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Amkor

amkr · NASDAQ Technology
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FY2011 Annual Report · Amkor
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2o11 REPORT

annual

www.amkor.com

ENABLING A MICROELECTRONIC WORLD®

SERVING INDUSTRY FOR OVER 40 YEARS

Corporate Information

Amkor is one of the world’s largest providers of contract semiconductor assembly and test services.  
Founded  in  1968,  Amkor  pioneered  the  concept  of  having  a  highly  focused  third  party  provide 
assembly and test to semiconductor manufacturers.  By capitalizing on strong outsourcing trends 
and  consistently  meeting  customer  needs,  Amkor  has  enjoyed  significant  growth  over  its  40-year 
history.    

Today  we  are  a  strategic  manufacturing  partner  for  many  of  the  world’s  leading  semiconductor 
companies and electronics OEMs, providing our customers with a broad array of package design, 
assembly and test solutions.  Amkor’s operational base encompasses more than 5 million square feet 
of manufacturing facilities, product development centers, and sales and support offices located in 
key electronics manufacturing regions in Asia, Europe and the United States.

Semiconductor manufacturing is generally defined in two stages.  In the first stage, called the “front 
end”,  complex  electronic  circuitry  is  deposited  onto  silicon  wafers  through  a  process  called  wafer 
fabrication.  In the “back end”, also known as packaging (or assembly) and test, the silicon wafer 
is cut into individual chips, and each chip is placed in a protective housing that provides a proper 
electrical connection between the chip and the system board.  For most advanced semiconductor 
devices, these packages are custom designed for specific applications.  The packages are then tested 
to ensure that they meet appropriate performance criteria.

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 – approximately 225 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

Venture Partner

SCP Partners

Winston J. Churchill 3 

Chair: Nominating and Governance 

Committee 

Managing General Partner,

SCP Partners and Chairman, CIP 

Capital Management, Inc.

John T. Kim

Director

John F. Osborne 1, 2

Chair: Compensation Committee

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 Management

Stock Trading

Kenneth T. Joyce

President 

and Chief Executive Officer

JooHo Kim

Korea and

President, Amkor Technology

Executive Vice President 

Worldwide Manufacturing Operations

Michael J. Lamble

Executive Vice President

Worldwide Sales and

Product Management

Joanne Solomon

Executive Vice President and 

Chief Financial Officer

Gil C. Tily

Executive Vice President, Chief 

Administrative Officer,

General Counsel and 

Corporate Secretary

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

Corporate Headquarters

1900 South Price Road

Chandler, AZ 85286

Tel: 480-821-5000

Amkor Technology, the Amkor Technology logo, and the phrase Enabling a Microelectronic World 

are trademarks of Amkor Technology, Inc. 

Please visit our web site: www.amkor.com

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, 2011 

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 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, 2011, 
based upon the closing price of the common stock as reported by the NASDAQ Global Select Market on that date, was approximately 
$675.8 million.

The  number  of  shares  outstanding  of  each  of  the  issuer’s  classes  of  common  equity,  as  of  January 27,  2012,  was  as  follows: 
168,348,463 shares of Common Stock, $0.001 par value.

DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the registrant’s Proxy Statement relating to its 2012 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Item 9B.

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

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

2

15

28

29

30

30

30

33

35

49

51

94

94

95

95

95

96

96

96

Item 15.

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

96

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”.  Amkor®, 
Amkor Technology®, 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 under “Risk Factors” in 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 package 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 material suppliers;

•  Developing 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 tiny transistor elements into complex patterns of electronic circuitry on silicon wafers, 
thereby creating large numbers of individual semiconductor devices or integrated circuits on each wafer (generally referred to 
as “chips” or “die”).  Each device on the wafer is tested and the wafer is cut into pieces called chips.  The chips are attached 
through wirebonding to a substrate or leadframe, or to a substrate in the case of flip chip interconnect and then encased in a 
protective material to create a package.  For a wafer-level package, the electrical interconnections are created directly on the 
surface of the wafer 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.

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 solutions 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; Infineon Technologies 
AG; International Business Machines Corporation (“IBM”); LSI Corporation; Qualcomm Incorporated; ST Microelectronics 
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.

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.

2

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 
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.

•  Higher mobility, connectivity and 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 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 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.

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 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 a high level of utilization for an extended period of time 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 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.

3

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.  Semiconductor companies frequently do not have sufficient time to develop their packaging and test capabilities 
or deploy the equipment and expertise to implement new packaging technology in volume.  For this reason, semiconductor 
companies are leveraging the resources and 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 a “fabless” or “fab-lite” strategy 
in which they reduce or eliminate their investment in wafer fabrication and associated packaging and test assets, thus 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, 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” stacking 
interconnect  solutions.    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 entering 
a new 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 assembly technologies required for 
our customers to deliver 3D chip solutions to market.  We are a leader in wafer thinning, micro-bumping and TSV-based flip 
chip stacking technologies, and we are leveraging our technology development relationships with key customers in diverse 
applications to develop and deploy new 3D packaging technologies 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.

4

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 Package Design, Packaging and Test Services

Creating successful interconnect solutions for advanced semiconductor devices often poses unique thermal, electrical and other 
design challenges, and we employ a large number of package design 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.  These packaging solutions are driven by the needs of our customers for more electrical connections, 
enhanced electrical or thermal performance, smaller package size and lower cost.

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.

Competitive Cost Structure and Disciplined Capital Investment

We believe that a competitive cost structure and disciplined capital investment decisions are key factors for achieving profitability 
and generating free cash flow.  There has been a continuous push throughout the entire semiconductor supply chain for lower 
cost  solutions.    Some  of  our  cost  control  efforts  have  included:  (1) increasing  strip  densities  to  drive  higher  throughput; 
(2) developing smaller gold wire diameter solutions; (3) migrating from gold wire to copper wire for certain wirebond packages 
and (4) increasing labor productivity.

We operate in a cyclical industry.  During an industry downturn, similar to the downturn in late 2008 and 2009, we take actions 
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.

5

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,

2011

2010

2009

(In millions, except percentage of net sales)

Packaging services

Chip scale package . . . . . . . . . . . .
Ball grid array. . . . . . . . . . . . . . . .
Leadframe. . . . . . . . . . . . . . . . . . .
Other packaging . . . . . . . . . . . . . .
Total packaging services . . . . . . . . . .
Test services . . . . . . . . . . . . . . . . . . .
Total net sales . . . . . . . . . . . . . . . . . .

$

$

965

625

692

211

2,493

283

2,776

Packaging Services

34.8%

$

22.5%

24.9%

7.6%

89.8%

10.2%

100.0%

$

954

747

761

188

2,650

289

2,939

32.5%

$

25.4%

25.9%

6.4%

90.2%

9.8%

100.0%

$

695

500

587

152

1,934

245

2,179

31.9%

23.0%

26.9%

7.0%

88.8%

11.2%

100.0%

We offer a broad range of package formats and services to our customers.  Our package services are divided into three families: 
chip scale package, ball grid array and leadframe.  We also provide other packaging services, such as wafer bumping which 
supports our flip chip and wafer-level packages.  The differentiating characteristics of package formats can include: (1) size, 
(2) number of electrical connections, (3) thermal and electrical characteristics, (4) number of chips incorporated, (5) types of 
interconnect technologies employed and (6) integration of active and passive components.

The  following  table  sets  forth  the  various  combinations  of  interconnect  technologies  and  package  carriers,  and  some 
characteristics, for each package family.

Chip Scale Package

Ball Grid Array

Wirebond
Flip Chip

Substrate
Wafer Level

Wirebond
Flip Chip

Substrate

Leadframe

Wirebond

Leadframe

Small Form Factor
Low to High I/O Density
Low to Medium Power 
Consumption
2D and 3D Configurations

Large Form Factor
High I/O Density
Medium to High Power 
Consumption

Variety of Form Factors
Low to Medium I/O Density
Low Cost
Low to High Power
Consumption
2D and 3D Configurations

Interconnect Technology

Package Carrier

Characteristics

Interconnect Technologies

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

Wirebond:  With wirebond packages, 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.

