and integrating our operations, dependence on materials and equipment suppliers, loss 
of customers, the need for significant capital expenditures, impairment charges, litigation incident to our business, adverse 
tax consequences, the development of new proprietary technology and the enforcement of intellectual property rights by 
or  against  us,  complexity  of  packaging  and  test  processes,  competition,  our  need  to  comply  with  existing  and  future 
environmental regulations, natural disasters, fire, flood or other calamity and continued control by existing stockholders.

We believe that our cash flows from operating activities together with existing cash and cash equivalents will be sufficient 
to fund our working capital, capital expenditure and debt service requirements for at least the next twelve months.  Thereafter, 
our liquidity will continue to be affected by, among other things, volatility in the global economy and credit markets, the 
performance of our business, our capital expenditure levels and our ability to either repay debt out of operating cash flows 
or refinance debt at or prior to maturity with the proceeds of debt or equity financings.

We  are  subject  to  certain legal  proceedings,  lawsuits  and  other  claims,  as  discussed  in  Note  16.   We  accrue  for  a  loss 
contingency, including legal proceedings, lawsuits, pending claims and other legal matters, when we conclude that the 
likelihood of a loss is probable and the amount of the loss can be reasonably estimated.  When the reasonable estimate of 
the loss is within a range of amounts, and no amount in the range constitutes a better estimate than any other amount, we 
accrue for the amount at the low end of the range.  We adjust our accruals from time to time as we receive additional 
information, but the loss we incur may be significantly greater than or less than the amount we have accrued.  We disclose 
loss contingencies if there is at least a reasonable possibility that a loss has been incurred.  Attorney fees related to legal 
matters are expensed as incurred.

Cash and Cash Equivalents

We consider all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents.  
Our cash and cash equivalents consist of amounts invested in U.S. money market funds and various U.S. and foreign bank 
operating and time deposit accounts.

62

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Restricted Cash

Restricted cash, current, consists of short-term cash equivalents used to collateralize our daily banking services.   Restricted 
cash, non-current, consists of collateral to fulfill foreign trade compliance requirements.

Inventories

Inventories are stated at the lower of cost or market (net realizable value).  Cost is principally determined by standard cost 
(on a first-in, first-out basis for raw materials and purchased components and an average cost basis for work-in-process) or 
by the weighted moving average method (for commodities and spare parts), both of which approximate actual cost.  We 
review and set our standards as needed, but at a minimum on an annual basis.  We reduce the carrying value of our inventories 
for the cost of inventory we estimate is excess and obsolete based on the age of our inventories.  When a determination is 
made that the inventory will not be utilized in production or is not saleable, it is written-off.

Other Current Assets

Other current assets consist principally of prepaid assets, deferred tax assets and an investment in government securities by 
a foreign subsidiary to satisfy local regulatory requirements, which is recorded at amortized cost.

Property, Plant and Equipment

Property, plant and equipment are stated at cost.  Depreciation is calculated by the straight-line method over the estimated 
useful lives of depreciable assets which are as follows:

Land use rights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 years

Buildings and improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 to 25 years

Machinery and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 to 7 years

Software and computer equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 to 5 years

Furniture, fixtures and other equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 10 years

Cost and accumulated depreciation for property retired or disposed of are removed from the accounts, and any resulting 
gain or loss is included in earnings.  Expenditures for maintenance and repairs are charged to expense as incurred.  The 
following table presents depreciation expense as included in the Consolidated Statements of Income: 

For the Year Ended December 31,

2012

2011

2010

(In thousands)

Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Selling, general and administrative. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

336,542

$

302,011

$

290,170

19,487

10,600

22,387

5,981

22,978

4,509

Total depreciation expense. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

366,629

$

330,379

$

317,657

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount 
may not be recoverable.  Recoverability of a long-lived asset group to be held and used in operations is measured by a 
comparison of the carrying amount to the sum of the undiscounted cash flows expected to result from the use and eventual 
disposition of the asset group.  If such asset group is considered to be impaired, the impairment loss is measured as the 
amount by which the carrying amount of the asset group exceeds its fair value.  Long-lived assets to be disposed of are 
carried at the lower of cost or fair value less the costs of disposal.

63

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Intangibles

Finite-lived intangible assets include customer relationship and supply agreements as well as patents and technology rights 
and are amortized on a straight-line basis over their estimated useful lives, generally for periods ranging from 3 to 10 years.  
We  continually  evaluate  the  reasonableness  of  the  useful  lives  of  these  assets.    Finite-lived  intangibles  are  tested  for 
recoverability whenever events or changes in circumstances indicate the carrying amounts may not be recoverable.  An 
impairment loss, if any, would be measured as the excess of the carrying value over the fair value determined by discounted 
future cash flows.  Amortization of finite-lived assets was $3.9 million, $5.2 million and $5.9 million for 2012, 2011 and 
2010, respectively.

Investments

In October 2009, we acquired a 30% interest in a packaging and test services business in Japan, J-Devices.  See Note 10 
for additional information.  Our investment is accounted for as an equity method investment.  We evaluate our investment 
for  other-than-temporary  impairment  whenever  events  or  changes  in  circumstances  indicate  that  the  fair  value  of  the 
investment may be less than its carrying value.

Other Assets

Other assets consist principally of deferred income tax assets, deferred debt issuance costs and refundable security deposits.

Other Non-current Liabilities

Other non-current liabilities consist primarily of deferred tax liabilities, deferred revenue, customer advance payments and 
liabilities associated with uncertain income tax positions.

Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income, net of tax, consist of the following:

Unrealized foreign currency translation gains, net of tax . . . . . . . . . . . . . . . . . . . . . . . . $
Unrealized components of defined benefit pension plan adjustments, net of tax . . . . . .

Total accumulated other comprehensive income. . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

December 31,

2012

2011

(In thousands)

16,614
(5,373)
11,241

$

$

21,359
(10,510)
10,849

The unrealized foreign currency translation gains are net of deferred income tax expense of $0.2 million and $1.8 million 
at December 31, 2012 and 2011, respectively.  The unrealized components of defined benefit pension plan adjustments are 
net of deferred income tax benefits of $1.3 million and $1.4 million at December 31, 2012 and 2011, respectively.

Treasury Stock

Treasury  stock  is  recognized  when  outstanding  shares  are  repurchased  or  otherwise  acquired  by  us,  including  when 
outstanding shares are withheld to satisfy tax withholding obligations in connection with certain restricted share awards 
under our equity incentive plans.  The repurchased and withheld shares are accounted for as treasury stock at cost.  See 
Note 3 and Note 14 for more information.

64

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Fair Value Measurements

We apply fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the 
financial statements on a recurring or nonrecurring basis.  We define fair value as the price that would be received from 
selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an 
orderly transaction between market participants at the measurement date.  See Note 15 for further discussion of fair value 
measurements.

Revenue Recognition

We recognize revenue from our packaging and test services when there is evidence of an arrangement, delivery has occurred 
or services have been rendered, fees are fixed or determinable and collectibility is reasonably assured.  Generally these 
criteria are met and revenue is recognized upon shipment.  If the revenue recognition criteria are not met, we defer the 
revenue.  Deferred revenue generally results from two types of transactions: invoicing at interim points in the packaging 
and test process prior to delivery and customer advances.  Deferred revenue relates to contractual invoicing at interim points 
prior to the delivery of the finished product.  The invoicing that is completed in advance of our revenue recognition criteria 
being met is recorded as deferred revenue.  Customer advances represent supply agreements with customers where we 
commit capacity in exchange for customer prepayment of services.  These prepayments are deferred and recorded as customer 
advances within accrued expenses and other non-current liabilities. 

We generally do not take ownership of customer-supplied semiconductor wafers.  Title and risk of loss remains with the 
customer for these materials at all times.  Accordingly, the cost of the customer-supplied materials is not included in our 
Consolidated Financial Statements.

An allowance for sales credits is recorded as a reduction to sales and accounts receivable during the period of sale such that 
accounts receivable is reported at its estimated net realizable value.  The allowance for sales credits is an estimate of the 
future credits we will issue for billing adjustments primarily for invoicing corrections and miscellaneous customer claims 
and is estimated based upon recent credit issuance, historical experience and specific identification of known or expected 
sales credits at the end of the reporting period.  Additionally, provisions are made for doubtful accounts when there is doubt 
as to the collectibility of accounts receivable.  The allowance for doubtful accounts is recorded as bad debt expense and is 
classified  as  selling,  general  and  administrative  expense.   The  allowance  for  doubtful  accounts  is  based  upon  specific 
identification of doubtful accounts considering the age of the receivable balance, the customer’s historical payment history 
and current credit worthiness as well as specific identification of any known or expected collectibility issues.

Shipping and Handling Fees and Costs

Amounts billed to customers for shipping and handling are presented in net sales.  Costs incurred for shipping and handling 
are included in cost of sales.

Research and Development Costs

Research  and  development  expenses  include  costs  attributable  to  the  conduct  of  research  and  development  programs 
primarily related to the development of new package designs and improving the efficiency and capabilities of our existing 
production processes.  Such costs include salaries, payroll taxes, employee benefit costs, materials, supplies, depreciation 
and maintenance of research equipment, services provided by outside contractors and the allocable portions of facility costs 
such as rent, utilities, insurance, repairs and maintenance, depreciation and general support services.  All costs associated 
with research and development are expensed as incurred.

Income Taxes

Income taxes are accounted for using the asset and liability method.  Under this method, deferred income tax assets and 
liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement 
carrying amounts of existing assets and liabilities and their respective tax basis as well as for net operating loss and tax 

65

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

credit carryforwards.  Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to 
taxable income in the years in which these temporary differences are expected to be recovered or settled.  The effect on 
deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment 
date.  A valuation allowance is provided for those deferred tax assets for which it is more likely than not that the related tax 
benefits will not be realized.

In determining the amount of the valuation allowance, we consider all available evidence of realization, as well as feasible 
tax planning strategies, in each taxing jurisdiction.  If all or a portion of the remaining deferred tax assets will not be realized, 
the valuation allowance will be increased with a charge to income tax expense.  Conversely, if we conclude that we will 
ultimately be able to utilize all or a portion of the deferred tax assets for which a valuation allowance has been provided, 
the related portion of the valuation allowance will be released to income as a credit to income tax expense.  We monitor on 
an ongoing basis our ability to utilize our deferred tax assets and the continuing need for a related valuation allowance.

We recognize in our Consolidated Financial Statements the impact of an income tax position, if that position is more likely 
than not of being sustained on audit, based on the technical merits of the position.  Related interest and penalties are classified 
as income taxes in the financial statements.  See Note 4 for more information regarding unrecognized income tax benefits.

2.  New Accounting Standards

Recently Adopted Standards

In May 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2011-04, 
Fair Value Measurement (Topic 820).  This ASU updates certain requirements for measuring fair value and disclosure 
regarding fair value measurement.  This ASU is effective for reporting periods beginning after December 15, 2011.  Our 
adoption of ASU 2011-04 on January 1, 2012, impacted our financial statement disclosure (Note 15).

In June 2011, the FASB issued ASU 2011-05, Presentation of Comprehensive Income (Topic 220).  This ASU eliminates 
the option to report other comprehensive income and its components in the statement of changes in stockholders’ equity 
and requires an entity to present the total of comprehensive income, the components of net income and the components of 
other comprehensive income either in a single continuous statement or in two separate but consecutive statements.  This 
ASU is effective for reporting periods beginning after December 15, 2011.  Full retrospective application is required.  Our 
adoption of ASU 2011-05 on January 1, 2012, impacted our financial statement presentation (Consolidated Statements of 
Comprehensive Income and Consolidated Statements of Stockholders' Equity).

Recently Issued Standards

In  February  2013,  the  FASB  issued  ASU  2013-02,  Reporting  of  Amounts  Reclassified  Out  of  Accumulated  Other 
Comprehensive Income (Topic 220).  Under ASU 2013-02, an entity is required to provide information about the amounts 
reclassified out of accumulated other comprehensive income ("AOCI") by component.  In addition, an entity is required to 
present, either on the face of the financial statements or in the notes, significant amounts reclassified out of AOCI by the 
respective line items of net income, but only if the amount reclassified is required to be reclassified in its entirety in the 
same reporting period.  For amounts that are not required to be reclassified in their entirety to net income, an entity is 
required to cross-reference to other disclosures that provide additional details about those amounts.  ASU 2013-02 does not 
change the current requirements for reporting net income or other comprehensive income in the financial statements.  This 
ASU is effective for reporting periods beginning after December 15, 2012.  ASU 2013-02 is not expected to have a significant 
effect on our financial statement presentation or disclosure.

66

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

3.  Share-Based Compensation Plans

Our share-based compensation is measured at fair value and expensed over the service period (generally the vesting period).  
The amount of compensation expense to be recognized is adjusted for an estimated forfeiture rate which is based on historical 
data.  The following table presents share-based compensation expense attributable to stock options and restricted shares:

Stock options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Restricted shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total share-based compensation expense . . . . . . . . . . . . . . . . . . . . $

For the Year Ended December 31,

2012

2011

2010

(In thousands)

1,160

1,560

2,720

$

$

2,025

2,985

5,010

$

$

2,473

1,042

3,515

The following table presents share-based compensation expense included in the Consolidated Statements of Income:

For the Year Ended December 31,

2012

2011

2010

(In thousands)

Selling, general and administrative. . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total share-based compensation expense . . . . . . . . . . . . . . . . . . . . $

2,368

352

2,720

$

$

4,363

647

5,010

$

$

3,080

435

3,515

There is no corresponding deferred income tax benefit for stock options or restricted shares.  

Equity Incentive Plans

Amended and Restated 2007 Equity Incentive Plan.  On August 6, 2007, our shareholders approved the 2007 Equity Incentive 
Plan.  On May 8, 2012, our shareholders considered certain changes to the plan which was approved as the Amended and 
Restated 2007 Equity Incentive Plan, (the “2007 Plan”) that provides for the grant of the following types of incentive awards: 
(i) stock options, (ii) restricted stock, (iii) restricted stock units, (iv) stock appreciation rights, (v) performance units and 
performance  shares  and  (vi) other  stock  or  cash  awards.    Those  eligible  for  awards  include  employees,  directors  and 
consultants who provide services to Amkor and its subsidiaries.  The initial effective date of this plan was January 1, 2008, 
and there were originally 17,000,000 shares of our common stock reserved for issuance under the 2007 Plan.

2003 Nonstatutory Inducement Grant Stock Plan.  On September 9, 2003, we initiated the 2003 Nonstatutory Inducement 
Grant Stock Plan (the “2003 Plan”).  The 2003 Plan generally provides for the grant to employees, directors and consultants 
of stock options and stock purchase rights and is generally used as an inducement benefit for the purpose of retaining new 
employees.  There is a provision for an annual replenishment to bring the number of shares of common stock reserved for 
issuance under the plan up to 300,000 as of each January 1.