6

Flip Chip:  With flip chip packages, the interconnection between the die and substrate 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.  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 and smaller form factors (or physical package dimensions).

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

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 proprietary 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 at the chip level using proprietary process technologies.  The bumped wafer is subsequently 
singulated into individual chips (“diced”) and the wafer-level package is subsequently attached directly to the system board.

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 pitches (or distance between balls).  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 newly 
developed 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 chipsets 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 footprint, 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.

7

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 enabling 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.

Leadframe Packages

Leadframe packages place the electrical interconnects to the system board around the perimeter of the package.  Wirebonding 
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.

Other Packaging Services

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 which 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 packages 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 solutions 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 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.

8

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

Communications

Applications

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 Disc Drive
Computer Server
Displays
Printers
Other Peripherals

Servers
Routers
Switches

Automotive
Industrial

Amkor Packaging and
Test Services

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

Chip Scale Package
ChipArray Ball Grid Array
Test Services
MicroLeadFrame
Package-on-Package
Micro-electro-mechanical Systems

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

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

Flip Chip Ball Grid Array
Plastic Ball Grid Array
ChipArray Ball Grid Array
Test Services

Small Outline Integrated Circuit
Plastic Ball Grid Array
Thin Quad Flat Pack
MicroLeadFrame
Test Services
Micro-electro-mechanical Systems

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.

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.

10

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;

•  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, 2011, we had approximately 400 employees engaged in research and development activities.  In 2011, 2010 
and 2009, we spent $50.4 million, $47.5 million and $44.5 million, respectively, on research and development.

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 solutions 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;

11

• 

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.  Our 
business is tied to market conditions in the semiconductor industry which is highly cyclical.  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.

CUSTOMERS

As of December 31, 2011, we had approximately 225 customers, including many of the largest semiconductor companies in the 
world.  The table below lists our top 25 customers in 2011 based on net sales:

Altera Corporation

Analog Devices, Inc. 

Atmel Corporation

Avago Technologies Limited

Broadcom Corporation

Cypress Semiconductor Corporation

Entropic Communications, Inc. 

Freescale Semiconductor, Inc.

Global Unichip Corp.

Infineon Technologies AG

International Business Machines Corporation (“IBM”)

LSI Corporation

Maxim Integrated Products, Inc.

Micron Technology, Inc.

Nordic Semiconductor ASA

ON Semiconductor Corporation

Panasonic Corporation

Qualcomm Incorporated

Renesas Electronics Corporation

Samsung Electronics Co., Ltd.

Sony Corporation

ST Microelectronics N.V.

Texas Instruments Incorporated

Toshiba Corporation

Xilinx, Inc.

Our top 25 customers accounted for 83.1% of our net sales in 2011, and our ten largest customers accounted for approximately 
61.0%, 54.2% and 53.4% of our net sales for the years ended December 31, 2011, 2010 and 2009, respectively.  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.  Qualcomm Incorporated accounted for more than 
10% of our consolidated net sales in 2009.

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

12

 
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.

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 and reflow ovens.  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 currently 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.

13

COMPETITION

The  subcontracted  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.

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.  In the future we may also compete with companies (including semiconductor 
foundries) that may enter the market or offer new or emerging technologies 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.  We have promoted and will continue to promote our particular brands through advertising 
and other marketing techniques.

14

EMPLOYEES

As of December 31, 2011, we had  approximately 18,300 full-time employees.  Of the total employee population, approximately 
13,400 were engaged in manufacturing services, 2,900 were engaged in manufacturing support, 400 were engaged in research 
and development, 200 were engaged in marketing and sales and 1,400 were engaged in administration, business management 
and finance.  We believe that our relations with our employees are good, and we have never 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.

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 recent financial crisis and global 
recession resulted in a downturn in the semiconductor industry that adversely affected our business and results of operations in 
late 2008 and in 2009.  Although the world economy recovered somewhat in 2010, economic growth slowed in 2011 in the U.S. 
and internationally.  In view of this slow growth and the recent economic uncertainty in Europe, 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 subcontracted 
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 slow rate of 
economic growth in 2011 and the recent economic uncertainty in Europe could adversely affect consumer demand in the U.S. 
and globally, which may negatively impact our operating results.

15

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;

changes in average selling prices;

changes in the mix of semiconductor packages;

evolving package 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 and

fluctuations in our manufacturing yields.

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 slow rate of economic 
growth in 2011 and the recent economic uncertainty in Europe 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.

16

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 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 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, such as advanced leadframe 
and laminate packages, 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.

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, or IDMs.  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.

17

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 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, 2011, our total debt balance was $1,346.7 million, of which 
$59.4 million was classified as a current liability.  In addition, despite current debt levels, the terms of the indentures governing 
our indebtedness allow us and our subsidiaries to incur more debt, subject to certain limitations.  If new debt is added to our 
consolidated debt level, the related risks that we now 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;

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 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 2011, we had capital additions of $453.0 million and in 2012, we currently 
expect to make capital additions of approximately $300 million for projects already planned for 2012.  The actual amount of 
our 2012 capital additions may vary materially and will depend on several factors including, among others, whether, when and 
to what extent any capital projects not yet planned, including those currently under senior-level review and any others, are 
approved, commenced and completed in 2012, the performance of our business, economic and market conditions, the cash needs 
and investment opportunities for the business, the need for additional capacity and facilities to service customer demand and 
the availability of cash flow from operations or financing.

18

In addition, we have a significant level of debt, with $1,346.7 million outstanding at December 31, 2011, $59.4 million of which 
is current.  The terms of such debt require significant scheduled principal payments in the coming years, including $59.4 million 
due in 2012, $138.9 million due in 2013, $378.4 million due in 2014, $24.0 million due in 2015, $1.0 million due in 2016 and 
$745.0 million due thereafter.  The interest payments required on our debt are also substantial.  For example, in 2011, we paid 
$81.3 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, current cash and cash equivalents, borrowings 
under available debt facilities, or proceeds from any additional debt or equity financing.  As of December 31, 2011, we had cash 
and cash equivalents of $434.6 million and availability of $99.7 million under our $100.0 million senior secured revolving credit 
facility which matures in April 2015.

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 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, the performance of our 
business, our capital expenditure levels and our ability to repay debt out of our operating cash flows or refinance the debt with 
the proceeds of debt or equity offerings at or prior to maturity.  Moreover, 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.  If our performance or access to the 
capital markets differs materially from our expectations, our liquidity may be adversely impacted.

In addition, if we fail to generate the necessary net income or operating cash flows 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 the 
other factors discussed in this “Risk Factors” section, our liquidity would be adversely affected.

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 currently have a $100.0 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.  

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.

19

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 $106.5 million 
as of December 31, 2011.  Existing tax laws in Korea limit our ability to currently 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 would be required to 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 currently 
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.

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 

20

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; 

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  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 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

21

• 

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 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 evaluate our management team and engage in long-term succession planning in order to ensure 
orderly replacement of key personnel.  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.  
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.  These changes can strain our managerial, financial, operational 
and other resources.  We may continue to face these challenges in the future.  For example, we currently have a 30% investment 
in J-Devices, with options to acquire additional equity interests up to 80%.  If we were to acquire these interests, we would need 
to  integrate  the  J-Devices  operation  with  our  existing  systems.    The  J-Devices  integration  or  other  future  acquisitions, 
consolidations and partnering arrangements could result in operating inefficiencies, increased costs and a burden on our resources 
as we integrate 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, in acceptable quality or at competitive prices.

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 packaging 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 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 

22

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 225 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 61.0%, 54.2% and 53.4% of our net sales in the years ended 
December 31, 2011, 2010 and 2009, respectively.  Two customers each accounted for more than 10% of our consolidated net 
sales in 2011, no customer exceeded 10% of consolidated net sales in 2010 and one customer exceeded 10% of our consolidated 
net sales in 2009.