1998 Director Option Plan.  The Director Plan terminated in January 2008. The options granted under the Director Plan 
were automatic and non-discretionary. Each option granted to a non-employee director vests over a three year period.

1998 Stock Plan.  The 1998 Stock Plan terminated in January 2008.  The 1998 Stock Plan generally provided for grants to 
employees, directors and consultants of stock options and stock purchase rights.  The options granted vest over a two to 
five year period.

67

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

A summary of the stock plans, the respective plan termination dates and shares available for grant as of December 31, 2012, 
is shown below:

Stock Plans
Contractual life (years) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Incentive Plan

Inducement Plan

10

10

Plan termination date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shares available for grant at December 31, 2012 (in thousands) . . . .

Board of Directors
Discretion

Board of Directors
Discretion

14,415

444

Amended and Restated 
2007 Equity

2003

Stock options

Stock  options  are  generally  granted  with  an  exercise  price  equal  to  the  market  price  of  the  stock  at  the  date  of  grant.  
Substantially all of the options granted are exercisable pursuant to a two to five year vesting schedule and the term of the 
options granted is no longer than ten years.  Upon option exercise, we may issue new shares of common or treasury stock.

In order to calculate the fair value of stock options at the date of grant, we use the Black-Scholes option pricing model.  
Expected volatilities are based on historical performance of our stock.  We also use historical data to estimate the timing 
and amount of option exercises and forfeitures within the valuation model.  The expected term of the options is based on 
evaluations of historical and expected future employee exercise behavior and represents the period of time that options 
granted are expected to be outstanding.  The risk-free interest rate for periods within the contractual life of the option is 
based on the U.S. Treasury yield curve in effect at the time of grant.

The following is a summary of all option activity for the year ended December 31, 2012:

Number of
Shares
(In thousands)

Weighted Average
Exercise Price
per Share

Weighted Average
Remaining
Contractual Term
(Years)

Aggregate
Intrinsic
Value
(In thousands)

Outstanding at December 31, 2011. . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited or expired. . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2012. . . . . . . . . .
Fully vested and expected to vest at 

December 31, 2012 . . . . . . . . . . . . . . . . . . .
Exercisable at December 31, 2012 . . . . . . . . . .

6,052

$

100

(50)

(1,209)

4,893

4,881

4,693

$

$

$

9.97

4.58

3.63

11.64

9.52

9.53

9.68

2.59

2.57

2.33

$

$

$

48

48

48

The following assumptions were used to calculate weighted average fair values of the options granted:

For the Year Ended December 31,

2012

2011

2010

Expected life (in years). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weighted average grant date fair value per option granted . . . . . . . . . $

6.0

1.0%

65%

—

6.2

2.4%

67%

—

2.68

$

4.06

$

6.0

3.0%

71%

—

5.00

The intrinsic value of options exercised for the years ended December 31, 2012, 2011 and 2010 was $0.1 million, $0.4 
million and $0.3 million, respectively.  For the years ended December 31, 2012, 2011 and 2010, cash received under all 

68

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

share-based payment arrangements was $0.2 million, $0.8 million and $1.0 million, respectively.  The related cash receipts 
are  included  in  financing  activities  in  the  accompanying  Consolidated  Statements  of  Cash  Flows.   Total  unrecognized 
compensation expense from stock options, including a forfeiture estimate, was $0.4 million as of December 31, 2012, which 
is expected to be recognized over a weighted-average period of 1.7 years beginning January 1, 2013.  To the extent that the 
actual forfeiture rate is different than what we have anticipated, the share-based compensation expense related to these 
options will be different from our expectations.

Restricted Shares

We grant restricted shares to employees under the 2007 Plan.  The restricted shares vest ratably over four years, with 25% 
of the shares vesting at the end of the first year and the remainder vesting monthly or quarterly thereafter, depending on the 
grant, such that 100% of the shares will become vested on the fourth anniversary of the award, subject to the recipient’s 
continued employment with us on the applicable vesting dates.  In addition, provided that the restricted shares have not 
been forfeited earlier, for certain grants, the restricted shares will vest upon the recipient’s death, disability or retirement, 
or upon a change in control of Amkor or, in some cases, upon retirement.  Although ownership of the restricted shares does 
not transfer to the recipients until the shares have vested, recipients have voting and dividend rights on these shares from 
the date of grant.  The value of the restricted shares is determined based on the fair market value of the underlying shares 
on the date of the grant and is recognized ratably over the vesting period or to the date on which the recipient becomes 
retirement eligible, if shorter.  Upon vesting of restricted stock awards, we may issue new shares of common or treasury 
stock.

The 2007 Plan and the terms of certain share grants provide that for certain grants, when a recipient’s age plus years of 
service equals or exceeds 75, the recipient will be eligible to voluntarily retire and become fully vested in their applicable 
restricted shares upon retirement.  Consequently, under federal tax law, when a recipient becomes retirement eligible, the 
employee is immediately taxable on 100% of their applicable restricted shares whether or not the recipient actually retires.  
Upon the earlier of retirement eligibility or vesting of the applicable restricted shares, the recipient has a tax liability for 
applicable grants and pursuant to the recipient’s award agreement, a portion of the restricted shares are withheld to satisfy 
the recipient’s statutory minimum tax withholding obligations.  The shares withheld are accounted for as treasury stock at 
cost, which is determined by the closing stock price per share on the applicable date of vesting or retirement eligibility.

The following table summarizes our restricted share activity for the year ended December 31, 2012:

Number of
Shares
(In thousands)

Weighted 
Average
Grant Date
Fair Value
(Per Share)

Nonvested at December 31, 2011. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Awards granted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Awards vested. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Awards forfeited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nonvested at December 31, 2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

693

$

481
(300)
(58)
816

$

7.33

4.43

7.36

7.24

5.61

Awards  vested  of  0.3  million,  included  less  than  0.1  million  shares  for  retirement  eligible  recipients  whose  applicable 
restricted shares are treated for accounting and tax purposes as if vested when they meet the retirement eligible date.  The 
fair value of shares vested during 2012 was $1.7 million.

The unrecognized compensation cost, including a forfeiture estimate, was $3.8 million as of December 31, 2012, which is 
expected to be recognized over a weighted average period of approximately 3.0 years beginning January 1, 2013.  To the 
extent that the actual forfeiture rate is different than what we have anticipated, the share-based compensation expense related 
to these awards will be different from our expectations.

69

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

4. 

Income Taxes

Geographic sources of income (loss) before income taxes are as follows:

For the Year Ended December 31,

2012

2011

2010

(In thousands)

United States. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . $

17,062

42,641

59,703

$

$

(8,097) $

108,316

(22,039)
273,198

100,219

$

251,159

The provision for income taxes includes federal, state and foreign taxes payable and those deferred because of temporary 
differences between the financial statement and the tax bases of assets and liabilities.

The components of the provision for income taxes are as follows:

For the Year Ended December 31,

2012

2011

2010

(In thousands)

Current

Federal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deferred

Federal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

— $
(75)
10,998

10,923

1,859

266

3,953

6,078

Total provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

17,001

$

— $

377

8,986

9,363

2,356

337
(4,932)
(2,239)
7,124

10

—

14,266

14,276

2,098

300

2,338

4,736

$

19,012

The reconciliation between the U.S. federal statutory income tax rate of 35% and our income tax provision is as follows:

For the Year Ended December 31,

2012

2011

2010

U.S. federal tax at 35% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
State taxes, net of federal benefit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign income taxed at different rates . . . . . . . . . . . . . . . . . . . . . . . .
Foreign exchange gain (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change in valuation allowance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments related to prior years . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income tax credits generated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repatriation of foreign earnings and profits. . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(In thousands)

20,896

$

35,039

$

1,406
(14,717)
12,329
(3,112)
(2,464)
(1,370)
3,240
793

1,805
(22,507)
(5,966)
(8,672)
3,582
(466)
3,388
921

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

17,001

$

7,124

$

87,929

523
(80,461)
3,176

15,004
(4,281)
(2,765)
122
(235)
19,012

70

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The following is a summary of the components of our deferred tax assets and liabilities:

Deferred tax assets:

Net operating loss carryforwards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Capital loss carryforwards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income tax credits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property, plant and equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrealized foreign exchange loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valuation allowance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total deferred tax assets net of valuation allowance . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred tax liabilities:

Property, plant and equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Recognized as:

Other current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other non-current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

December 31,

2012

2011

(In thousands)

155,270

$

162,655

18,221

31,665

283

46,045

3,949

19,252

274,685
(209,757)
64,928

3,263

6,899

13,031

23,193

41,735

12,615

40,047
(800)
(10,127)
41,735

$

$

$

18,221

20,591

19,020

40,185

5,437

16,160

282,269
(214,269)
68,000

4,532

6,899

13,954

25,385

42,615

13,541

45,627
(10,044)
(6,509)
42,615

In 2012, the valuation allowance on our deferred tax assets decreased by $4.5 million primarily as a result of the realization 
of domestic net operating loss carryforwards partially offset by an increase associated with losses and reserves in certain 
foreign jurisdictions.

In 2011, the valuation allowance on our deferred tax assets decreased by $9.3 million primarily as a result of the write-off 
of net operating loss carryforwards in connection with the liquidation of our Singapore manufacturing operations and the 
reorganization of the corporate structure of our Philippine manufacturing operations.

In 2010, the valuation allowance on our deferred tax assets increased by $14.7 million primarily as a result of an increase 
associated with losses incurred in the U.S. and certain foreign jurisdictions offset by a $3.0 million decrease associated with 
the release of a valuation allowance on certain net deferred tax assets in Taiwan.

71

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

As  a  result  of  certain  income  tax  accounting  realization  requirements  with  respect  to  accounting  for  share-based 
compensation, the table of deferred tax assets and liabilities shown above does not include certain deferred tax assets at 
December 31, 2012 and 2011, that arose directly from tax deductions related to equity compensation that is greater than 
the compensation recognized for financial reporting.  If such deferred tax assets are subsequently realized, they will be 
recorded to contributed capital in the amount of $7.3 million.  As a result of net operating loss carryforwards, we were not 
able to recognize the excess tax benefits of stock option deductions in 2012 because the deductions did not reduce income 
tax payable.

As a result of certain capital investments, export commitments and employment levels, income from operations in Korea, 
the Philippines, China, Singapore and Taiwan is subject to reduced income tax rates and in some cases is exempt from 
income taxes.

Korea

In Korea, we have tax holidays resulting from our investment in the Gwangju, Seoul and Pupyong facilities.  The Gwangju 
tax holiday provides a 100% tax exemption through 2010, followed by a 50% exemption through 2013.  The Seoul and 
Pupyong tax holiday provides a 100% tax exemption through 2011, followed by a 50% exemption through 2014.  In 2011, 
we secured an additional tax holiday resulting from additional investment in Gwangju, which provides a 100% tax exemption 
through 2015 followed by a 50% exemption through 2017.  After the holidays expire we will be subject to the Korean 
statutory rate which is currently 24.2%.  We recognized $11.2 million, $3.0 million and $25.4 million in tax benefits as a 
result of the tax holidays on qualifying operations in Korea in 2012, 2011 and 2010, respectively.  The benefit of the tax 
holidays on diluted earnings per share was approximately $0.05, $0.01 and $0.09 for 2012, 2011 and 2010, respectively.  

Philippines

In the Philippines, we operate in economic zones and benefit from tax holidays on qualified products, as a result of certain 
capital investments we have made.  For 2006 through 2010, qualifying Philippine operations benefited from a full tax 
holiday, expiring at various times through 2013, while the remaining operations benefited from a perpetual reduced tax rate 
of  5%.    In  2012,  2011  and  2010,  our  Philippines  operations  recognized  $0.8  million,  $2.7  million  and  $5.9  million, 
respectively, in tax benefits as a result of the tax holiday on certain qualifying operations in the Philippines.  The tax holiday 
had no impact on diluted earnings per share in 2012.  The benefit of the tax holiday on diluted earnings per share was 
approximately $0.01 and $0.02 for 2011 and 2010, respectively.

China

In China, commencing on January 1, 2008, we have a 100% tax holiday for two years and then a 50% tax holiday for an 
additional three years.  As a result of net operating losses, we did not realize any benefits relating to such tax holidays in 
2011 or 2010 in China.  We recognized $1.7 million in tax benefits as a result of the tax holiday in 2012.  The statutory tax 
rate in China is currently 25%.  The benefit of the tax holiday on diluted earnings per share was approximately $0.01 for 
2012.  The tax holiday had no impact on diluted earnings per share for 2011 and 2010. 

Singapore

In October 2006, we were granted a ten-year pioneer incentive award in Singapore.  The 100% tax holiday on Singapore 
operations commenced on January 1, 2007.  As a result of net operating losses we did not realize any benefits relating to 
the pioneer incentive.  In 2010, we decided to wind-down and exit our manufacturing operations in Singapore.  The pioneer 
incentive award was terminated in 2011.  See Note 19 for more information.

72

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Taiwan

We were granted a five-year tax holiday on certain product lines in Taiwan beginning January 1, 2007 and an additional tax 
holiday on certain product lines, which we elected to begin January 1, 2013.  In 2012, 2011 and 2010, we did not recognize 
significant tax benefits as a result of the tax holiday on certain qualifying operations in Taiwan.  As a result there was no 
material per-share impact.  Effective January 1, 2010, the statutory tax rate in Taiwan is 17%.

Our net operating loss carryforwards (“NOL’s”) are as follows:

U.S. Federal NOL’s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
U.S. State NOL’s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign NOL’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For the Year Ended
December 31,

2012

2011

Expiration

(In thousands)

363,913

$

210,539

56,393

396,929

233,085

2021-2031

2013-2031

44,082

2014-2022

The deferred tax assets associated with approximately $43.8 million of the foreign net operating losses have been reserved 
with a valuation allowance.  We also have U.S. capital loss carryforwards of $45.6 million, which will expire in 2013.  The 
deferred tax assets associated with our U.S. federal and state net operating losses and capital losses available for carryforward 
have been fully reserved with valuation allowances at December 31, 2012 and 2011.  Also, our ability to utilize our U.S. net 
operating and capital loss carryforwards may be limited in the future if we experience an ownership change as defined by 
the Internal Revenue Code.