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 currently 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 Corporation.  We have also invested in an unconsolidated affiliate, J-Devices 
Corporation, 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 2011, one customer accounted for 17% of our consolidated 
net sales, representing approximately 15% of our packaging net sales and 30% of our test net sales.  In 2011, another customer 
accounted for 11% of our consolidated net sales, substantially all of which were packaging net sales.  If we were to lose either 
or both of our two largest customers, or if they significantly reduced their level of business with us, it 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.  The amount of 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.

23

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.

We Could Suffer Adverse Tax and Other Financial Consequences if Taxing Authorities Do Not Agree with Our Interpretation 
of Applicable Tax Laws.

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.  
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.

24

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 package 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 package design or obtain access to advanced package 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 package 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.

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 packages and services include patents, copyrights, trade 
secrets and trademarks.  We have filed for and have obtained a number of patents in the U.S. and abroad, the duration of which 
varies depending on the jurisdiction in which the patent was filed.  While 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.  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  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:

• 

• 

• 

• 

• 

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 arbitration proceeding filed 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”, both of 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 litigation matters 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.

25

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.

Testing 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 testing equipment is also subject to malfunction.  
In addition, the testing 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.

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

The  subcontracted  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.  If one or 
more of these competitors were to significantly exceed our expenditures on capacity expansion, our market share and business 
could be negatively impacted.  We also face competition from the internal capabilities and capacity of many of our current and 
potential IDM customers.  In addition, in the future we may compete with companies (including semiconductor foundries) that 
may enter the market or offer new or emerging technologies that compete with our packages and services.  For example, one of 
the major semiconductor foundries, which is substantially larger and has greater financial resources than we do, has indicated 
that it is considering an expansion of 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 

26

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, Including the Recent Earthquake 
and Tsunami in Japan.

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 has affected the facilities and operations 
of customers and suppliers in our industry.  As a result, our business, financial condition, results of operations and cash flows 
could be adversely affected by the events 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
Substantially Control The Outcome of All Matters Requiring Stockholder Approval.

As of January 27, 2012, Mr. James J. Kim, our Executive Chairman of the Board of Directors, members of Mr. Kim’s immediate 
family  and  affiliates  owned  approximately  87,899,000 shares,  or  approximately  52%,  of  our  outstanding  common  stock.  
Approximately 13,351,000 of these shares (the “2013 Convert Shares”) were acquired upon the conversion in January 2011 of 
all  $100.0 million  of  our  6.25% Convertible  Subordinated  Notes  due  2013.    The  Kim  family  also  has  options  to  acquire 

27

approximately 985,000 shares and owns $150.0 million of our 6.0% Convertible Senior Subordinated Notes due 2014 (the “2014 
Notes”) that are convertible into approximately 49,595,000 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 138,479,000 shares, or approximately 63%, of our outstanding common stock.

The 2013 Convert Shares and the 2014 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 matters (other than 
interested party transactions) submitted for approval by our stockholders by voting their shares, 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.

Item 1B. 

Unresolved Staff Comments

None.

28

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
Chandler, AZ(5). . . . . . . . . . . . . . . . . . .

(1)  Owned facility and land.

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

5,000

Test process development; package and process development

(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, 2011.  All land is leased.

(4)  Leased facility.

(5)  Of the 5,000 square feet in the U.S., 2,000 square feet is owned facility and land and 3,000 square feet is leased.

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 the U.S. (Chandler, Arizona; Irvine, 
San Diego and Santa Clara, California; Boston, Massachusetts; Greensboro, North Carolina and Dallas, Texas), China, France, 
Japan, Korea, the Philippines, Singapore and Taiwan.

29

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

2011

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

2010

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

$

$

8.49

7.00

6.59

5.17

7.55

8.81

6.80

7.78

There were approximately 165 holders of record of our common stock as of January 27, 2012.

DIVIDEND POLICY

$

$

6.30

5.64

3.81

4.06

5.47

5.45

5.05

6.06

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 “Management’s Discussion 
and Analysis” of this Annual Report on Form 10-K.

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 “Security Ownership 
of Certain Beneficial Owners and Management and Related Stockholder Matters” of this Annual Report on Form 10-K.

30

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, 2011.  See Note 14 to our Consolidated Financial Statements in Part I, Item 1 of this Annual Report on Form 10-
K for further discussion.

Period

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)

Total Number of
Shares Purchased
(a)

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

6,950,956

5,105,323

5,638,233

17,694,512

$4.64

4.52

4.43

$4.54

6,947,031

5,087,981

5,636,175

17,671,187

$69,038,913

46,039,163

21,070,958

(a)  Includes 23,325 shares of common stock surrendered to us to satisfy tax withholding obligations associated with the 

vesting of restricted shares issued to employees.  

(b)  In August 2011, our Board of Directors authorized the repurchase of up to $150.0 million of our common stock, exclusive 
of any fees, commissions or other expenses.  During 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, 2011, approximately $21.1 million was available to repurchase common stock pursuant to the stock 
repurchase program.  In February 2012, our Board of Directors authorized the repurchase of an additional $150.0 
million of our common stock.

31

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, 
whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.

32

Item 6. 

Selected Consolidated Financial Data

The following selected consolidated financial data as of December 31, 2011 and 2010 and for the years ended December 31, 
2011, 2010 and 2009 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, 2009, 2008 and 2007 and for the years ended 
December 31, 2008 and 2007, 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,

2011

2010

2009

2008

2007

(In thousands, except per share data)

Statement of Operations Data:

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

$

2,776,359

$

2,939,483

$

2,179,109

$

2,658,602

$

2,739,445

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

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

2,285,790

490,569

2,275,727

663,756

1,698,713

480,396

2,096,864

561,738

2,057,572

681,873

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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) expense, 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 . . . . . .

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)

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)

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)

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

254,365

41,650

—

(4,833)

291,182

390,691

133,896

6,250

(9,797)

8,961

15,876

—

668

155,854

234,837

12,597

222,240

(2,376)

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

$

91,808

$

231,971

$

155,980

$

(456,695)

$

219,864

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

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

$

$

0.48

0.39

Shares used in computing per common share amounts:

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

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

190,829

273,686

Other Financial Data:

1.26

0.91

183,312

282,602

0.85

0.67

183,067

263,379

(2.50)

(2.50)

182,734

182,734

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

$

335,644

$

323,608

$

305,510

$

309,920

$

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

466,694

445,669

173,496

386,239

1.22

1.11

180,597

208,767

283,267

236,240

33

2011

2010

2009

2008

2007

Year Ended December 31,

(In thousands)

Balance Sheet Data:

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

$

434,631

$

404,998

$

395,406

$

424,316

$

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. . . . . . . . . . . . . . . . . . . . . . . . .

_______________________________________

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

(890,270)

630,013

327,088

2,432,909

1,345,241

1,434,185

1,500,246

306,174

2,383,993

1,438,751

1,493,360

1,496,976

(1,122,241)

(1,278,221)

383,209

237,139

410,070

310,341

3,192,606

1,611,570

1,764,059

1,482,186

(821,526)

654,619

(a)  During 2008, we recorded a charge of $61.4 million for unpaid royalties relating to the resolution of a 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 not significant.  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.  During 
2007, we recorded a gain of $3.1 million in connection with the sale of real property in Korea used for administrative 
purposes and a gain of $1.7 million related to an earn-out provision on the sale of our Wichita, Kansas specialty test operation.

(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 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.  In 2007, we recorded 
a loss of $15.9 million related to the refinancing of a second lien term loan.  

(f)  During 2009, we made a 30% equity investment in J-Devices Corporation, which was accounted for using the equity method.  
We recognized equity in earnings of $7.1 million, $6.4 million and $2.4 million during 2011, 2010 and 2009, respectively.

(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 is 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 January 2011, the entire $100.0 million aggregate principal amount of the December 2013 Notes was converted into 13.4 
million shares of common stock.  Also during 2011 we repurchased 28.6 million shares under the Stock Repurchase Program 
authorized by our Board of Directors in August 2011.  