At December 31, 2012, we have various tax credits available to be carried forward including U.S. foreign income tax credits 
totaling $8.1 million, expiring in 2016, income tax credits totaling $1.2 million expiring in varying amounts through 2014 
at our subsidiary in Taiwan and income tax credits totaling $1.5 million expiring in varying amounts through 2017 at our 
subsidiary in Korea.  The deferred tax assets associated with the U.S. foreign income tax credits have been fully reserved 
with a valuation allowance.  Income tax credits generated by certain of our foreign subsidiaries in 2012, 2011 and 2010 
have been recognized in our income tax provision (benefit).

Income  taxes  have  not  been  provided  on  approximately  $441.9  million  of  the  undistributed  earnings  of  our  foreign 
subsidiaries at December 31, 2012 over which we have sufficient influence to control the distribution of such earnings and 
have determined that substantially all such earnings have been reinvested indefinitely.  These earnings could become subject 
to either or both federal income tax and foreign withholding tax if they are remitted as dividends, if foreign earnings are 
loaned to any of our domestic companies, or if we sell our investment in certain subsidiaries.  We estimate that repatriation 
of these foreign earnings would generate additional foreign withholding taxes of approximately $6.0 million and insignificant 
U.S. federal income tax after foreign tax credits.

In 2011, we provided U.S. income tax on approximately $8.9 million of foreign earnings from a Singapore subsidiary where 
we made the decision to commence liquidation.  The U.S. income tax of $3.1 million on these foreign earnings was fully 
offset by the tax benefit of our U.S. net operating losses.

73

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

We operate in and file income tax returns in various U.S. and foreign jurisdictions which are subject to examination by tax 
authorities.  The Bureau of Internal Revenue is examining our 2008 Philippines income tax return.  Our tax returns for open 
years in all jurisdictions are subject to changes upon examination.  Summarized below are the years subject to examination 
for our largest subsidiaries.

Jurisdiction

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Philippines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Japan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Singapore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taiwan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Years

2010-2012

2009-2012

2008-2012

2007-2012

2007-2012

2008-2012

2006-2012

A reconciliation of the beginning and ending gross amount of unrecognized tax benefits is as follows:

Balance at January 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Additions based on tax positions related to the current year . . . . . .
Additions for tax positions of prior years . . . . . . . . . . . . . . . . . . . .
Reductions for tax positions of prior years . . . . . . . . . . . . . . . . . . .
Reductions related to settlements with tax authorities. . . . . . . . . . .
Reductions from lapse of statutes of limitations . . . . . . . . . . . . . . .
Balance at December 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

For the Year Ended December 31,

2012

2011

2010

(In thousands)

7,930

$

10,503

$

5,551

54
(4,091)
(1,226)
—

8,218

$

24

699
(2,248)
(991)
(57)
7,930

$

5,091

4,933

2,055
(557)
—
(1,019)
10,503

The net increase in our unrecognized tax benefits was $0.3 million from December 31, 2011 to December 31, 2012.  Our 
unrecognized tax benefits increased primarily because of a $1.7 million increase related to eligibility for certain tax deductions 
and a $3.8 million increase related to the application of a law change.  These increases were partially offset by a $4.0 million 
reduction as a result of a favorable ruling related to revenue attribution and a $1.2 million settlement of contested prior 
years' deductions, each related to a foreign jurisdiction.  Approximately $0.2 million of the $0.3 million net increase of 
unrecognized tax benefits increased our income tax expense in 2012.  At December 31, 2012, $6.3 million of our gross 
unrecognized tax benefits would reduce our effective tax rate, if recognized.

The liability related to our unrecognized tax benefits is $2.1 million as of December 31, 2012 and is reported as a component 
of other non-current liabilities.  The unrecognized tax benefits in the table above include the reduction of deferred tax assets, 
which are not included in the liability reported as a component of other non-current liabilities.

It is reasonably possible that the total amount of unrecognized tax benefits will decrease by up to $1.5 million within 
12 months due to an anticipated settlement of a contested prior year deduction in a foreign jurisdiction.

Our unrecognized tax benefits are subject to change as examinations of specific tax years are completed in the respective 
jurisdictions.  We believe that any taxes, or related interest and penalties, over the amounts accrued, will not have a material 
effect on our financial condition, results of operations or cash flows.  However, tax return examinations involve uncertainties 
and there can be no assurance that the outcome of examinations will be favorable.

74

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

5.  Earnings Per Share

Basic earnings per share (“EPS”) is computed by dividing net income attributable to Amkor common shareholders by the 
weighted average number of common shares outstanding during the period.  The weighted average number of common 
shares outstanding includes restricted shares held by retirement eligible recipients and is reduced for treasury stock.  Unvested 
share-based compensation awards that contain nonforfeitable rights to dividends or dividend equivalents are considered 
participating securities and are included in the computation of EPS pursuant to the two-class method.  As discussed in 
Note 3, we grant restricted shares which entitle recipients to voting and nonforfeitable dividend rights from the date of grant.  
As a result, we have applied the two-class method to determine EPS.

Diluted EPS is computed on the basis of the weighted average number of shares of common stock plus the effect of dilutive 
potential common shares outstanding during the period.  Dilutive potential common shares include outstanding stock options, 
unvested restricted shares and convertible debt.  The following table summarizes the computation of basic and diluted EPS:

Net income attributable to Amkor . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Income allocated to participating securities . . . . . . . . . . . . . . . . . . . . .
Net income available to Amkor common stockholders . . . . . . . . . . . .
Adjustment for dilutive securities on net income:

Net income allocated to participating securities in basic

calculation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest on 2.5% convertible notes due 2011, net of tax . . . . . . . . .
Interest on 6.25% convertible notes due 2013, net of tax . . . . . . . .
Interest on 6.0% convertible notes due 2014, net of tax . . . . . . . . .

For the Year Ended December 31,

2012

2011

2010

(In thousands, except per share data)

$

41,818
(212)
41,606

$

91,808
(332)
91,476

231,971
(470)
231,501

212

—

—

332

—

—

16,103

16,103

470

1,318

6,370

16,103

Net income attributable to Amkor — diluted . . . . . . . . . . . . . . . $

57,921

$

107,911

$

255,762

Weighted average shares outstanding — basic. . . . . . . . . . . . . . . . . . .
Effect of dilutive securities:

Stock options and restricted share awards . . . . . . . . . . . . . . . . . . . .
2.5% convertible notes due 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.25% convertible notes due 2013 . . . . . . . . . . . . . . . . . . . . . . . . . .
6.0% convertible notes due 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weighted average shares outstanding — diluted . . . . . . . . . . . .

Net income attributable to Amkor per common share:

160,105

190,829

183,312

241

—

—

82,658

243,004

199

—

—

82,658

273,686

363

2,918

13,351

82,658

282,602

Basic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

0.26

0.24

$

$

0.48

0.39

$

$

1.26

0.91

75

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The following table summarizes the potential shares of common stock that were excluded from diluted EPS, because the 
effect of including these potential shares was antidilutive:

Stock options and restricted share awards . . . . . . . . . . . . . . . . . . . . . .
2.5% convertible notes due 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.25% convertible notes due 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total potentially dilutive shares. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4,416

—

—

4,416

5,070

1,094

695

6,859

6,585

—

—

6,585

For the Year Ended December 31,

2012

2011

2010

(In thousands)

6.  Accounts Receivable, Trade

Accounts receivable, trade consist of the following:

Accounts receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Allowance for sales credits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowance for doubtful accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total accounts receivable trade, net of allowances . . . . . . . . . . . . . . . . . . . . . . . . . . . $

7. 

Inventories

Inventories consist of the following:

Raw materials and purchased components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Work-in-process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

December 31,

2012

2011

(In thousands)

391,969
(2,255)
(15)
389,699

$

$

301,000
(2,185)
(272)
298,543

December 31,

2012

2011

(In thousands)

166,691

60,748

227,439

$

$

158,656

39,771

198,427

76

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

8.  Property, Plant and Equipment

Property, plant and equipment consist of the following:

Land . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Land use rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buildings and improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Machinery and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software and computer equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Furniture, fixtures and other equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Construction in progress. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Less accumulated depreciation and amortization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total property, plant and equipment, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

December 31,

2012

2011

(In thousands)

106,338

$

106,338

19,945

904,919

3,332,855

191,132

19,194

24,670

19,945

871,970

3,016,430

186,378

19,736

26,818

4,599,053
(2,779,084)
1,819,969

$

4,247,615
(2,591,401)
1,656,214

The following table reconciles our activity related to property, plant and equipment additions as presented on the Consolidated 
Balance Sheets to purchases of property, plant and equipment as presented on the Consolidated Statements of Cash Flows:

For the Year Ended December 31,

2012

2011

2010

(In thousands)

Property, plant and equipment additions . . . . . . . . . . . . . . . . . . . . . . . $
Net change in related accounts payable and deposits. . . . . . . . . . . . . .
Purchases of property, plant and equipment. . . . . . . . . . . . . . . . . . . . . $

533,177

335

533,512

$

$

452,989

13,705

466,694

$

$

504,463
(58,794)
445,669

In January 2013, we sold office space and land located in Chandler, Arizona for $24 million.

In February 2013, we entered into an agreement for the purchase of land for a factory and research and development center 
in Korea.  The land purchase price is 
billion (approximately $100 million), payable in installments over the next 
ten months.

9. 

Intangible Assets

Intangibles as of December 31, 2012, consist of the following:

Patents and technology rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Customer relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total intangibles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

22,169

8,000

30,169

$

$

(19,636) $
(5,767)
(25,403) $

2,533

2,233

4,766

Gross

Accumulated
Amortization

(In thousands)

Net

77

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Intangibles as of December 31, 2011, consist of the following:

Gross

Accumulated
Amortization

(In thousands)

Net

Patents and technology rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Customer relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total intangibles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

29,774

13,625

43,399

$

$

(26,158) $
(8,859)
(35,017) $

3,616

4,766

8,382

Amortization of identifiable intangible assets was $3.9 million, $5.2 million and $5.9 million in 2012, 2011 and 2010, 
respectively.  Based on the amortizing assets recognized in our balance sheet at December 31, 2012, amortization for each 
of the next five years is estimated as follows:

2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3,364

648
355

134

96

169

Total amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

4,766

Amortization

(In thousands)

10.  Investments

Investments consist of the following:

December 31,

2012

2011

Carrying
Value

Ownership
Interest

Carrying
Value

Ownership
Interest

(In thousands, except percentages)

Investment in unconsolidated affiliate . . . . . . . . . . . $

38,690

30.0% $

36,707

30.0%

J-Devices Corporation

In October 2009, Amkor and Toshiba invested in Nakaya Microdevices Corporation (“NMD”) and formed a joint venture 
to provide semiconductor packaging and test services in Japan.  As a result of the transaction, NMD is owned 60% by the 
former shareholders of NMD, 30% by Amkor and 10% by Toshiba and has changed its name to J-Devices.

We invested ¥1.5 billion (approximately $16.7 million at inception) for our 30% equity interest and options to acquire 
additional equity interests.  The options are exercisable at our discretion and permit us to increase our ownership interest 
of J-Devices.  In January 2013, we exercised our option to increase our ownership interest of J-Devices from 30% to 60% 
for an aggregate purchase price of ¥6.7 billion (approximately $75 million).  The transaction is expected to close in April 
2013, subject to regulatory approval.  We also have options that permit us to increase our ownership interest up to 66% in 
2014 by purchasing shares owned by one of the other shareholders and up to 80% in 2015 by purchasing shares owned by 
the other shareholders.  In 2014 and beyond, Toshiba has the option, at its discretion, to sell shares it owns to us if we have 
exercised any of our options.  After we own 80% or more shares, the original shareholders of NMD have a put option which 
allows them to sell their shares to us.  The exercise price for all options is payable in cash and is to be determined using a 
formula  based  primarily  upon  the  net  book  value  and  a  multiple  of  earnings  before  interest,  taxes,  depreciation  and 
amortization of J-Devices.

78

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

J-Devices is a separate business and is not integrated with our existing Japan-based businesses.  The governance provisions 
applicable to J-Devices restrict our ability, even after obtaining majority ownership, to cause J-Devices to take certain actions 
without the consent of the other investors.  Accordingly, we account for our investment in J-Devices using the equity method 
of accounting and will continue to account for J-Devices under the equity method of accounting after increasing our ownership 
interest as discussed above.

Under the equity method of accounting, we recognize our proportionate share of J-Devices’ net income or loss, which is 
after J-Devices' income taxes in Japan, during each accounting period as a change in our investment in unconsolidated 
affiliate.  J-Devices’ financial information is converted to U.S. GAAP and translated into U.S. dollars using Japanese yen 
as the functional currency.  In addition to our proportionate share of J-Devices’ income or loss, we record equity method 
adjustments for the amortization of a $1.9 million basis difference as our carrying value exceeded our equity in the net 
assets of J-Devices at the date of investment and other adjustments required by the equity method.  At December 31, 2012 
and 2011, the unamortized basis difference was $0.4 million and $0.9 million, respectively.  In 2012, 2011 and 2010, our 
equity earnings in J-Devices, net of J-Devices' income taxes in Japan, was $5.6 million, $7.1 million and $6.4 million, 
respectively.

In conjunction with entering into the joint venture, one of our existing subsidiaries in Japan purchased packaging and test 
equipment from Toshiba for ¥4.0 billion (approximately $44.7 million at inception) and leased the equipment to J-Devices 
under an agreement which was accounted for as a direct financing lease.  In October 2011, J-Devices purchased $3.9 million 
of this leased packaging and test equipment from our subsidiary.  The equipment lease expired in October 2012 and J-
Devices exercised its option to purchase the remaining packaging and test equipment for ¥761.4 million (approximately 
$8.8 million).  During 2012, we received lease payments of ¥710.4 million (approximately $9.7 million), which included 
imputed interest.  In 2012, 2011 and 2010, we recognized $0.3 million, $0.8 million and $1.1 million in interest income, 
respectively.  Our lease receivable, net was $20.2 million as of December 31, 2011, and was recorded as a component of 
other accounts receivable.

11.  Accrued Expenses

Accrued expenses consist of the following:

Payroll and benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Deferred revenue and customer advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued royalties (Note 16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued severance plan obligations (Note 13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income taxes payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,

2012

2011

(In thousands)

56,651

$

52,773

33,324

19,048

9,516

8,341

33,311

59,928

34,672

—

11,941

7,476

4,446

39,824

Total accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

212,964

$

158,287

Accrued royalties relate to our estimate of royalties due as a result of interim orders received from an arbitration panel in 
July 2012 and February 2013 related to our pending patent license arbitration (Note 16).