34

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, (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 the repurchase of common stock, (7) our repurchase or repayment of outstanding 
debt  or  the  conversion  of  debt  in  the  future,  (8) payment  of  dividends,  (9) compliance  with  our  covenants,  (10) expected 
contributions to foreign pension plans, (11) liability for unrecognized tax benefits, (12) the effect of foreign currency exchange 
rate exposure on our financial results, (13) the volatility of the trading price of our common stock, (14) changes to our internal 
controls related to implementation of a new enterprise resource planning (“ERP”) system and (15) 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 “Risk Factors” 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, 2011 and our 
liquidity and capital resources.  You should read the following discussion in conjunction with Item 8, “Financial Statements and 
Supplementary Data” 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 tiny transistor elements into complex patterns of electronic circuitry on silicon wafers, thereby creating 
large numbers of individual semiconductor devices or integrated circuits on each wafer (generally referred to as “chips” or 
“die”).  Each device on the wafer is tested and the wafer is cut into pieces called chips.  The chips are attached through wirebonding 
to a substrate or leadframe, or to a substrate in the case of flip chip interconnect, and then encased in a protective material to 
create a package.  For a wafer-level package, the electrical interconnections are created directly on the surface of the wafer 
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.

Our packages are designed based on 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 solutions 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; Infineon Technologies 
AG; International Business Machines Corporation; LSI Corporation; Qualcomm Incorporated; ST Microelectronics 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 net sales decreased $163.1 million or 5.5% to $2,776.4 million in 2011 from $2,939.5 million in 2010.  The decrease was 
driven by a decline of $157.0 million or 5.9% in packaging net sales as a result of weakness in the consumer, networking and 
computing end markets, partially offset by strength in the communications end market for smartphones and tablets.  As the price 
of gold has continued to rise over the last few years, there has been a migration from gold wirebond to flip chip and copper 
wirebond packaging.  The corresponding increase in flip chip demand was a driver of our net sales in 2011 while our net sales 
of copper wirebond packaging services during the year were not significant.  Test net sales also decreased by $5.9 million or 
2.1% due to weakness in the computing and consumer end markets, partially offset by strength in the communications end 
market.

35

Gross margin for 2011 decreased to 17.7% from 22.6% in 2010.  The decrease in gross margin was primarily due to weakness 
in demand for our wirebond packaging solutions and the corresponding lower level of utilization of our wirebond manufacturing 
assets.  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 and charges recognized in connection with workforce 
reduction programs at our Philippine manufacturing operations.

In 2011, our capital additions totaled $453.0 million or 16.3% of net sales compared to $504.5 million or 17.2% of net sales in 
2010.  In 2011, 61% of our capital additions were made in packaging, 23% for test and 16% for research and development and 
infrastructure projects.

As part of our continued focus on generating cash flow and driving greater factory and administrative efficiencies, we reduced 
employee and contractor headcount at our manufacturing operations in the Philippines in 2011.  For the year ended December 
31, 2011, these reductions resulted in charges for one-time termination benefits of $8.3 million including $1.6 million of related 
pension plan curtailment and settlement charges.  

We generated $50.1 million of free cash flow in the year ended December 31, 2011, a decrease of $46.8 million from the prior 
year.  Cash provided by operating activities was $516.8 million for the year ended December 31, 2011, compared with $542.6 
million for the year ended December 31, 2010.  The decrease was primarily attributable to lower net sales and gross profit in 
2011, which was partially offset by increased collections on 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.

We believe our financial position and liquidity are sufficient to fund our operating activities for at least the next twelve months.  
At December 31, 2011, our cash and cash equivalents totaled approximately $434.6 million, with an aggregate of $59.4 million 
of debt maturities due through the end of 2012.  In May 2011, we issued $400.0 million of our 6.625% Senior Notes due 2021.  
We used the proceeds of that note issuance to refinance the $42.6 million principal balance outstanding of our 2.5% Convertible 
Senior Subordinated Notes due May 2011, redeem in full the $264.3 million outstanding principal amount of our 9.25% Senior 
Notes due 2016 and for general corporate purposes.  In January 2011, the entire $100.0 million aggregate principal amount of 
our 6.25% Convertible Subordinated Notes due December 2013 was converted into an aggregate of 13,351,131 shares of our 
common stock.

In August 2011, our Board of Directors authorized the repurchase of up to $150.0 million of our common stock, exclusive of 
any fees, commissions or other expenses.  Through December 31, 2011, we had repurchased 28.6 million shares for $128.9 
million under this program.  Additionally, in February 2012, our Board of Directors authorized the repurchase of an additional 
$150.0 million of our common stock, exclusive of any fees, commissions or other expenses.  Our stock repurchase program has 
been and is expected to be funded with available cash and may be suspended or discontinued at any time.

36

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,

2011

2010

2009

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross margin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depreciation and amortization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating income. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income attributable to Amkor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.0%

17.7%

12.1%

7.0%

3.6%

3.3%

100.0%

100.0%

22.6%

11.0%

12.7%

8.5%

7.9%

22.0%

14.0%

10.3%

5.8%

7.2%

Net Sales

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

Net sales. . . . . . . . . . . . . . . . .
Packaging net sales . . . . . . . .
Test net sales . . . . . . . . . . . . .

$ 2,776,359

$ 2,939,483

$ 2,179,109

2,493,283

2,650,257

1,933,600

282,942

288,871

245,237

$ (163,124)
(156,974)
(5,929)

(5.5)%

$

760,374

(5.9)%

(2.1)%

716,657

43,634

34.9%

37.1%

17.8%

Net Sales.  Net sales in 2011 decreased compared to 2010 primarily as a result of lower net sales of our packaging solutions.  
The decrease in packaging net sales was driven by weakness in the consumer, networking and computing end markets.  These 
decreases were partially offset by strength in the communications end market for smartphones and tablets along with other 
advanced packaging solutions.  Test net sales also decreased slightly due to weakness in the computing and consumer end markets 
partially offset by strength in the communications end market.  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.

Net sales in 2010 increased compared to 2009 primarily driven by the recovery of the semiconductor industry and improved 
consumer spending across all of our end markets, resulting in an increase in demand for substantially all product lines in our 
packaging and test services.  Chip scale packaging solutions increased due to demand for flip chip and 3-D stacking technologies 
for use in wireless data applications and smartphones.  Ball grid array packaging solutions increased as demand for gaming, 
HDTVs, other consumer electronics and networking applications increased.

Packaging Net Sales.  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 wireless 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.

Packaging net sales in 2010 increased compared to 2009.  Packaging unit volume increased 2.1 billion units in 2010 to 9.8 billion 
units, compared to 7.7 billion units in 2009, primarily attributable to increased demand for our leadframe and chip scale packaging 
services.  The increase in demand was due to the recovery of the semiconductor industry and improved consumer spending 
following the global economic downturn in 2009.  Growth in ball grid array and chip scale packaging solutions with higher 
average sales prices per unit also contributed to the overall growth in net sales from 2009.

Test Net Sales.  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 wireless communications products.  Test net sales in 
2010 increased compared to 2009 as overall demand continued to increase due to the recovery of the semiconductor industry 
and improved consumer spending following the global economic downturn in 2009.

37

Cost of Sales

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

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

$ 2,285,790

$ 2,275,727

$ 1,698,713

$

10,063

0.4%

$

577,014

34.0%

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 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.  Material costs as a percentage of net sales increased to 42.6% in 2010 from 39.7% in 2009 primarily 
due to a higher mix of ball grid array packages with higher material content as a percentage of net sales and the increased cost 
of gold that is used in most of our wirebond packages.

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.

As a percentage of net sales, labor costs decreased to 12.7% in 2010 from 13.5% in 2009.  The decrease in labor costs as a 
percentage of net sales was due primarily to higher levels of utilization and efficiencies driven by increased customer demand 
and the corresponding increase in net sales.  Labor costs increased in 2010 partially due to an increase in our global labor 
headcount to approximately 19,900 employees at December 31, 2010 compared to 18,200 employees at December 31, 2009, 
the restoration in 2010 of the compensation cost reductions from 2009 and the expiration of other temporary cost reduction 
initiatives, such as foreign subsidy programs, which were available and utilized in 2009.  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 2010 compared to 2009.  Labor costs in 2010 included a charge of $3.7 million related to 
workforce reduction programs associated with the wind-down and exit of manufacturing operations in Singapore and special 
termination benefits related to a voluntary early retirement program in Korea compared to a $10.1 million charge in 2009 for 
workforce reduction programs.

Other manufacturing costs as a percentage of net sales increased to 23.6% in 2011 from 22.1% in 2010.  Other manufacturing 
costs 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 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.  

As a percentage of net sales, other manufacturing costs decreased to 22.1% in 2010 from 24.7% in 2009 due to higher levels of 
utilization and efficiencies driven by increased customer demand and the corresponding increase in net sales.  The increase in 
other manufacturing costs in absolute dollars was primarily attributable to higher levels of production in our factories, resulting 
in increased costs for repairs and maintenance, supplies, facilities, and utilities, and to increased depreciation as a result of the 
higher level of capital spending during 2010.  The increase was partially offset by a decrease in charges related to the wind-
down and exit of manufacturing operations in Singapore from $6.8 million in 2009 to $0.3 million in 2010, as well as a decrease 
in asset impairment charges from $6.0 million in 2009 to $1.4 million in 2010.

38

Gross Profit

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross margin. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 490,569

$ 663,756

$ 480,396

$ (173,187)

$

183,360

17.7%

22.6%

22.0%

(4.9)%

0.6%

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 has created underutilized wirebond capacity faster than we have been able to 
redeploy these assets, which has been 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.

Gross profit and gross margin in 2010 increased compared to 2009.  The increase was primarily due to higher levels of utilization 
and efficiencies driven by increased customer demand for all of our packaging and test services and the corresponding increase 
in net sales.  Several factors partially offset the increase from customer demand.  Our material costs were impacted by a higher 
mix of ball grid array packaging services with higher material content and the increased cost of gold that is used in most of our 
wirebond packages.  We experienced increased labor costs to meet our customer demands, including additional headcount and 
restoration of compensation costs and other temporary cost reduction initiatives implemented in 2009.  Other manufacturing 
costs  increased  in  support  of  higher  customer  demand,  including  increased  depreciation  expense  resulting  from  increased 
investment and capital spending activities.  In addition, gross profit and gross margin were negatively impacted by foreign 
currency exchange rate movements in 2010.

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

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

$ 425,878

$ 584,190

$ 429,295

$ (158,312)

$ 154,895

17.1%

22.0%

22.2%

(4.9)%

(0.2)%

Packaging Gross Profit.  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 has created 
underutilized wirebond capacity faster than we have been able to redeploy these assets, which has been 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.

Gross profit for packaging in 2010 increased compared to 2009.  Gross margin for packaging in 2010 remained consistent with 
2009.  The increase in gross profit was primarily attributable to increased customer demand resulting from the recovery of the 
semiconductor industry.

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

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

$

65,719

$

79,621

$

57,652

$ (13,902)

$

21,969

23.2%

27.6%

23.5%

(4.4)%

4.1%

Test Gross Profit.  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.  Gross profit and gross margin for test sales 

39

in 2010 increased compared to 2009.  The increase is attributable to increased customer demand and higher utilization of our 
test assets.  Costs of sales for test are primarily fixed, with low material requirements.  As utilization rates increase, we benefit 
from a higher degree of operating leverage.

Selling, General and Administrative Expenses

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

Selling, general and

administrative. . . . . . . . . .

$

246,513

$

242,424

$

210,626

$

4,089

1.7%

$

31,798

15.1%

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.  Selling, general and administrative expenses in 2010 increased 
compared to 2009.  The increase was primarily driven by the reinstatement of employee compensation and benefit costs that 
had been reduced in 2009 as part of our cost reduction initiatives during the global economic downturn, as well as an increase 
in depreciation expense associated with the implementation of our global enterprise resource planning information system.

Research and Development

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

Research and development . .

$

50,386

$

47,534

$

44,453

$

2,852

6.0%

$

3,081

6.9%

Research  and  development  activities  are  focused  on  developing  new  package  interconnect  solutions  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 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.  Research and development expenses in 2010 increased compared to 2009.  As a percentage of net sales, research and 
development expenses decreased to 1.6% in 2010 compared to 2.0% in 2009 primarily due to higher net sales partially offset 
by  increased  activity  and  reinstatement  of  employee  compensation  and  benefit  costs.    During  2009,  we  also  recorded  an 
impairment charge of $2.6 million related to certain research and development equipment, which did not recur in 2010.

Other Expense, Net

Interest expense, net . . . . . . .
Foreign currency loss . . . . . .
Loss (gain) on debt

retirement, net . . . . . . . . .

Equity in earnings of

unconsolidated affiliate . .
Other income, net . . . . . . . . .
Total other expense, net . .

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

$

83,857

$

97,895

$

113,029

$

2,178

13,756

3,339

(14,038)
(11,578)

(14.3)%

$

(84.2)%

(15,134)
10,417

(13.4)%

312.0 %

Change

15,531

18,042

(15,088)

(2,511)

(13.9)%

33,130

219.6 %

(7,085)

(1,030)

(6,435)

(619)

$

93,451

$

122,639

$

(2,373)
(113)
98,794

$

(650)
(411)
(29,188)

10.1 %

66.4 %

(23.8)%

$

(4,062)
(506)
23,845

171.2 %

447.8 %

24.1 %

Other expense, net in 2011 decreased compared to 2010.  The decrease was driven by lower net interest expense, foreign currency 
losses and losses on debt retirement.  The reduction in net interest expense of $14.0 million was primarily due to debt refinanced 

40

at lower interest rates and the conversion of our 6.25% Convertible Notes due 2013 into common stock.  During 2011, we 
recorded a $2.2 million foreign currency loss from the remeasurement of certain subsidiaries' balance sheet items compared to 
a $13.8 million foreign currency loss in 2010.  In 2011, we recorded $15.5 million of debt retirement costs related to the refinancing 
of the $42.6 million principal balance outstanding of our 2.5% Convertible Senior Subordinated Notes due May 2011 and the 
redemption in full of the $264.3 million outstanding principal amount 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.

Other expense, net in 2010 increased compared to 2009.  This increase was driven by an increase in debt retirement costs.  During 
2010, we recorded $18.0 million of debt retirement costs related to the debt transactions described above.  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 due 2011, our 2.5% Convertible Senior Subordinated Notes due 2011 and our 7.75% Senior Notes due in 
2013.  Also during 2010, we recorded a $13.8 million foreign currency loss from the remeasurement of certain subsidiaries’ 
balance sheet items compared to a $3.3 million foreign currency loss in 2009.  Partially offsetting the increase is a reduction in 
net interest expense of $15.1 million during 2010 compared with the prior year resulting from various financing activities.  In 
addition, during 2010 we recorded $6.4 million in earnings from an unconsolidated affiliate, J-Devices Corporation, compared 
to $2.4 million during 2009.  Our investment in the unconsolidated affiliate was made in October 2009.

Income Tax Expense (Benefit)

2011

2010

2009

2011 over 2010

2010 over 2009

(In thousands, except percentages)

Change

Income tax expense (benefit)

$

7,124

$

19,012

$

(29,760)

$

(11,888)

(62.5)%

$

48,772

163.9%

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 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 2011 is attributable to tax incurred on profits earned in certain of our taxable foreign 
jurisdictions,  foreign  withholding  taxes  and  minimum  taxes  partially  offset by  an  income  tax  benefit  related  to  changes  in 
estimates of our uncertain tax positions and the income tax benefit of expenses expected to be deductible for tax purposes in 
future years at increased tax rates as our tax holidays expire.  Income tax expense in 2010 is attributable to profits 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.  The income tax benefit for 2009 included a $25.6 million income tax benefit for the 
release of a valuation allowance on the net deferred tax assets of our Korean subsidiary, $9.4 million of income tax credits, and 
an income tax benefit of $3.0 million related to changes in estimates of our uncertain tax positions.  These benefits were partially 
offset by $6.2 million of income tax expense attributable to income taxes in certain profitable foreign jurisdictions, foreign 
withholding taxes and minimum taxes.