79

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

12.  Debt

Following is a summary of short-term borrowings and long-term debt:

December 31,

2012

2011

(In thousands)

Debt of Amkor Technology, Inc.
Senior secured credit facilities:

$150 million revolving credit facility, LIBOR plus 1.50%-2.25%, due

June 2017 (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

— $

—

Senior notes:

7.375% Senior notes, due May 2018. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.625% Senior notes, due June 2021, $75 million related party . . . . . . . . . . . . . . . . .
6.375% Senior notes, due October 2022 (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

345,000
400,000
300,000

345,000
400,000
—

Senior subordinated notes:

6.0% Convertible senior subordinated notes, due April 2014, $150 million related 
party (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

250,000

250,000

Debt of subsidiaries:

Amkor Technology Korea, Inc.:

$41 million revolving credit facility, foreign currency funding-linked base rate 

plus 2.33%, due June 2013 (4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Term loan, foreign currency funding-linked base rate plus 2.30%, due

March 2015 (5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Term loan, LIBOR plus 3.90% or 3.94%, due July 2017 (6) . . . . . . . . . . . . . . . . .
Term loan, LIBOR plus 3.70%, due December 2019 (7). . . . . . . . . . . . . . . . . . . .
Term loan, bank funding rate-linked base rate plus 1.99%, due May 2013 (5) . . .
Term loan, bank base rate plus 0.5%, due April 2014 (2) . . . . . . . . . . . . . . . . . . .
Term loan, bank base rate plus 1.06% or 1.16%, due July 2014 (6) . . . . . . . . . . .
Term loan, bank funding rate-linked base rate plus 1.7%, due March 2016 (2). . .

Other:

Revolving credit facility, TAIFX plus a bank-determined spread, due

April 2015 (Taiwan) (8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Term loan, TIBOR plus 0.8%, due September 2012 (Japan) (2) . . . . . . . . . . . . . .
Term loan, LIBOR plus 2.8%, due 12 months from date of draw (China) (2). . . .

Term loan, TAIFX plus a bank-determined spread, due April 2015

(Taiwan) (2)(8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Less: Short-term borrowings and current portion of long-term debt . . . . . . . . . . . . . . . .
Long-term debt (including related party) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

—

—

100,000
137,000
13,000
—
—
—
—

—
—
—

—
—
—
103,000
107,140
50,000
12,512

—
9,495
20,000

—
1,545,000
—
1,545,000

$

49,504
1,346,651
(59,395)
1,287,256

(1)  In June 2012, Amkor Technology, Inc. ("ATI") amended and restated the $100.0 million senior secured revolving 
credit facility to increase the facility amount to $150.0 million and extend its term by two years to June 2017.  The 
facility has a letter of credit sub-limit of $25.0 million.  As amended, interest is charged under the facility at a 
floating rate based on the base rate in effect from time to time plus the applicable margins which range from 0.25% 
to 1.00% for base rate revolving loans, or LIBOR plus 1.5% to 2.25% for LIBOR revolving loans.  The borrowing 
base for the revolving credit facility is based on the amount of our eligible accounts receivable, which exceeded 
$150.0 million as of December 31, 2012.  In connection with amending and extending the facility, ATI capitalized 
$0.8 million of deferred debt issuance costs for the year ended December 31, 2012.

80

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

(2)  In September 2012, ATI issued $300.0 million of 6.375% Senior Notes due October 2022 (the “2022 Notes”).  The 
2022 Notes were issued at par and are senior unsecured obligations.  Interest is payable semi-annually on April 1 
and October 1 of each year, commencing on April 1, 2013.  The 2022 Notes were registered in January 2013.  We 
used $224.9 million of the net proceeds from the issuance of the 2022 Notes to repay subsidiary debt.  We incurred 
$5.2 million of debt issuance costs associated with the 2022 Notes.  In October 2012, we repaid the term loans due 
2014 and 2016 and recorded a $1.2 million loss on extinguishment related to prepayment fees of $0.5 million and 
a charge for the write-off of associated unamortized deferred debt issuance costs of $0.7 million.

(3)  In April 2009, we issued $250.0 million of our 6.0% Convertible Senior Subordinated Notes due April 2014 (the 
“2014 Notes”).  The 2014 Notes are convertible at any time prior to the maturity date into our common stock at a 
price of approximately $3.02 per share, subject to adjustment.  The 2014 Notes are subordinated to the prior payment 
in full of all of our senior debt.  The 2014 Notes were purchased by certain qualified institutional buyers and 
Mr. James J. Kim, our Executive Chairman of the Board of Directors, and an entity controlled by Mr. Kim.  Mr. Kim 
and his affiliate purchased $150.0 million of the 2014 Notes.  

(4)  In June 2012, Amkor Technology Korea, Inc., a Korean subsidiary (“ATK”) entered into a $41.0 million revolving 
credit facility with a Korean Bank with a term of 12 months.  The loan bears interest at the foreign currency funding-
linked base rate plus 2.33%.  Principal is payable upon maturity.  The loan is collateralized with substantially all 
land, buildings and equipment at our ATK facilities.

(5)  In March 2012, ATK repaid the remaining outstanding balance of the ATK term loan due May 2013 by entering 
into a $100.0 million term loan with the same Korean bank.  Principal is payable upon maturity.  The term loan is 
collateralized by substantially all the land, factories and equipment located at our ATK facilities.

(6)  In  June  2012, ATK  entered  into  a  $150.0  million,  five-year  secured  term  loan  with  a  Korean  bank  which  is 
collateralized by substantially all the land, factories and equipment located at our ATK facilities.  The $150.0 
million consists of two components, $50.0 million of the proceeds ("Tranche A") which was used to fully repay 
the ATK term loan due July 2014 and $100.0 million ("Tranche B") to fund capital additions.  There was $13.0 
million available under Tranche B as of December 31, 2012, which was subsequently drawn in January 2013.  
Principal is payable upon maturity.

(7)  In November 2012, ATK entered into a $100.0 million, seven-year secured term loan with a Korean bank which 
is collateralized by substantially all the land, factories and equipment located at our ATK facilities.  Interest is 
payable quarterly in arrears and principal is payable upon maturity.  In February 2013, we borrowed an additional 
$10.0 million.

(8)  In January 2012, Amkor Technology Taiwan Ltd, a subsidiary in Taiwan, converted the existing NT$1.5 billion 
term loan from a Taiwan to a U.S. dollar denominated term loan.  The term loan previously bore interest at the 90-
day primary commercial paper rate plus 0.835% and now bears interest at the Taipei Foreign Exchange ("TAIFX") 
six month U.S. dollar rate plus a bank-determined spread.  In September 2012, as noted above at (2), the term loan 
was paid off in full.  In addition, the term loan was converted to a revolving credit facility.  All other terms and 
conditions remain the same.  At conversion, availability under the revolving credit facility was $44.0 million and 
subsequent availability steps down $5.0 million every six months from the original available balance, with a balloon 
payment of the remaining balance at maturity.  As of December 31, 2012, $39.0 million was available to be drawn.  

Interest Rates

As of December 31, 2012, we had a total of $1,545.0 million of debt of which 83.8% was fixed rate debt and 16.2% was 
variable rate debt.  As of December 31, 2011, we had a total of $1,346.7 million of debt of which 73.9% was fixed rate debt 
and 26.1% was variable rate debt.  The fixed rate debt consists of senior notes and senior subordinated notes.  Our variable 
rate debt principally relates to our foreign borrowings and revolving lines of credit and any amounts outstanding under our 
$150.0 million senior and secured revolving line of credit.  

81

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Interest is payable semiannually on each of the senior notes and senior subordinated notes and interest is payable semi-
annually, quarterly or monthly on the variable rate debt.  Refer to the table above for the interest rates on our fixed rate 
debt and to the below table for the interest rates on our variable rate debt.  

Amkor Technology, Inc.

Amkor Technology Korea, Inc.:

Term loan, foreign currency funding-linked base rate plus 2.30%, due March 

2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Term loan, LIBOR plus 3.90%, due July 2017 (Tranche A) . . . . . . . . . . . . . . . . .
Term loan, LIBOR plus 3.94%, due July 2017 (Tranche B) . . . . . . . . . . . . . . . . .
Term loan, LIBOR plus 3.70%, due December 2019. . . . . . . . . . . . . . . . . . . . . . .
Term loan, bank funding rate-linked base rate plus 1.99%, due May 2013 . . . . . .
Term loan, bank base rate plus 0.5%, due April 2014 . . . . . . . . . . . . . . . . . . . . . .
Term loan, bank base rate plus 1.06% or 1.16%, due July 2014 . . . . . . . . . . . . . .
Term loan, bank funding rate-linked base rate 1.7%, due March 2016 . . . . . . . . .

Other:

Term loan, TIBOR plus 0.8%, due September 2012 (Japan) . . . . . . . . . . . . . . . . .
Term loan, LIBOR plus 2.8%, due 12 months from date of draw (China) . . . . . .
Term loan, TAIFX plus a bank-determined spread, due April 2015 (Taiwan). . . .

Compliance with Debt Covenants

Variable Interest Rates at 
December 31,

2012

2011

4.21%

4.26%

4.26%

4.01%

—

—
—

—

—

—

—

—

—

—

—

5.72%

5.08%
3.96%

5.63%

1.30%

3.27%

2.40%

The debt of Amkor Technology, Inc. is structurally subordinated in right of payment to all existing and future debt and other 
liabilities of our subsidiaries.  Our collateralized bank debt agreements and the indentures governing our senior and senior 
subordinated notes contain a number of affirmative and negative covenants which restrict our ability to pay dividends and 
could restrict our operations.  We were in compliance with all of our covenants as of December 31, 2012 and 2011.

Maturities

Total Debt

(In thousands)

Payments due for the year ending December 31,
2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

250,000

100,000

—

137,000

1,058,000

Total debt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

1,545,000

82

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

13.  Pension and Severance Plans

U.S. Defined Contribution Plan

We have a defined contribution plan covering substantially all U.S. employees.  Eligible employees can contribute up to 
60% of their salary, subject to annual Internal Revenue Service limitations.  We match in cash 75% of the employee’s 
contributions up to a defined maximum as determined on an annual basis.  The expense for this plan was $1.8 million in 
2012 and $1.9 million in 2011 and 2010.

Taiwan Defined Contribution Plan

We have a defined contribution plan under the Taiwanese Labor Pension Act in Taiwan whereby employees can contribute 
up to 6% of salary.  We contribute no less than 6% of the employees’ salaries up to a defined maximum into their individual 
accounts.  The expense for this plan was $2.3 million in 2012 and 2011 and $2.0 million in 2010.

Korean Severance Plan

Our Korean subsidiary participates in an accrued severance plan that covers employees with at least one year of service.  
To the extent eligible employees are terminated, our Korean subsidiary would be required to make lump-sum severance 
payments on behalf of these eligible employees based on their length of service, seniority and rate of pay at the time of 
termination.  Accrued severance benefits are estimated assuming all eligible employees were to terminate their employment 
at the balance sheet date.  Our contributions to the National Pension Plan of the Republic of Korea are deducted from accrued 
severance benefit liabilities.

The changes to the balance of our Korean severance accrual are as follows:

Balance at the beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Provision of severance benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Severance payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss (gain) on foreign currency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Payments remaining with the Korean National Pension Fund . . . . . . .
Total severance obligation balance at the end of year . . . . . . . . . . . . .
Less current portion of accrued severance obligation (Note 11) . . . . .
Non-current portion of severance obligation . . . . . . . . . . . . . . . . . . . . $

For the Year Ended December 31,

2012

2011

2010

(In thousands)

106,715

$

88,899

$

19,667
(8,520)
8,900

126,762
(249)
126,513

9,516

26,705
(6,717)
(2,172)
106,715
(239)
106,476

7,476

116,997

$

99,000

$

69,120

23,792
(6,846)
2,833

88,899
(257)
88,642

6,131

82,511

We completed early voluntary retirement programs at our Korean subsidiary in 2012 and 2010 (see Note 19).

Foreign Defined Benefit Pension Plans

Our subsidiaries in Japan, the Philippines and Taiwan sponsor defined benefit plans (the “Plans”) that cover substantially 
all of their respective employees who are not covered by statutory plans.  Charges to expense are based upon costs computed 
by independent actuaries.

83

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The following table sets forth the Plans’ benefit obligations, fair value of the Plans’ assets and the funded status of the Plans 
at December 31, 2012 and 2011.

Change in projected benefit obligation:

Projected benefit obligation at beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Service cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuarial (gains) losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Plan amendments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Effects of curtailment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settlement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign exchange loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Projected benefit obligation at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Change in plan assets:

Fair value of plan assets at beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actual gain on plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Employer contributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settlement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign exchange gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fair value of plan assets at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Funded status of the Plans at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

For the Year Ended
December 31,

2012

2011

(In thousands)

78,897

$

72,678

6,362

3,270
(1,168)
(3,899)
—

554
(4,925)
1,437

80,528

48,801

3,500

8,687
(4,925)
(1,168)
3,251

58,146
(22,382) $

5,744

3,274
(849)
4,755

25

1,016
(9,563)
1,817

78,897

54,737

815

3,629
(9,563)
(849)
32

48,801
(30,096)

The  accrued  benefit  liability,  included  in  pension  and  severance  obligations  in  the  Consolidated  Balance  Sheets,  as  of 
December 31, 2012 and 2011 was $22.4 million and $30.1 million, respectively. The accumulated benefit obligation as of 
December 31, 2012 and 2011 was $54.6 million and $52.5 million, respectively.

84

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The following table sets forth, by component, the change in accumulated other comprehensive income related to our Plans:

Balance at December 31, 2010, net of tax ($1.0 million) . . . . . $
Amortization included in net periodic pension cost, net of

tax (less than $0.1 million) . . . . . . . . . . . . . . . . . . . . . . .

Net loss arising during period, net of tax

($0.4 million) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustments to unrealized components of defined benefit
pension plan included in other comprehensive income,
net of tax ($0.4 million) . . . . . . . . . . . . . . . . . . . . . . . . .

Balance at December 31, 2011, net of tax ($1.4 million) . . . . . $
Amortization included in net periodic pension cost, net of 
tax (less than $0.1 million) . . . . . . . . . . . . . . . . . . . . . . .

Net gain arising during period, net of tax

(less than $0.1 million) . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to unrealized components of defined benefit 
pension plan included in other comprehensive income, 
net of tax ($0.1 million) . . . . . . . . . . . . . . . . . . . . . . . . .

Balance at December 31, 2012, net of tax ($1.3 million) . . . . . $

Initial Net
Obligation

Prior Service
Cost

Actuarial Net
(Loss) Gain

Total

(65) $

(In thousands)
(261) $

(4,384) $

(4,710)

7

—

255

65

327

(25)

(6,102)

(6,127)

7
(58) $

230
(31) $

(6,037)
(10,421) $

(5,800)
(10,510)

6

—

219

—

181

406

4,731

4,731

6
(52) $

219

188

$

4,912
(5,509) $

5,137
(5,373)

Estimated amortization of cost to be included in 2013 net

periodic pension cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

7

$

258

$

140

$

405

Information for pension plans with benefit obligations in excess of plan assets are as follows:

December 31,

2012

2011

(In thousands)

Plans with underfunded or non-funded projected benefit obligation:

Aggregate projected benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Aggregate fair value of plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

80,528

$

58,146

Plans with underfunded or non-funded accumulated benefit obligation:

Aggregate accumulated benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aggregate fair value of plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17,816
—

78,897

48,801

22,669
—

85

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The following table sets forth the net periodic pension costs:

For the Year Ended December 31,

2012

2011

2010

(In thousands)

6,362

$

5,744

$

Components of net periodic pension cost and total pension expense:

Service cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Interest cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected return on plan assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amortization of transition obligation. . . . . . . . . . . . . . . . . . . . . . . .
Amortization of prior service cost . . . . . . . . . . . . . . . . . . . . . . . . . .
Recognized actuarial loss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net periodic pension cost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Curtailment loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settlement (gain) loss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total pension expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

3,270
(3,188)
7

291

218

6,960

1,089
(100)
7,949

3,274
(3,119)
8

269

83

6,259

1,016

565

5,934

3,736
(2,336)
13

295

27

7,669

—

—

$

7,840

$

7,669

The  following  table  sets  forth  the  weighted-average  assumptions  used  in  computing  the  net  periodic  pension  cost  and 
projected benefit obligation at year end:

For the Year Ended December 31,

2012

2011

2010

Discount rate for determining net periodic pension cost . . . . . . . . . . .
Discount rate for determining benefit obligations at year end . . . . . . .
Rate of compensation increase for determining net periodic

pension cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rate of compensation increase for determining benefit obligations

at year end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Expected rate of return on plan assets for determining net periodic

pension cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2%

4.0%

4.5%

4.1%

6.3%

5.2%

4.2%

4.6%

4.5%

6.4%

6.4%

5.2%

5.7%

4.6%

5.4%

The measurement date for determining the Plans’ assets and benefit obligations is December 31, each year.  Discount rates 
are generally derived from yield curves constructed from high-quality corporate or foreign government bonds in 2012 and 
2011, for which the timing and amount of cash outflows approximate the estimated payouts.

The expected rate of return assumption is based on weighted-average expected returns for each asset class.  Expected returns 
reflect a combination of historical performance analysis and the forward-looking views of the financial markets and include 
input from our actuaries.  We have no control over the direction of our investments in our defined benefit plans in Taiwan 
as the local Labor Standards Law Fund mandates such contributions into a cash account balance at the Bank of Taiwan 
(formerly known as the Central Trust of China).  The defined benefit pension plans in Japan are non-funded plans, and as 
such, no assets exist related to these plans.  Our investment strategy for our Philippine defined benefit plan is based on long-
term, sustained asset growth through low to medium risk investments.  The current rate of return assumption targets are 
based on an asset allocation strategy for our Philippine plan assets of 65% to 75% debt securities (primarily Philippines 
domestic and U.S.) and 25% to 35% equity securities (primarily U.S. and Europe).  The remainder of the portfolio will 
contain other investments such as cash, short-term investments and common stock.  Philippine plan assets included Amkor 
common stock totaling $0.4 million in 2012 and 2011.

86

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The fair value of our pension plan assets at December 31, 2012, by asset category utilizing the fair value hierarchy as 
discussed in Note 15, is as follows:

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Equity securities

Foreign securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
U.S. securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

U.S. fixed income funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bonds

U.S. government bonds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign government bonds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign treasury notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Taiwan retirement fund. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)

Significant
Other 
Observable
Inputs
(Level 2)

(In thousands)

Total

1,348

$

— $

1,348

394

9,046

9,440

1,714

2,070

406

27,503

29,979

8,720

377

—

—

—

—

6,448

—

—

6,448

—

120

394

9,046

9,440

1,714

8,518

406

27,503

36,427

8,720

497

Total. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

51,578

$

6,568

$

58,146

The fair value of our pension plan assets at December 31, 2011, by asset category utilizing the fair value hierarchy as 
discussed in Note 15, is as follows:

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Equity securities

Foreign securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
U.S. securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

U.S. fixed income funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bonds

U.S. government bonds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign treasury notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Taiwan retirement fund. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)

Significant
Other 
Observable
Inputs
(Level 2)

(In thousands)

Total

3,242

$

— $

3,242

283

4,474

4,757

1,627

2,007

23,485

25,492

7,991

346

—

—

—

—

5,192

—

5,192

—

154

283

4,474

4,757

1,627

7,199

23,485

30,684

7,991

500

Total. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

43,455

$

5,346

$

48,801

87

 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The Taiwan  retirement  fund  category  of  our  plan  assets  represents  accounts  that  our  subsidiaries  in Taiwan  have  in  a 
government labor retirement fund in the custody of the Bank of Taiwan.  The accounts earn a minimum guaranteed rate of 
return.  We have no control over the investment decisions of the fund which is invested in a mix of cash, domestic and 
foreign equity securities and domestic and foreign debt securities.

Our other category of plan assets included receivables and payables at December 31, 2012 and December 31, 2011.  

We contributed $8.7 million, $3.6 million and $7.9 million to the Plans during 2012, 2011 and 2010, respectively, and we 
expect to contribute $2.4 million during 2013.  We closely monitor the funded status of the Plans with respect to legislative 
requirements.  We intend to make at least the minimum contribution required by law each year.

The estimated future benefit payments related to our foreign defined benefit plans are as follows:

2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2018 to 2022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3,027

4,327

3,628

3,953

4,208

34,036

Benefit
Payments

(In thousands)

14.  Treasury Stock

Stock Repurchase Program

Our Board of Directors previously authorized the repurchase of up to $300.0 million of our common stock, $150.0 million 
in August 2011 and $150.0 million in February 2012, exclusive of any fees, commissions or other expenses.  The purchase 
of stock under the program may be made in the open market or through privately negotiated transactions.  The timing, 
manner, price and amount of any repurchases will be determined by us at our discretion and will depend upon a variety of 
factors including economic and market conditions, the cash needs and investment opportunities for the business, price, 
applicable legal requirements and other factors.  Our stock repurchase program has been and is expected to be funded with 
available cash and may be suspended or discontinued at any time.  All shares repurchased are recorded as treasury stock at 
cost.

During the year ended December 31, 2012, we purchased 16.5 million shares of common stock for an aggregate purchase 
price of $79.5 million, net of $0.3 million of commissions, for an average price of $4.83.  During the year ended December 31, 
2011, we purchased 28.6 million shares of common stock for an aggregate purchase price of $128.9 million, net of $0.6 
million of commissions, for an average price of $4.51.  At December 31, 2012, approximately $91.6 million was available 
to repurchase common stock pursuant to the stock repurchase program.  At December 31, 2011, $1.1 million of the $128.9 
million amount repurchased remained unpaid and was recorded in accrued expenses.  At December 31, 2012 there were no 
unsettled shares.

Shares for Tax Withholding

We withheld 0.1 million shares for each of the years ended December 31, 2012 and 2011, from restricted shares that vested 
during the respective period to satisfy tax withholding obligations.  Minimum tax withholding obligations that arose on the 
vesting of restricted shares were $0.6 million and $0.8 million for the years ended December 31, 2012 and 2011, respectively.  
These shares are reflected as treasury stock at cost.

88

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

15.  Fair Value Measurements

The accounting framework for determining fair value includes a hierarchy for ranking the quality and reliability of the 
information used to measure fair value, which enables the reader of the financial statements to assess the inputs used to 
develop those measurements.  The fair value hierarchy consists of three tiers as follows: Level 1, defined as quoted market 
prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 that are observable, 
either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, 
model-based valuation techniques for which all significant assumptions are observable in the market or other inputs that 
are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities 
and Level 3, defined as unobservable inputs that are not corroborated by market data.

Our assets and liabilities recorded at fair value on a recurring basis include cash equivalent money market funds and restricted 
cash money market funds.  Cash equivalent money market funds and restricted cash money market funds are invested in 
U.S. money market funds and various U.S. and foreign bank operating and time deposit accounts, which are due on demand 
or carry a maturity date of less than three months when purchased.  No restrictions have been imposed on us regarding 
withdrawal of balances with respect to our cash equivalents as a result of liquidity or other credit market issues affecting 
the money market funds we invest in or the counterparty financial institutions holding our deposits.  Money market funds 
are valued using quoted market prices in active markets for identical assets.  We also measure certain assets and liabilities, 
including property, plant and equipment, intangible assets and an equity investment, at fair value on a nonrecurring basis.  
For the year ended December 31, 2012, such measurements included the consideration of third party valuation reports based 
on a combination of market and cost approach valuation techniques.  The valuation reports contained various inputs including 
semiconductor industry data, replacement costs, price lists and general information regarding the assets being evaluated.  
Nonrecurring fair value measurements related to property, plant and equipment impairments reflect the fair value of the 
assets at the dates the impairments were taken during the period.  Our fair value measurements consist of the following:

December 31,

2012

2011

(In thousands)

Recurring fair value measurements:

Cash equivalent money market funds (Level 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Restricted cash money market funds (Level 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

151,066

$

165,540

2,680

2,680

Nonrecurring fair value measurements:

Long-lived assets held for use or disposal (Level 3). . . . . . . . . . . . . . . . . . . . . . . . . . $

868

Losses for the Year Ended December 31,

2012

2011

2010

(In thousands)

Nonrecurring fair value measurements:

Long-lived assets held for use or disposal (Level 3) . . . . . . . . . . . . $

763

$

3,336

$

2,061

In 2012, 2011 and 2010, all impairment losses on property, plant and equipment were recorded in cost of sales with the 
exception of $0.6 million recorded in selling, general, and administrative expenses in 2010.

89

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

We measure the fair value of our debt for disclosure purposes.  The following table presents the fair value and carrying 
value of financial instruments that are not recorded at fair value on a recurring basis:

December 31, 2012

December 31, 2011

Fair
Value

Carrying
Value

Fair
Value

Carrying
Value

(In thousands)

Senior notes (Level 1) . . . . . . . . . . . . . . . . . . . . . . . . $
Convertible senior subordinated notes (Level 1) . . .
Subsidiary revolvers and term loans (Level 2) . . . . .

1,061,945

$

1,045,000

$

737,049

$

371,975

269,200

250,000

250,000

405,625

352,679

745,000

250,000

351,651

Total debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

1,703,120

$

1,545,000

$

1,495,353

$

1,346,651

The estimated fair value of the debt is based primarily on quoted market prices reported on or near the respective balance 
sheet dates for our senior and senior subordinated notes.  The estimated fair value for the debt of our subsidiaries is based 
on market based assumptions including current borrowing rates for similar types of borrowing arrangements adjusted for 
duration, optionality and risk profile.

16.  Commitments and Contingencies

We have a letter of credit sub-facility of $25.0 million under our $150.0 million senior secured revolving credit facility that 
matures in June 2017.  As of December 31, 2012, we had $0.3 million of standby letters of credit outstanding and had an 
additional $24.7 million available for letters of credit.  Such standby letters of credit are used in the ordinary course of our 
business and are collateralized by our cash balances.

We generally warrant that our services will be performed in a professional and workmanlike manner and in compliance 
with our customers’ specifications.  We accrue costs for known warranty issues.  Historically, our warranty costs have been 
immaterial.

Legal Proceedings

We are involved in claims and legal proceedings and may become involved in other legal matters arising in the ordinary 
course of our business.  We evaluate these claims and legal matters on a case-by-case basis to make a determination as to 
the impact, if any, on our business, liquidity, results of operations, financial condition or cash flows.  Except as indicated 
below, we believe that the ultimate outcome of these claims and proceedings, individually and in the aggregate, will not 
have a material adverse impact to us.  Our evaluation of the potential impact of these claims and legal proceedings on our 
business, liquidity, results of operations, financial condition or cash flows could change in the future.

Arbitration Proceedings with Tessera, Inc.

On March 2, 2006, Tessera, Inc. (“Tessera”) filed a request for arbitration with the International Court of Arbitration of the 
International Chamber of Commerce (the “ICC”), captioned Tessera, Inc. v. Amkor Technology, Inc. (the "First Tessera 
Arbitration").  The subject matter of the arbitration was a license agreement (“License Agreement”) entered into between 
Tessera and our predecessor in 1996.  In its rulings in 2008 and 2009, the arbitration panel in the First Tessera Arbitration 
found that most of the packages accused by Tessera were not subject to the patent royalty provisions of the License Agreement, 
awarded Tessera $60.6 million as damages for some infringing packages for the period March 2, 2002 through December 1, 
2008, and denied Tessera's request to terminate the License Agreement.  The final award, plus interest and the royalties 
through December 2008 amounting to $64.7 million, was expensed in 2008 and paid when due in February 2009.

90

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Following Tessera's favorable decision in the U.S International Trade Commission (the “ITC”) in May 2009 against some 
of our customers, Tessera began making repeated statements to customers and others claiming that we were in breach of 
the royalty provisions of the License Agreement.  We informed Tessera that we believed we were in full compliance with 
the License Agreement and of our intent to continue making the royalty payments when due in accordance with the terms 
of the License Agreement.

On August 7, 2009, we filed a request for arbitration in the ICC against Tessera, captioned Amkor Technology, Inc. v. Tessera, 
Inc. (the “Second Tessera Arbitration”).  We instituted the action in order to obtain declaratory relief confirming that we 
were a licensee in good standing under our 1996 License Agreement with Tessera and that the License Agreement remained 
in effect.

On November 2, 2009, Tessera filed an answer to our request for arbitration and counterclaims in the ICC.  In the answer 
and counterclaims, Tessera denied Amkor’s claims, alleged breach of contract, sought termination of the License Agreement 
and asserted that Amkor owed Tessera additional royalties under the License Agreement, including royalties for use of 
thirteen U.S. and six foreign patents that Tessera did not assert in the First Tessera Arbitration.  Tessera later dropped its 
claims on five of those patents.  On February 17, 2011, Tessera sent Amkor a notice of termination of the License Agreement.

In May 2011, Tessera filed a new request for arbitration against Amkor with the ICC captioned Tessera, Inc. v. Amkor 
Technology, Inc. (the "Third Tessera Arbitration") seeking undisclosed damages and a declaration that the License Agreement 
had been terminated.