During 2011, our subsidiaries in China, Korea, the Philippines and Taiwan operated under tax holidays which will expire in 
whole or in part at various dates through 2017.  We expect our effective tax rate to increase as the tax holidays expire and income 
earned in these jurisdictions is subject to higher statutory income tax rates.  See Note 4 to our Consolidated Financial Statements 
included in Item 8 of this Annual Report on Form 10-K for a further discussion of income tax holidays.

At December 31, 2011, we had U.S. net operating loss carryforwards totaling $396.9 million which expire at various times 
through 2031.  Additionally, at December 31, 2011, we had $44.1 million of non-U.S. net operating loss carryforwards, the vast 
majority of which will expire at various times through 2020.  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.

41

Quarterly Results

The following table sets forth our unaudited consolidated financial data for the last eight quarters ended December 31, 2011.  
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 Item 8 “Financial Statements and Supplementary Data” 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.

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.

Dec. 31,
2011

Sept. 30,
2011

June 30,
2011

Mar. 31,
2011

Dec. 31,
2010

Sept. 30,
2010

June 30,
2010

Mar. 31,
2010

(In thousands, except per share data)

For the Quarter Ended

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

$ 683,769

$ 740,007

$ 687,633

$ 664,950

$ 750,609

$ 793,971

$ 749,165

$ 645,738

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

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

571,942

111,827

617,768

122,239

557,816

129,817

538,264

126,686

591,266

159,343

605,713

188,258

569,966

179,199

508,782

136,956

Operating expenses:

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

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

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

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

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

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

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

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

Net (income) loss attributable to

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

Net income attributable to Amkor per

common share:

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

62,037

11,097

73,134

86,209

25,390

60,819

10,058

50,761

57,735

12,669

70,404

66,356

12,095

78,451

117,854

100,748

29,163

88,691

10,321

78,370

43,005

57,743

(1,200)

58,943

56,296

11,673

67,969

68,987

25,081

43,906

(167)

44,073

(711)

44

43

(663)

(157)

(350)

107

224

$

24,850

$

27,367

$

14,488

$

25,103

$

50,604

$

78,020

$

59,050

$

44,297

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

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

$

0.14

0.11

$

0.14

0.11

$

0.07

0.07

$

0.13

0.10

$

0.28

0.20

$

0.42

0.30

$

0.32

0.23

0.24

0.18

Liquidity and Capital Resources

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 revolving credit facility, 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 flow or refinance at or prior to maturity with the 
proceeds of debt or equity offerings.  There can be no assurance that we will generate the necessary net income or operating 
cash flows 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 “Risk Factors” of this Annual Report 
on Form 10-K.

42

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our primary source of cash and the source of funds for our operations are cash flows from our operations, current cash and cash 
equivalents,  borrowings  under  available  debt  facilities,  or  proceeds  from  any  additional  debt  or  equity  financings.   As  of 
December 31, 2011, we had cash and cash equivalents of $434.6 million and availability of $99.7 million under our $100.0 
million first lien senior secured revolving credit facility.  Cash provided by operating activities was $516.8 million for the year 
ended December 31, 2011 compared to $542.6 million for the year ended December 31, 2010.  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, the 
repurchase of common stock and for other corporate purposes.

We have a significant amount of indebtedness.  Total debt at December 31, 2011 was $1,346.7 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.

During 2009, Amkor and Toshiba Corporation (“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 now owned 
60% by the former shareholders of NMD, 30.0% by Amkor and 10% by Toshiba and has changed its name to J-Devices.  Our 
investment includes our 30.0% equity interest and options to acquire additional equity interests.  The options are exercisable at 
our discretion and permit us to increase our percentage ownership of J-Devices up to 60% in 2012, 66% in 2014 and 80% in 
2015.  In 2014 and beyond, Toshiba has the option, at its discretion, to sell the shares it owns to us if we have exercised any of 
our options.  After we own 80% or more shares, the former 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 financial position of J-Devices at the time of exercise.

We sponsor an accrued severance plan for our Korean subsidiary which, under existing tax laws in Korea, limits our ability to 
currently 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 would be required to fund a significant portion of the existing liability, 
which would provide a current tax deduction upon funding.  Our Korean severance liability was $106.5 million as of December 31, 
2011.

Included in our cash balance as of December 31, 2011, is $244.3 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 $17.3 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.

In August 2011, our Board of Directors authorized the repurchase of up to $150.0 million of our common stock, exclusive of 
any fees, commissions or other expenses.  Through December 31, 2011, we had repurchased 28.6 million shares for $128.9 
million,  net  of  $0.6  million  of  commissions,  leaving  a  balance  of  $21.1  million  available  at  December 31,  2011  for  stock 
repurchase under this program.  In February 2012, our Board of Directors authorized the repurchase of an additional $150.0 
million of our common stock, exclusive of any fees, commissions or other expenses.  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 has been and is expected to be funded with available cash and may be suspended or discontinued at any time.  

Debt Instruments and Related Covenants

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

43

In January 2011, all $100.0 million of our 6.25% Convertible Notes due 2013 were converted by the holders into an aggregate 
of 13,351,131 shares of our common stock.

In March 2011, we amended the principal repayment schedule of our term loan in Taiwan.  As a result, principal payments of 
NT$150.0 million (approximately $4.7 million at inception) semiannually will begin in April 2012, and the remaining NT$600.0 
million (approximately $18.9 million at inception) will be due upon maturity.  In January 2012, the outstanding principal was 
converted from Taiwan dollars to U.S. dollars (approximately $50.0 million) to mitigate our foreign currency exposure.  

In May 2011, we issued $400.0 million of 6.625% Senior Notes due 2021.  We used the net proceeds from the notes to fund the 
tender offer and call for redemption of the entire $264.3 million aggregate principal amount of our outstanding 9.25% Senior 
Notes due 2016, to refinance our 2.50% Convertible Senior Subordinated Notes due 2011, to pay related fees, expenses and 
accrued interest and for general corporate purposes.

In June 2011, Amkor Technology Korea, Inc., a Korean subsidiary (“ATK”) entered into a 
billion (approximately $46 
million at inception) revolving credit facility with a Korean bank with a term of 12 months.  There is no outstanding balance 
under this revolving credit facility as of December 31, 2011.

In July 2011, ATK entered into a $50.0 million three-year secured term loan facility with a Korean bank.  As of December 31, 
2011, we had fully drawn on the loan.  The proceeds from the term loan funded capital expenditures.

In September 2011, ATK entered into a $50.0 million four and a half-year secured term loan facility with a Korean bank due in 
March 2016.  As of December 31, 2011, we have drawn $12.5 million, with the remainder available to be drawn throughout the 
four and a half-year term.  The proceeds from the term loan will be used to fund capital expenditures.

In November 2011, ATK amended the term loan due 2014 to defer until maturity the four quarterly payments for 2012 totaling 
$42.9 million.  All other terms and conditions remain the same.

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, 2011 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 Item 8 of this Annual Report on Form 10-K.

Capital Additions

In 2011, our capital additions totaled $453.0 million or approximately 16.3% of net sales.  Of this total, approximately 61% of 
our capital additions were made in packaging, 23% for test, and 16% for research and development and infrastructure projects.  
Our spending was focused primarily on new capacity for flip chip packaging and test services in support of the communications 
end market.  We currently expect that our 2012 capital additions will be approximately $300 million for projects already planned 
for 2012. The actual amount of our 2012 capital additions may vary materially and will depend on several factors including, 
among others, whether, when and to what extent any capital projects not yet planned, including those currently under senior-
level review and any others, are approved, commenced and completed in 2012, the performance of our business, economic and 
market conditions, the cash needs and investment opportunities for the business, the need for additional capacity and facilities 
to service customer demand and the availability of cash flow from operations or financing.