In July 2011, the panel issued its decision in the first phase of the Second Tessera Arbitration.  The panel found that we did 
not owe any of the approximately $18 million of additional royalties claimed by Tessera for packages assembled by us for 
customers who had been involved in proceedings with Tessera before the ITC.  Our request for a declaration confirming 
that we were in compliance with the License Agreement and that our royalty calculations from the First Tessera Arbitration 
were correct was denied.  The panel found that we had materially breached the License Agreement by not paying the full 
amount of royalties due and by failing to satisfy the audit provisions of the License Agreement.  The final amount of royalties 
and interest owed relating to the first phase of the Second Tessera Arbitration was approximately $0.5 million, which has 
been fully paid.

In July 2012, the panel issued an interim order in the second phase of the Second Tessera Arbitration finding that royalties 
are due to Tessera on three of the ten asserted U.S. patents remaining at issue but not on the other seven, royalties are due 
on four foreign patents related to U.S. patents that the panel found to be royalty bearing in the First Tessera Arbitration and 
that the License Agreement was terminated by Tessera as of February 17, 2011.  We do not believe the termination of the 
License Agreement will interfere in any significant way with our ability to use our technology, conduct our business or 
service our customers.  The panel also raised the question of whether Tessera intends to pursue its allegations regarding 
other patents which have not yet been addressed by the panel, and in July 2012, Tessera informed the panel that it intends 
to proceed on its claims related to three additional U.S. patents.

In February 2013, the panel issued another interim order in the second phase of the Second Tessera Arbitration.  In the latest 
ruling, the panel determined that flip chip only packages and pin grid array only packages are not royalty bearing but that 
certain other packages, principally certain wirebond and combination flip chip wirebond packages are royalty bearing.  The 
panel reserved for later decision the issues of the amount of royalties and pre-judgment interest due, and the allocation of 
costs.  In February 2013, Tessera publicly announced its intention to seek an amount in excess of $150 million in the 
arbitration.

During 2012, we recorded a charge of $56.0 million, based on our estimates of the damages and interest due to date in 
respect of the Second Tessera Arbitration.  We believe that $56.0 million of damages and interest is a reasonable estimate 
of the low end of the possible range of loss up to the amount claimed by Tessera.  Because we believe that no amount in 
the range constitutes a better estimate than any other amount, we recorded the $56.0 million estimate.  Of the total charge, 
$50.0 million was recorded as cost of goods sold and $6.0 million was recorded as interest expense.  The ultimate amount 
of damages and interest is subject to determination by the panel based on a number of complex factors, including the panel's 
determination of which package families the patents apply to, whether those packages meet criteria previously laid out by 

91

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

the panel, overlaps among the packages, the final date through which royalties are applicable and other factors.  The final 
award could be more than the amount recognized, and we expect to record our estimate of interest accruing with the passage 
of time and may record additional charges as information develops or upon the issuance of the final award.

In August 2012, we paid $19.9 million to Tessera representing the undisputed amount and related interest that we owe in 
connection with the Second Tessera Arbitration.

In July 2012, Tessera filed a complaint in the U.S. District Court for the District of Delaware.  The complaint seeks injunctive 
relief and damages with respect to Amkor's alleged infringement of one of the U.S. patents that the panel found to be royalty 
bearing in the Second Tessera Arbitration.  We strongly dispute Tessera's claims and intend to vigorously defend against 
them.  However, the outcome of this matter is uncertain, and an adverse decision could have a material adverse effect on 
our results of operations, financial condition and cash flows.

Amkor Technology, Inc. v. Carsem (M) Sdn Bhd, Carsem Semiconductor Sdn Bhd, and Carsem Inc.

On November 17, 2003, we filed a complaint against Carsem (M) Sdn Bhd, Carsem Semiconductor Sdn Bhd, and Carsem 
Inc. (collectively “Carsem”) with the ITC in Washington, D.C., alleging infringement of our United States Patent Nos. 
6,433,277; 6,455,356 and 6,630,728 (collectively the “Amkor Patents”) and seeking, under Section 337 of the Tariff Act 
of 1930, an exclusion order barring the importation by Carsem of infringing products.  We allege that by making, using, 
selling, offering for sale or importing into the U.S. the Carsem Dual and Quad Flat No-Lead Packages, Carsem has infringed 
on one or more of our MicroLeadFrame packaging technology claims in the Amkor Patents.

On November 18, 2003, we also filed a complaint in the U.S. District Court for the Northern District of California, alleging 
infringement of the Amkor Patents and seeking an injunction enjoining Carsem from further infringing the Amkor Patents, 
compensatory damages and treble damages due to willful infringement plus interest, costs and attorney’s fees.  This District 
Court action has been stayed pending resolution of the ITC case.

The ITC Administrative Law Judge (“ALJ”) conducted an evidentiary hearing during July and August of 2004 in Washington 
D.C. and, on November 18, 2004, issued an Initial Determination that Carsem infringed some of our patent claims relating 
to our MicroLeadFrame package technology, that some of our 21 asserted patent claims are valid, that we have a domestic 
industry in our patents and that all of our asserted patent claims are enforceable.  However, the ALJ did not find a statutory 
violation of Section 337 of the Tariff Act.

We filed a petition in November 2004 to have the ALJ’s ruling reviewed by the full ITC.  On March 31, 2005, the ITC 
ordered a new claims construction related to various disputed claim terms and remanded the case to the ALJ for further 
proceedings.  On November 9, 2005, the ALJ issued an Initial Determination on remand finding that Carsem infringed some 
of our patent claims and that Carsem had violated Section 337 of the Tariff Act.

On remand, the ITC had also authorized the ALJ to reopen the record on certain discovery issues related to a subpoena of 
documents from a third party.  An order by the U.S. District Court for the District of Columbia enforcing the subpoena 
became final on January 9, 2009, and the third party produced documents pursuant to the subpoena.

On July 1, 2009, the ITC remanded the investigation for a second time to the ALJ to reopen the record to admit into evidence 
documents and related discovery obtained from the enforcement of the above-referenced third-party subpoena.

Following a two-day hearing, on October 30, 2009, the ALJ issued an Initial Determination reaffirming his prior ruling that 
the Carsem Dual and Quad Flat No-Lead Packages infringe some of Amkor’s patent claims relating to MicroLeadFrame 
package technology, that all of Amkor’s asserted patent claims are valid and that Carsem violated Section 337 of the Tariff 
Act.

On December 16, 2009, the ITC ordered a review of the ALJ’s Initial Determination.  On February 18, 2010, the Commission 
reversed a finding by the ALJ on the issue of whether a certain invention constitutes prior art to Amkor’s asserted patents.  
The ITC remanded the investigation to the ALJ to make further findings in light of the ITC's ruling.  On March 22, 2010, 

92

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

the ALJ issued a Supplemental Initial Determination.  Although the ALJ’s ruling did not disturb the prior finding that certain 
Carsem Dual and Quad Flat No-Lead Packages infringe some patent claims of Amkor's U.S. Patent No. 6,433,277 (the "277 
Patent"), the ALJ found that these infringed claims are invalid and, as a result, the ALJ did not find a statutory violation of 
the Tariff Act.  On July 20, 2010, the ITC issued a Notice of Commission Final Determination, in which the ITC determined 
that there is no violation of Section 337 of the Tariff Act and terminated the investigation.  We appealed the ITC's ruling of 
invalidity for the claims of the 277 Patent to the U.S. Court of Appeals for the Federal Circuit (the "Federal Circuit"), and 
oral arguments were heard in November 2011.

On August 22, 2012, the Federal Circuit issued a favorable ruling in Amkor's appeal in its patent infringement case against 
Carsem before the ITC.  In its ruling, the Federal Circuit reversed the ITC's determination of invalidity on the 277 Patent, 
and remanded the matter to the ITC for further proceedings consistent with its opinion.  On October 5, 2012, Carsem filed 
a Petition for Rehearing requesting the Federal Circuit to vacate its decision and affirm the ITC's determination of no 
violation of Section 337 of the Tariff Act.  The Federal Circuit denied Carsem's petition on December 7, 2012 and remanded 
the matter to the ITC for further action consistent with its August 22, 2012 ruling.

In September 2012, Carsem, Inc. filed requests for Inter Partes Reexamination of the 277 Patent with the United States 
Patent and Trademark Office (“Patent Office”).  In December 2012, the Patent Office granted the requests for Reexamination.  
On January 10, 2012, the Patent Office issued an Office Action rejecting all of the 277 Patent claims over certain prior art 
references.  Amkor believes that all of the 277 Patent claims are valid and intends to file a response to the Office Action in 
March 2013.

Leases

Future minimum lease payments under operating leases that have initial or remaining noncancelable lease terms in excess 
of one year are:

Lease Payments

(In thousands)

2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

11,671

7,926

5,517

953

860

2,109

29,036

Rent expense amounted to $13.2 million, $15.1 million and $16.3 million for 2012, 2011 and 2010, respectively.

17.  Related Party Transactions

We purchase leadframe inventory from Acqutek Semiconductor & Technology Co., Ltd. (“Acqutek”) under arms-length 
transactions at terms consistent with our non-related party vendors.  Mr. James J. Kim, our Executive Chairman of the Board 
of Directors, owned approximately 16.2% of Acqutek at December 31, 2010.  In July 2011, Mr. James J. Kim sold all of 
his shares in Acqutek and no longer holds any interest in the company.  As a result, Acqutek is no longer considered a related 
party.    During  2011  and  2010,  related  party  inventory  purchases  from Acqutek  were  $2.8  million  and  $10.3  million, 
respectively.

93

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

18.  Business Segments, Customer Concentrations and Geographic Information

We have two reportable segments, packaging and test.  Packaging and test are integral steps in the process of manufacturing 
semiconductor devices, and our customers may engage with us for both packaging and test services, or for packaging or 
test services individually.  We have concluded that our packaging and test services constitute a group of similar services 
within each reportable segment.

Packaging Services

We offer a broad range of package formats and services to our customers.  The differentiating characteristics of package 
formats can include: (1) size and thickness, (2) number of electrical connections, (3) thermal, mechanical and electrical 
characteristics, (4) number of chips incorporated, (5) types of interconnect technologies employed and (6) integration of 
active and passive components.

Test Services

We provide a complete range of semiconductor testing services including wafer testing or probe, various types of final 
testing, strip testing and complete end-of-line test services up to and including final shipping.  Testing services vary depending 
upon the complexity of the device.

The accounting policies for segment reporting are the same as those for our Consolidated Financial Statements as a whole.  
We evaluate our operating segments based on gross profit and gross property, plant and equipment.  We do not specifically 
identify and allocate total assets by operating segment.  Summarized financial information concerning reportable segments 
is shown in the following table.  The “other” column includes corporate adjustments, gross property, plant and equipment 
of our corporate and sales offices and capital additions that do not directly support manufacturing operations, such as research 
and development and infrastructure projects.

Packaging

Test

Other

Total

(In thousands)

Year Ended December 31, 2012

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Depreciation expense . . . . . . . . . . . . . . . . . . . . . .
Gross profit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross property, plant and equipment . . . . . . . . . .
Capital additions. . . . . . . . . . . . . . . . . . . . . . . . . .

2,438,572

$

320,974

$

— $

2,759,546

238,482

334,968

3,372,071

224,838

98,060

88,842

1,076,513

212,798

—

—

150,469

95,541

336,542

423,810

4,599,053

533,177

Year Ended December 31, 2011

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Depreciation expense . . . . . . . . . . . . . . . . . . . . . .
Gross profit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross property, plant and equipment . . . . . . . . . .
Capital additions. . . . . . . . . . . . . . . . . . . . . . . . . .

2,493,283

$

282,942

$

134

$

2,776,359

218,327

425,878

3,217,308

275,781

83,377

65,719

880,611

101,841

307
(1,028)
149,696

75,367

302,011

490,569

4,247,615

452,989

Year Ended December 31, 2010

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Depreciation expense . . . . . . . . . . . . . . . . . . . . . .
Gross profit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross property, plant and equipment . . . . . . . . . .
Capital additions. . . . . . . . . . . . . . . . . . . . . . . . . .

2,650,257

$

288,871

$

355

$

2,939,483

209,146

584,190

3,018,216

316,397

80,907

79,621

800,125

97,122

117
(55)
143,221

90,944

290,170

663,756

3,961,562

504,463

94

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The following table presents net sales by country based on customer location:

Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Singapore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taiwan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thailand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other foreign countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total foreign countries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
United States. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net Sales for the Year Ended December 31,

2012

2011

2010

(In thousands)

349,360

$

340,302

$

452,737

99,047

139,134

576,318

1,616,596

1,142,950

539,467

119,334

111,748

577,895

1,688,746

1,087,613

455,339

643,496

177,505

125,998

646,339

2,048,677

890,806

Total net sales. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

2,759,546

$

2,776,359

$

2,939,483

In 2012, one customer accounted for 21.3% of our consolidated net sales, representing approximately 20.0% of our packaging 
net sales and 31.9% of our test net sales.  In 2011, one customer accounted for 16.5% of our consolidated net sales, representing 
approximately 15.1% of our packaging net sales and 29.6% of our test net sales.  In 2011, another customer accounted for 
11.3% of our consolidated net sales, substantially all of which were packaging net sales.  No customer exceeded 10% of 
consolidated net sales in 2010.

The following table presents property, plant and equipment, net, based on the physical location of the asset:

Property, Plant and Equipment, Net
at December 31,

China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $
Japan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Philippines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taiwan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other foreign countries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total foreign countries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2012

2011

(In thousands)

409,822

$

321,037

17,545

907,844

211,323

233,114

77

18,729

822,509

213,377

230,975

138

1,779,725

1,606,765

40,244

49,449

Total property, plant and equipment, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $

1,819,969

$

1,656,214

95

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

19.  Exit Activities and Reductions in Force

As part of our ongoing efforts to improve our manufacturing operations and manage costs, we regularly evaluate our staffing 
levels and facility requirements compared to business needs.  The following table summarizes our exit activities and reduction 
in force initiatives associated with these efforts.  “Charges” represents the initial charge related to the exit activity.  “Cash 
Payments”  consists  of  the  utilization  of  “Charges.”    “Non-cash Amounts”  consists  of  asset  impairments,  pension  plan 
curtailments and settlements and foreign currency adjustments.