44

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

For the Year Ended December 31,

2011

2010

2009

(In thousands)

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

$

$

452,989

13,705

466,694

$

$

504,463
(58,794)
445,669

$

$

197,742
(24,246)
173,496

Cash Flows

Cash provided by operating activities was $516.8 million for the year ended December 31, 2011 compared to $542.6 million 
for the year ended December 31, 2010.  Free cash flow (which we define as net cash provided by operating activities less 
purchases of property, plant and equipment) decreased by $46.8 million to $50.1 million for the year ended December 31, 2011 
compared to $96.9 million for the year ended December 31, 2010.  Our free cash flow for the years ended December 31, 2011 
and 2010 was predominantly used to reduce debt and repurchase common stock.  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, 2011 
was as follows:

For the Year Ended December 31,

2011

2010

2009

(In thousands)

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

$

$

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

$

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

261,725
(240,878)
(49,651)

Operating activities:  Our cash flow from operating activities in 2011 decreased by $25.8 million compared to 2010.  Operating 
income for the year ended December 31, 2011 adjusted for depreciation and amortization, other operating activities and non-
cash items decreased $178.4 million from 2010, largely as a result of decreased gross profit.  Interest expense, net, for the year 
ended December 31, 2011 decreased by $14.0 million as compared with the year ended December 31, 2010 as a result of reduced 
debt levels in 2011 and debt refinanced with lower interest rate instruments.  Operating cash flows in 2011 and 2010 were reduced 
by $5.0 million and $7.5 million, respectively for fees in connection with debt repurchases.

Changes in assets and liabilities increased operating cash flows during 2011 by $76.4 million principally due to a decrease in 
accounts  receivable  reflecting  improved  collections  of  receivables.    During  2010,  changes  in  assets  and  liabilities  reduced 
operating cash flows by $35.2 million, principally due to an increase in accounts receivable, inventories, accounts payable and 
accrued expenses resulting from an increase in customer demand and overall business activity.  

Investing activities:  Our cash flows used in investing activities in 2011 decreased by $14.4 million.  This decrease was primarily 
due to a $21.0 million increase in purchases of property, plant and equipment from $445.7 million in 2010 to $466.7 million in 
2011.  This increase was partially offset by proceeds of $13.3 million, net of goods and services tax, from the sale of our Singapore 
facility in 2011.  

Financing activities:  Our net cash used in financing activities in 2011 decreased by$31.0 million from 2010.  Cash used in 
financing activities during 2011 consisted principally of $392.2 million of repayments, made up of $264.3 million of principal, 
and $7.8 million in tender premiums, on the 9.25% Senior Notes due 2016, $42.6 million for our 2.50% Convertible Senior 
Subordinated Notes due May 2011, $62.9 million of our Korean term loans and $14.6 million of other foreign amortizing debt. 
We incurred $5.9 million in debt issuance costs in 2011 associated with the issuance of our 6.625% Senior Notes due in 2021.  
Cash provided by financing activities during 2011 included the issuance of $400.0 million of our 2021 Notes  and proceeds of 
$62.5 million in Korean term loans.  Additionally, we used cash to repurchase $128.4 million of common stock under our stock 
repurchase program.

45

Cash used in financing activities during 2010 consisted principally of the repurchase of an aggregate $537.5 million principal 
amount of our senior notes and $99.9 million in repayments of our Korean term loans.  Financing cash flows in 2010 also 
included $6.7 million of debt retirement costs for transactions classified as financing activities.  We also incurred $7.5 million 
in debt issuance costs in 2010, primarily associated with the issuance of our 7.375% Senior Notes due 2018.  Cash provided by 
financing activities during 2010 included the issuance of $345.0 million of our 7.375% Senior Notes due 2018 and proceeds 
from a $180.0 million Korean term loan and a Taiwanese term loan of approximately $47.0 million.

We provide  the  following  supplemental  data  to  assist  our  investors  and  analysts  in  understanding  our  liquidity  and  capital 
resources.  Free cash flow represents net cash provided by operating activities less investing activities related to the acquisition 
of property, plant and equipment.  Free cash flow is not defined by U.S. GAAP, and our definition of free cash flow may not be 
comparable to similar companies and should not be considered a substitute for cash flow measures in accordance with U.S. 
GAAP.  We believe free cash flow provides our investors and analysts useful information to analyze our liquidity and capital 
resources.

For the Year Ended December 31,

2011

2010

2009

(In thousands)

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

$

$

516,832

466,694

50,138

$

$

542,595

445,669

96,926

$

$

261,725

173,496

88,229

Contractual Obligations

The following table summarizes our contractual obligations at December 31, 2011, and the effect such obligations are expected 
to have on our liquidity and cash flow in future periods.

Total

2012

2013

2014

2015

2016

Thereafter

Payments Due for Year Ending December 31,

(In thousands)

Total debt . . . . . . . . . . . . . . . . . . . . . . .

$

1,346,651

$

59,395

$

138,885

$

378,356

$

23,972

$

1,043

$

745,000

Scheduled interest payment

obligations(1) . . . . . . . . . . . . . . . .
Purchase obligations(2) . . . . . . . . . . . .

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

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

474,109

116,383

33,681

106,476

81,818

116,383

10,191

7,476

77,028

—

7,536

6,940

60,063

—

7,031

6,455

52,276

—

5,141

6,004

51,958

—

827

5,586

150,966

—

2,955

74,015

Total contractual obligations . . . . . . . .

$

2,077,300

$

275,263

$

230,389

$

451,905

$

87,393

$

59,414

$

972,936

_______________________________________

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

applicable at December 31, 2011 for variable rate debt.

(2)  Represents capital-related purchase obligations outstanding at December 31, 2011, for capital additions.

(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, 2011, include:

• 

• 

$30.1 million of foreign pension plan obligations for which the timing and actual amount of funding required is uncertain.  
We expect to contribute $3.2 million to the plans during 2012.

$4.3 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.

46

Off-Balance Sheet Arrangements

As of December 31, 2011, 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 leases.  Operating lease commitments are included in the contractual 
obligations table above.

Other Contingencies

We refer you to Note 16 to our Consolidated Financial Statements in 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 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.

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 a fixed 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 the 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, as well as 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, 

47

changes in the mix of income from our foreign subsidiaries, expiration of tax holidays and 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.

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), 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, including property, plant and equipment and finite-lived intangible 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 assess the likelihood of any 
adverse judgment or outcome related to these matters, as well as potential ranges of probable losses.  Our determination of the 
amount of reserves required, if any, for these contingencies is based on an analysis of each individual issue, often with the 
assistance of outside legal counsel.  We record provisions in our Consolidated Financial Statements for pending litigation when 
we determine that an unfavorable outcome is probable and the amount of the loss can be reasonably estimated.

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.

48

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 Item 8 of this Annual Report on Form 10-K.

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 market risk.  We have not entered into 
any derivative transactions during the year ended December 31, 2011 and have no outstanding contracts as of December 31, 
2011.

Foreign Currency Risks

We currently do not have forward contracts or other instruments to reduce our exposure to foreign currency gains and losses, 
although we do use natural hedging techniques to reduce foreign currency rate risks.

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, 2011, 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, 2011, our income before income taxes for 2011 would have been approximately $16.2 million 
lower.  Our most significant foreign currency exposure related to the net monetary liabilities of our Korean and Taiwanese 
subsidiaries. 

In addition, we have foreign currency exchange rate exposure on our results of operations.  For the year ended December 31, 
2011,  approximately  89%  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, 2011, approximately 
59% 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, 2011, 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, 
2011, exchange rates of the U.S. dollar compared to all of these Asian-based currencies as of December 31, 2011, our operating 
income for 2011 would have been approximately $75 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  Japanese  yen  is  the  functional  currency.  To the  extent  the  U.S. dollar  strengthens  against  the  Japanese  yen,  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 
Japanese yen.  The effect of foreign exchange rate translation on our Consolidated Balance Sheet for the years ended December 31, 

49

2011 and 2010, was a net foreign translation gain of $1.2 million and $8.2 million, respectively, and was recognized as an 
adjustment to equity through other comprehensive income.