Accrual at December 31, 2009 . . . . . . . . . . . . . . . . . $
Charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash Payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-cash Amounts . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrual at December 31, 2010 . . . . . . . . . . . . . . . . .
Charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash Payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-cash Amounts . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrual at December 31, 2011 . . . . . . . . . . . . . . . . .
Charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash Payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-cash Amounts . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrual at December 31, 2012 . . . . . . . . . . . . . . . . . $

Reductions in Force

Employee
Separation
Costs

Contractual
Obligations

Asset
Impairments

Total

(In thousands)

3,938

$

2,813

$

— $

4,614
(7,882)
—

670
8,326
(7,416)
(1,580)
—

11,211
(8,682)
(922)
1,607

41
(2,854)
—

—
—

—

—

—

—

—

—

282

—
(282)
—
—

—

—

—

—

—

—

$

— $

— $

6,751

4,937
(10,736)
(282)
670
8,326
(7,416)
(1,580)
—

11,211
(8,682)
(922)
1,607

In December 2012, we reduced our workforce by approximately 60 employees at our manufacturing operations in Korea.  
We recorded $1.6 million in charges for one-time termination benefits, all of which was charged to selling, general and 
administrative expenses.  All amounts accrued at December 31, 2012 are classified in current liabilities.

In March 2012, we reduced our workforce by approximately 120 employees at our manufacturing operations in Japan.  We 
recorded $7.2 million in charges for one-time termination benefits including $1.0 million in net curtailment and settlement 
charges, of which $5.5 million, $1.6 million and $0.1 million were charged to cost of sales; selling, general and administrative 
expenses and research and development expenses, respectively.  All amounts were paid as of December 31, 2012.

During  2011,  we  reduced  our  workforce  by  approximately  1,050  employees  at  our  manufacturing  operations  in  the 
Philippines.  We recorded $8.3 million in charges for one-time termination benefits including $1.6 million in curtailment 
and  settlement  charges,  of  which  $7.7  million  and  $0.6  million  were  charged  to  cost  of  sales  and  selling,  general  and 
administrative expenses, respectively.  All amounts were paid as of December 31, 2011.

Early Retirement Program

In October 2012, our manufacturing operations in Korea offered a voluntary early retirement program for eligible employees.  
As a result, we recorded charges for special termination benefits of $2.4 million, of which $1.8 million and $0.6 million 
were charged to cost of sales and selling, general and administrative expenses, respectively.  All amounts were paid as of 
December 31, 2012.

96

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

During 2010, our manufacturing operations in Korea offered a voluntary early retirement program for eligible employees.  
As a result, we recorded charges for special termination benefits of $2.1 million, of which $1.8 million, $0.2 million and 
$0.1 million were charged to cost of sales; selling, general and administrative expenses and research and development 
expenses, respectively.  All amounts accrued at December 31, 2010 were classified as current liabilities.  All amounts were 
paid as of December 31, 2011.

Singapore Manufacturing Operations

During 2009, we communicated to our employees the decision to wind-down and exit our manufacturing operations in 
Singapore.  We completed our exit as of December 31, 2010.  This wind-down affected approximately 600 employees and 
enabled us to improve our cost structure by consolidating factories.  The majority of the machinery and equipment was 
relocated to and utilized in other factories.  At December 31, 2010, the related net book value of $13.1 million was classified 
as held for sale and included in other current assets.  In June 2011, we sold the facility in Singapore for $13.3 million in 
cash, net of goods and services tax, and recorded a gain of less than $0.1 million, with no net tax effect.

The liability for one-time involuntary termination benefits for employees that provided service beyond a minimum retention 
period was recognized over the service period.  During 2010, we recorded charges for termination benefits of $2.6 million, 
of which $1.9 million and $0.7 million were charged to cost of sales and selling, general and administrative expenses, 
respectively.

Contractual obligation costs, asset impairments and other costs were included in costs of goods sold.  In October 2009, we 
entered into a pre-termination agreement with the lessor, and this agreement required us to make specified payments through 
January 2010 in exchange for early termination and relief from our $1.1 million asset retirement obligation related to the 
leased property.  As a result of remeasuring our remaining expected future lease costs, we reduced our liability by $0.5 
million during 2009.  This was reflected as a non-cash accrual amount in 2009 and a cash payment in 2010.  Asset impairment 
expenses  of  $0.3  million  in  2010  related  to  non-transferable  machinery  and  equipment  as  well  as  abandoned  building 
improvements at the leased facility.  All amounts accrued at December 31, 2010, were classified in current liabilities.  All 
amounts were paid as of December 31, 2011.

97

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

Balance at
Beginning of
Period

Additions
(Credited) 
Charged
to
Expense

Write-offs

(In thousands)

(a)
Other

Balance at
End of Period

Deferred tax asset valuation allowance:
Year ended December 31, 2010. . . . . . . . . . . . . $
Year ended December 31, 2011. . . . . . . . . . . . .

Year ended December 31, 2012. . . . . . . . . . . . .

208,925

223,612

214,269

15,009
(509)
(1,626)

(5)
(8,163)
(1,486)

(317) $
(671)
(1,400)

223,612

214,269

209,757

(a)  Column represents adjustments to the deferred tax asset valuation allowance directly through stockholders’ equity for 
changes in accumulated other comprehensive income related to our foreign defined benefit pension plans and cumulative 
translation adjustments of our investment in unconsolidated affiliate.

98

Item 9. 

Changes In and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. 

Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our 
periodic reports to the Securities and Exchange Commission (“SEC”) is recorded, processed, summarized and reported 
within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated 
to our management, including the Chief Executive Officer and the Chief Financial Officer, as appropriate, to allow timely 
decisions regarding required disclosure, based on the definition of “disclosure controls and procedures” in Rule 13a-15(e) 
and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended.  In designing and evaluating the disclosure 
controls and procedures, management recognizes that any disclosure controls and procedures, no matter how well designed 
and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily 
is required to apply its judgment in evaluating the cost-benefit relationship of possible disclosure controls and procedures.

We carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive 
Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and 
procedures as of December 31, 2012, and concluded those disclosure controls and procedures were effective as of that date.

Management’s Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term 
is defined in Exchange Act Rules 13a-15(f) and 15d-15(f).  Internal control over financial reporting is a process designed 
to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements 
for external purposes in accordance with generally accepted accounting principles.

Internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records 
that,  in  reasonable  detail,  accurately  and  fairly  reflect  the  transactions  and  dispositions  of  the  assets  of  the  company; 
(ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements 
in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being 
made only in accordance with authorizations of management and directors of the company and (iii) provide reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets 
that could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  
Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate 
because of changes in conditions, or that the degree of compliance with the policies and procedures may deteriorate.

Management conducted an assessment of the effectiveness of our internal control over financial reporting as of December 31, 
2012,  based  on  the  framework  established  in  Internal  Control —  Integrated  Framework  issued  by  the  Committee  of 
Sponsoring Organizations of the Treadway Commission (“COSO”).  Based on the results of this evaluation, our management 
concluded that our internal control over financial reporting was effective as of December 31, 2012, based on criteria in 
Internal Control — Integrated Framework issued by the COSO.

The  effectiveness  of  our  internal  control  over  financial  reporting  as  of  December 31,  2012,  has  been  audited  by 
PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears 
under Part II, Item 8.

Changes in Internal Control Over Financial Reporting

As previously reported, we continue to implement an enterprise resource planning (“ERP”) system over a multi-year program 
on a company-wide basis.  In addition, we are also implementing a new shop floor system in certain of our factories.  During 

99

the three months ended September 30, 2012, we implemented several significant ERP modules at a subsidiary, including 
modules associated with financial reporting, inventory costing and invoicing.  The implementation of the ERP modules 
represented a change in our internal control over financial reporting during the period in which they were implemented.  
During the three months ended December 31, 2012, there were no changes in our internal control over financial reporting 
that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. 

Other Information

None.

Item 10. 

Directors, Executive Officers and Corporate Governance

PART III

The information required by this Item 10, with the exception of information relating to the Code of Business Conduct as 
disclosed below, is incorporated herein by reference from the material included under the captions “Election of Directors,” 
“Executive Officers,” and “Section 16(a) Beneficial Ownership Reporting Compliance” in our definitive proxy statement 
(to be filed pursuant to Regulation 14A) for our 2013 Annual Meeting of Stockholders.

Additionally, our Code of Business Conduct, Code of Ethics for Directors, Corporate Governance Guidelines, and the 
charters of the Audit Committee, Nominating and Governance Committee and Compensation Committee of our Board of 
Directors are available and maintained on our web site (http://www.amkor.com).  We intend to disclose on our web site 
future amendments or waivers of our Code of Business Conduct required to be disclosed pursuant to applicable rules and 
regulations.

Item 11. 

Executive Compensation

The information required by this Item 11 is incorporated herein by reference from the material included under the captions 
“Executive  Compensation,”  “Compensation  Committee  Interlocks  and  Insider  Participation”  and  “Report  of  the 
Compensation  Committee  of  the  Board  of  Directors”  in  our  definitive  proxy  statement  (to  be  filed  pursuant  to 
Regulation 14A) for our 2013 Annual Meeting of Stockholders.

100

Item 12. 

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this Item 12, with the exception of the equity compensation plan information presented below, 
is incorporated herein by reference to our definitive proxy statement (to be filed pursuant to Regulation 14A) for our 2013 
Annual Meeting of Stockholders.

EQUITY COMPENSATION PLANS

The following table summarizes our equity compensation plans as of December 31, 2012:

(a)
Number of
Securities to be
Issued Upon
Exercise of
Outstanding
Options
(In thousands)

(b)
Weighted-
Average
Exercise Price of
Outstanding
Options

(c)
Number of Securities
Remaining Available
for Future Issuance
Under Equity
Compensation Plans
(Excluding Securities
Reflected in Column(a)
(In thousands)

Equity compensation plans approved by stockholders (1) . . . . .
Equity compensation plans not approved by stockholders (2) . .
Total equity compensation plans . . . . . . . . . . . . . . . . . . . . . .

4,866

$

27

4,893

9.47

17.06

14,415

444

14,859

(1)  As of December 31, 2012, a total of 14.4 million shares were reserved for issuance under the 2007 Plan.  Shares available 
for issuance under our 2007 Plan can be granted pursuant to stock options, restricted stock, restricted stock units, stock 
appreciation rights, performance units and performance shares.

(2)  As  of  December 31,  2012,  a  total  of  0.4  million  shares  were  reserved  for  issuance  under  the  2003  Nonstatutory 
Inducement Grant Stock Plan, and there is a provision in this plan that restores the number of shares of common stock 
reserved for issuance under the plan to 0.3 million as of each January 1.  On January 1, 2013, no additional shares were 
added to the plan pursuant to the annual restoration provision.

Item 13. 

Certain Relationships and Related Transactions, and Director Independence

The information required by this Item 13 is incorporated herein by reference from the material included under the captions 
“Certain  Relationships  and  Related Transactions”  and  “Proposal One —  Election  of  Directors”  in  our  definitive  proxy 
statement (to be filed pursuant to Regulation 14A) for our 2013 Annual Meeting of Stockholders.

Item 14. 

Principal Accountant Fees and Services

The information required by this Item 14 is incorporated herein by reference from the material included under the proposal  
“Ratification of Appointment of Independent Registered Public Accounting Firm” in our definitive proxy statement (to be 
filed pursuant to Regulation 14A) for our 2013 Annual Meeting of Stockholders.

Item 15. 

Exhibits and Financial Statement Schedules

(a) Financial Statements, Financial Statement Schedules and Exhibits

PART IV

The financial statements and schedules filed as part of this Annual Report on Form 10-K are listed in the index under Part II, 
Item 8.

The exhibits required by Item 601 of Regulation S-K which are filed with this report or incorporated by reference herein, 
are set forth in the Exhibit Index.  Management contracts or compensatory plans or arrangements are identified by an asterisk.

101

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant has 
duly caused this Annual Report on Form 10-K to be signed, on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

AMKOR TECHNOLOGY, INC.

By:  /s/  Kenneth T. Joyce

Kenneth T. Joyce
President and Chief Executive Officer

Date: March 8, 2013

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints 
Kenneth  T.  Joyce  and  Joanne  Solomon,  and  each  of  them,  his  attorneys-in-fact,  and  agents,  each  with  the  power  of 
substitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments to this 
Report on Form 10-K, and all documents in connection therewith, with the Securities and Exchange Commission, granting 
unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and 
thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could 
do in person, hereby ratifying and conforming all that said attorneys-in-fact and agents of any of them, or his or their 
substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the 
following persons on behalf of the registrant and in the capacities and on the dates indicated.

Name

Title

Date

/s/  Kenneth T. Joyce

Kenneth T. Joyce

/s/  Joanne Solomon

Joanne Solomon

/s/  James J. Kim

James J. Kim

/s/  Roger A. Carolin

Roger A. Carolin

/s/  Winston J. Churchill

Winston J. Churchill

/s/  John T. Kim

John T. Kim

President and Chief Executive Officer

March 8, 2013

Executive Vice President and Chief Financial Officer

March 8, 2013

Executive Chairman

March 8, 2013

Director

March 8, 2013

Director

March 8, 2013

Director

March 8, 2013

102

Name

/s/  Robert R. Morse

Robert R. Morse

/s/  John F. Osborne

John F. Osborne

/s/  James W. Zug

James W. Zug

Title

Director

Date

March 8, 2013

Director

March 8, 2013

Director

March 8, 2013

103

2.1 Sales Contract of Commodity Premises between Shanghai Waigaoqiao Free Trade Zone Xin Development 

Co., Ltd. and Amkor Assembly & Test (Shanghai) Co., Ltd. dated May 7, 2004.(4)

EXHIBIT INDEX

3.1 Certificate of Incorporation.(1)

3.2 Certificate of Correction to Certificate of Incorporation.(3)

3.3 Restated Bylaws.(10)

4.1 Specimen Common Stock Certificate.(2)

4.2

Indenture, dated as of April 1, 2009, between Amkor Technology, Inc. and U.S. Bank National Association, 
as trustee regarding the 6.00% Convertible Senior Subordinated Notes due 2014.(8)

4.3 Form of Note for the 6.00% Convertible Senior Subordinated Notes due 2014.(8)

4.4 Letter  Agreement,  dated  March  26,  2009,  between  Amkor  Technology,  Inc.,  James  J.  Kim  and  915 

Investments, LP.(8)

4.5

Indenture,  dated  May  4,  2010,  by  and  between  Amkor  Technology,  Inc.  and  U.S.  Bank  National 
Association, as trustee, regarding the 7.375% Senior Notes due 2018.(11)

4.6 Registration Rights Agreement, dated May 4, 2010, by and among Amkor Technology, Inc. and Citigroup 
Global Markets Inc. and Deutsche Bank Securities Inc. regarding the 7.375% Senior Notes due 2018.(11)

4.7

Indenture,  dated  May 20,  2011,  by  and  between  Amkor  Technology,  Inc.  and  U.S.  Bank  National 
Association, as trustee, regarding the 6.625% Senior Notes due 2021.(13)

4.8 Registration Rights Agreement, dated May 20, 2011, by and among Amkor Technology, Inc. and Deutsche 

Bank Securities Inc. and Citigroup Global Markets Inc.(13)

4.9 Letter  Agreement,  dated  May  17,  2011,  between  Amkor  Technology,  Inc.,  James  J.  Kim  and  915 

Investments, LP.(13)

Indenture, dated September 21, 2012, by and between Amkor Technology, Inc. and U.S. Bank National 
Association, as trustee, regarding the 6.375% Senior Notes due 2022.(19)

4.10

Registration  Rights Agreement,  dated  September  21,  2012,  by  and  among Amkor  Technology,  Inc., 
Deutsche Bank Securities Inc. and UBS Securities LLC.(19)
4.11
10.1 Form of Indemnification Agreement for directors and officers.(2)
10.2
10.3 Form of Stock Option Agreement under the 1998 Stock Plan.(5)*

1998 Stock Plan, as amended.(7)*

10.4 Contract of Lease between Corinthian Commercial Corporation and Amkor/Anam Pilipinas Inc., dated 

October 1, 1990.(1)

10.5 Contract of Lease between Salcedo Sunvar Realty Corporation and Automated Microelectronics, Inc., 

dated May 6, 1994.(1)

10.6 Lease Contract between AAPI Realty Corporation and Amkor/Anam Advanced Packaging, Inc., dated 

November 6, 1996.(1)

10.7

10.8

1998 Director Option Plan and form of agreement thereunder.(2)*

2003 Nonstatutory Inducement Grant Stock Plan, as amended.(7)*

10.9 Amended and Restated 2007 Equity Incentive Plan.(16)*

10.10 Form of Stock Option Agreement under the Amended and Restated 2007 Equity Incentive Plan.(18)*

10.11 Form of Restricted Stock Award Agreement under the Amended and Restated 2007 Equity Incentive Plan. 

(18)*

10.12 Executive Incentive Bonus Plan.(16)*

10.13 Credit Facility Agreement, dated March 30, 2007, between Woori Bank and Amkor Technology Korea, 

Inc.(6)

10.14 Additional Agreement, dated March 30, 2007, between Woori Bank and Amkor Technology Korea, Inc.

(6)

10.15 General Terms and Conditions for Bank Credit Transactions, dated March 30, 2007, between Woori Bank 

and Amkor Technology Korea, Inc.(6)

10.16 Kun-Mortgage Agreement, dated March 30, 2007, between Woori Bank and Amkor Technology Korea, 

Inc.(6)

104

10.17 Kun-Guarantee, dated March 30, 2007, delivered by Amkor Technology, Inc. to Woori Bank.(6)

10.18 Voting  Agreement,  by  and  among  Amkor  Technology,  Inc.  and  the  Investors  named  therein,  dated 

November 18, 2005.(5)

10.19

2009 Voting Agreement, dated as of March 26, 2009, between Amkor Technology, Inc., James J. Kim and 
915 Investments, LP.(8)

10.20 Working Capital Facility Agreement, dated January 20, 2009, between China Construction Bank Co., 

Ltd. And Amkor Assembly and Test (Shanghai) Co., Ltd.(9)

10.21 Real Property Mortgage Agreement, dated January 20, 2009, between China Construction Bank Co., 

Ltd. and Amkor Assembly and Test (Shanghai) Co., Ltd.(9)

10.22 Second  Amended  and  Restated  Loan  and  Security  Agreement,  dated  as  of  June  28,  2012,  among 
Amkor Technology, Inc., its subsidiaries from time to time party thereto, the lending institutions from time 
to time party thereto and Bank of America, N.A., as administrative agent.(17)

10.23 Credit Facility Agreement, dated May 24, 2010, by and between Amkor Technology Korea, Inc. and Woori 

Bank.(12)

10.24 Additional Agreement, dated May 24, 2010, between Woori Bank and Amkor Technology Korea, Inc.(12)

10.25 General Terms and Conditions for Bank Credit Transactions, dated May 24, 2010, between Woori Bank 

and Amkor Technology Korea, Inc.(12)

10.26 Amendment to Kun-Mortgage Agreement, dated May 24, 2010, by and between Amkor Technology Korea, 

Inc. and Woori Bank.(12)

10.27 Kun-Guarantee, dated May 24, 2010, by and between Amkor Technology, Inc. and Woori Bank.(12)

Credit Facility Agreement, dated March 20, 2012, by and between Amkor Technology Korea, Inc. and 
Woori Bank.(15)

General Terms and Conditions for Bank Credit Transactions, dated March 20, 2012, between Woori 
Bank and Amkor Technology Korea, Inc.(15)

Loan Agreement, dated June 28, 2012, by and between Amkor Technology Korea, Inc. and The Korea 
Development Bank.(17)

10.28

10.29

10.30

10.31

Factory Mortgage Agreement, dated June 28, 2012, by and between The Korea Development Bank and 
Amkor Technology Korea, Inc.(17)
Loan Agreement, dated November 23, 2012, by and between Amkor Technology Korea, Inc. and The 
Korea Development Bank.(20)

10.32
10.33 Form of Amendment to Factory Mortgage Agreement, by and between The Korea Development Bank and 

Amkor Technology Korea, Inc.(20)

10.34 Severance Agreement  and  Release,  dated  May  23,  2011,  by  and  between  James  Fusaro  and Amkor 

Technology, Inc.(14)*

12.1 Computation of Ratio of Earnings to Fixed Charges

21.1 List of subsidiaries of the Registrant.

23.1 Consent of PricewaterhouseCoopers LLP.

31.1 Certification  of  Kenneth  T.  Joyce,  Chief  Executive  Officer  of  Amkor  Technology,  Inc.,  Pursuant  to 

Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended.

31.2 Certification  of  Joanne  Solomon,  Chief  Financial  Officer  of  Amkor  Technology,  Inc.,  Pursuant  to 

Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended.

32.1 Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, 

as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS** XBRL Instance Document

101.SCH** XBRL Taxonomy Extension Schema Document

101.CAL** XBRL Taxonomy Extension Calculation Linkbase Document

101.LAB** XBRL Taxonomy Extension Label Linkbase Document

101.PRE** XBRL Taxonomy Extension Presentation Linkbase Document

101.DEF** XBRL Taxonomy Extension Definition Linkbase Document

*

Indicates management compensatory plan, contract or arrangement.

105

** This information is furnished and not filed or a part of a registration statement or prospectus for purposes 
of Sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of Section 18 of the 
Securities Exchange Act of 1934, as amended, and otherwise is not subject to liability under these sections.

Incorporated  by  reference  to  the  Company’s  Registration  Statement  on  Form S-1  filed  October 6,  1997  (File 
No. 333-37235).

Incorporated  by  reference  to  the  Company’s Registration  Statement  on  Form S-1  filed  on  October 6,  1997,  as 
amended on March 31, 1998 (File No. 333-37235).

Incorporated by reference to the Company’s Registration Statement on Form S-1 filed on April 8, 1998, as amended 
on August 26, 1998 (File No. 333-49645).

Incorporated by reference to the Company’s Quarterly Report on Form 10-Q filed August 6, 2004.

Incorporated by reference to the Company’s Annual Report on Form 10-K filed on March 16, 2006.

Incorporated by reference to the Company’s Quarterly Report on Form 10-Q filed May 4, 2007.

Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 7, 2008.

Incorporated by reference to the Company’s Current Report on Form 8-K filed on April 1, 2009.

Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed May 6, 2009.

Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 5, 2009.
Incorporated by reference to the Company’s Current Report on Form 8-K filed May 5, 2010.

Incorporated by reference to the Company’s Current Report on Form 8-K filed May 27, 2010.

Incorporated by reference to the Company's Current Report on Form 8-K filed May 20, 2011.

Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 4, 2011.

Incorporated by reference to the Company's Current Report on Form 8-K filed March 23, 2012.

Incorporated by reference to the Company's Proxy Statement on Schedule 14A filed April 5, 2012.

Incorporated by reference to the Company's Current Report on Form 8-K filed on July 2, 2012.

Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 2, 2012.

Incorporated by reference to the Company's Current Report on Form 8-K filed September 21, 2012.

Incorporated by reference to the Company's Current Report on Form 8-K filed November 27, 2012.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)
(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

106

Amkor Technology … 

Providing Solutions for a Connected World

Amkor is one of the world’s leading providers of 

Packaging and test are integral steps in the process 

outsourced semiconductor packaging and test services. 

of manufacturing semiconductor devices. The 

Founded in 1968, we pioneered the outsourcing of 

semiconductor manufacturing process begins with 

semiconductor packaging and test services, and today 

the fabrication of individual transistors, or multiple 

we are a strategic design and manufacturing partner for 

transistors and other electronic elements combined 

many of the world’s leading semiconductor companies 

into an integrated circuit (generally known as a “chip” 

and electronics original equipment manufacturers. 

or “die”), onto semiconductor material such as a silicon 

By capitalizing on strong outsourcing trends and 

wafer. Each chip on the wafer is probe tested. The good 

consistently meeting customer needs, we have enjoyed 

(cid:86)(cid:76)(cid:74)(cid:81)(cid:76)(cid:192)(cid:70)(cid:68)(cid:81)(cid:87)(cid:3)(cid:74)(cid:85)(cid:82)(cid:90)(cid:87)(cid:75)(cid:3)(cid:82)(cid:89)(cid:72)(cid:85)(cid:3)(cid:82)(cid:88)(cid:85)(cid:3)(cid:23)(cid:24)(cid:16)(cid:92)(cid:72)(cid:68)(cid:85)(cid:3)(cid:75)(cid:76)(cid:86)(cid:87)(cid:82)(cid:85)(cid:92)(cid:17)(cid:3)

We are a leader in developing and commercializing 

advanced semiconductor packaging and test solutions. 

Creating successful interconnect solutions for 

advanced semiconductor devices often poses unique 

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into individual die. Each good die is then assembled 

into a package that typically encapsulates the die for 

protection and creates the electrical connections used 

to connect the package to a printed circuit board, 

module or other part of the electronic device.

thermal, electrical and mechanical design criteria, and 

In some packages, chips are attached to a substrate 

we employ a large number of engineers to solve these 

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challenges. We produce hundreds of package types 

chip interconnects and then encased in a protective 

which encompass more than 1,000 unique products, 

material. Or, for a wafer-level package, the electrical 

representing one of the broadest package offerings 

interconnections are created directly on the surface of 

in the semiconductor industry. This wide variety of 

the die (while the wafer is still intact) so that the chip 

package offerings is necessary to meet the diverse 

may be attached directly to other parts of an electronic 

needs of our customers for the optimal combination of 

device without a substrate or leadframe. The packages 

performance, size and cost.

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operational footprint. Our operations comprise more 

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(cid:86)(cid:87)(cid:85)(cid:68)(cid:87)(cid:72)(cid:74)(cid:76)(cid:70)(cid:68)(cid:79)(cid:79)(cid:92)(cid:3)(cid:79)(cid:82)(cid:70)(cid:68)(cid:87)(cid:72)(cid:71)(cid:3)(cid:76)(cid:81)(cid:3)(cid:192)(cid:89)(cid:72)(cid:3)(cid:70)(cid:82)(cid:88)(cid:81)(cid:87)(cid:85)(cid:76)(cid:72)(cid:86)(cid:3)(cid:76)(cid:81)(cid:3)(cid:80)(cid:68)(cid:81)(cid:92)(cid:3)(cid:82)(cid:73)(cid:3)(cid:87)(cid:75)(cid:72)(cid:3)

world’s important electronics manufacturing regions.

are then tested using sophisticated equipment to 

ensure that each packaged chip meets its design and 

(cid:83)(cid:72)(cid:85)(cid:73)(cid:82)(cid:85)(cid:80)(cid:68)(cid:81)(cid:70)(cid:72)(cid:3)(cid:86)(cid:83)(cid:72)(cid:70)(cid:76)(cid:192)(cid:70)(cid:68)(cid:87)(cid:76)(cid:82)(cid:81)(cid:86)(cid:17)(cid:3)

If you look inside a microelectronic product you won’t 

see Amkor’s name on the actual packages, but you will 

see the names of our customers – more than 200 of 

the world’s leading semiconductor suppliers.

Board of Directors

James J. Kim
Executive Chairman

Kenneth T. Joyce
President and Chief Executive Officer

Roger A. Carolin 1, 2, 3
Venture Partner
SCP Partners

Winston J. Churchill 2, 3
Chair: Nominating and
Governance Committee
Chair: Compensation Committee
Managing General Partner,
SCP Partners and Chairman, CIP
Capital Management, Inc.

John T. Kim
Director

Robert R. Morse 1, 2
Chairman and Chief Executive
Officer, PMC Partners

John F. Osborne 1
Director

James W. Zug  1, 3
Chair: Audit Committee
Retired Managing Director 
PricewaterhouseCoopers LLP

1 Member Audit Committee
2 Member Compensation Committee  
3 Member Nominating & Governance

Committee

Corporate Information

Corporate Management

Corporate Headquarters

Kenneth T. Joyce
President and Chief Executive Officer

JooHo Kim
President, Amkor Technology
Korea and Executive Vice President
Corporate Worldwide Manufacturing 
Operations

Michael J. Lamble
Executive Vice President
Global Sales and Marketing

Joanne Solomon
Executive Vice President and
Chief Financial Officer

Gil C. Tily
Executive Vice President,
Chief Administrative Officer,
General Counsel and 
Corporate Secretary

1900 South Price Road
Chandler, AZ 85286
Phone: 480-821-5000

Stock Trading

Amkor Technology, Inc.’s 
common stock is traded on 
the NASDAQ Stock Market 
under the symbol AMKR

Transfer Agent and Registrar

Computershare Trust Co. N.A.
First Class, Registered & Certified
P.O. Box 43078
Providence, RI  02940-3078

Overnight Courier:
250 Royall Street
Canton, MA  02021
Phone: 877-498-8861
Fax: 781-575-3602

International Shareholders:
Phone: 781-575-2879

Independent Auditors

PricewaterhouseCoopers LLP
1850 North Central Avenue, Suite 700
Phoenix, AZ 85004
Phone: 602-364-8000

A copy of the company’s Form 10-K, 
filed with the Securities and Exchange 
Commission is available upon written 
request to:

Investor Relations
Amkor Technology, Inc.
1900 South Price Road
Chandler, AZ 85286

© 2013, Amkor Technology Incorporated. All Rights Reserved. Amkor Technology, the Amkor Technology logo, the phrase Enabling a 
Microelectronic World, ChipArray, FusionQuad, MicroLeadFrame and TMV are registered trademarks of Amkor Technology, Inc. 

Please visit our website: www.amkor.com

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www.amkor.com

www.amkor.com