Interest Rate Risks

We have interest rate risk with respect to our long-term 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 consisted of senior notes, senior 
subordinated notes and subordinated notes.  Our variable rate debt is principally related to our foreign borrowings and any 
amounts outstanding under our $100.0 million revolving line of credit, under which no amounts were drawn as of December 31, 
2011.  As of December 31, 2010, we had a total of $1,364.3 million of debt of which 73.4% was fixed rate debt and 26.6% was 
variable rate debt.  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, 2011.

2012

2013

2014

2015

2016

Thereafter

Total

Fair Value

Long term debt:. . . . . . . . . . . . . . .

Fixed rate debt (In thousands). . . .

$

—

$

—

$ 250,000

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

—%

—%

6.0%

Variable rate debt (In thousands) .

$

59,395

$ 138,885

$ 128,356

$

$

—

—%

23,972

$

$

—

$ 745,000

$ 995,000

$ 1,142,674

—%

7.0%

6.7%

1,043

$

—

$ 351,651

$

352,679

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

3.6%

5.3%

4.5%

3.0%

5.6%

—%

4.5%

See Note 15 to our Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K for a discussion 
on the fair valuation of our debt instruments.

Equity Price Risks

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.

50

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, 2011, 2010 and 2009 . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Balance Sheets — December 31, 2011 and 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Stockholders’ Equity and Comprehensive Income — Years ended

December 31, 2011, 2010 and 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Statements of Cash Flows — Years ended December 31, 2011, 2010 and 2009. . . . . . . . . . . . . . . . . . . .
Notes to Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schedule II — Valuation and Qualifying Accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

52

53

54

55

56

57

93

51

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, 2011 and 2010, and the results of their 
operations and their cash flows for each of the three years in the period ended December 31, 2011 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, 2011 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
February 23, 2012 

52

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 (gain) on debt retirement, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equity in earnings of unconsolidated affiliate . . . . . . . . . . . . . . . . . . . .
Other income, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total other expense, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income tax expense (benefit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income attributable to noncontrolling interests. . . . . . . . . . . . . . . . . . .
Net income attributable to Amkor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income attributable to Amkor per common share:

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

Shares used in computing per common share amounts:

For the Year Ended December 31,

2011

2010

2009

(In thousands, except per share data)

$

2,776,359

$

2,939,483

$

2,179,109

2,285,790

490,569

2,275,727

663,756

1,698,713

480,396

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

$

$

$

210,626

44,453

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

190,829

273,686

183,312

282,602

183,067

263,379

The accompanying notes are an integral part of these statements.

53

AMKOR TECHNOLOGY, INC.
CONSOLIDATED BALANCE SHEETS

Current assets:

ASSETS

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

$

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Commitments and contingencies (see 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, 197,359 and

183,467 shares issued, and 168,628 and 183,420 shares outstanding, in 2011
and 2010, respectively. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional paid-in capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated deficit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Treasury stock, at cost, 28,731 and 47 shares in 2011 and 2010, respectively. . . . . . . . . .
Total Amkor stockholders’ equity: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Noncontrolling interests in subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total liabilities and equity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

$

The accompanying notes are an integral part of these statements.

54

December 31,

2011

2010

(In thousands,
except per share data)

434,631
2,680

$

404,998
17,782

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

$

$

392,327
17,970
191,072
37,918
1,062,067

1,537,226
13,524
28,215
1,945
93,845
2,736,822

150,081
443,333
178,794
772,208

964,219
250,000
103,543
10,171
2,100,141

—

—

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

$

183
1,504,927
(890,270)
15,457
(284)
630,013
6,668
636,681
2,736,822

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

—

183,171

$

183

$ 1,500,246

$ (1,122,241)

$

AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
AND COMPREHENSIVE INCOME

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

Balance at December 31,
2008. . . . . . . . . . . . . . .

183,035

$

183

$ 1,496,976

$ (1,278,221)

$

18,201

(In thousands)

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

—

—

155,980

—

—

—

—

—

—

—

—

—

13

—

—

1

—

—

—

693

2,577

—

—

—

—

—

—

—

—

—

—

—

231,971

—

—

—

1,166

3,515

—

—

—

—

—

—

—

100,484

—

—

821

5,010

—

—

—

—

—

—

—

$

$

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

$

237,139

$

6,024

$

243,163

155,980

303

156,283

(12,632)

(548)

142,800

693

2,577

—

165

468

—

—

(12,632)

(383)

143,268

693

2,577

$

383,209

$

6,492

$

389,701

231,971

176

232,147

2,270

8,166

—

—

2,270

8,166

242,407

176

242,583

(47)

(284)

(284)

—

—

—

—

1,166

3,515

—

—

—

(284)

1,166

3,515

—

—

—

—

—

—

91,808

1,287

93,095

(5,800)

1,192

—

—

(5,800)

1,192

87,200

1,287

88,487

(12,632)

(548)

—

—

5,021

—

2,270

8,166

—

—

—

(5,800)

1,192

—

—

—

100,497

—

(28,573)

(129,500)

(129,500)

—

—

—

(111)

(776)

(776)

—

—

—

—

822

5,010

—

—

—

—

—

100,497

(129,500)

(776)

822

5,010

183,467

$

183

$ 1,504,927

$ (890,270)

$

15,457

(47)

$

(284)

$

630,013

$

6,668

$

636,681

—

91,808

—

Adjustments to unrealized
components of defined
benefit pension plan,
net of tax . . . . . . . . . . .

Cumulative translation

adjustment . . . . . . . . . .

Comprehensive

income . . . . . . . . . .

Issuance of stock through

share-based
compensation plans . . .

Share-based

compensation expense.

Balance at December 31,
2009. . . . . . . . . . . . . . .

Adjustments to unrealized
components of defined
benefit pension plan,
net of tax . . . . . . . . . . .

Cumulative translation

adjustment . . . . . . . . . .

Comprehensive

income . . . . . . . . . .

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

Issuance of stock through

share-based
compensation plans . . .

Share-based

compensation expense.

Balance at December 31,
2010. . . . . . . . . . . . . . .

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

—

Adjustments to unrealized
components of defined
benefit pension plan,
net of tax . . . . . . . . . . .

Cumulative translation

adjustment . . . . . . . . . .

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.

Balance at December 31,
2011. . . . . . . . . . . . . . .

—

—

136

—

—

—

—

296

—

—

—

541

—

197,359

$

197

$ 1,611,242

$ (798,462)

$

10,849

(28,731)

$ (130,560)

$

693,266

$

7,955

$

701,221

The accompanying notes are an integral part of these statements.

55

AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

Cash flows from operating activities:

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

$

93,095

$

232,147

$

156,283

For the Year Ended December 31,

2011

2010

2009

(In thousands)

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 (gain) on debt retirement, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Investment in unconsolidated affiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchase of equipment leased to unconsolidated affiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 credit facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments under short-term credit facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from issuance of long-term debt, related party . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments of long-term debt, net of 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 used in financing activities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Effect of exchange rate fluctuations on cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . .
Net increase (decrease) 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:

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

Non-cash investing activities:

Receivable for equipment leased to unconsolidated affiliate . . . . . . . . . . . . . . . . . . . . . . . .
Common stock issuance for conversion of related party 6.25% convertible subordinated

notes due December 2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

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)

6,567
(6,567)
20,000
(15,000)
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

—

100,000

$

$

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

—

—

$

$

305,510
4,780
(80)
(30,599)
(2,373)
(15,088)
7,262
2,577
838

(68,912)
(4,338)
(20,991)
5,173
(1,214)
96,854
(108,712)
(65,245)
261,725

(173,496)
3,116
(16,735)
(44,681)
—
(2,898)
(6,184)
(240,878)

41,410
(10,171)
15,000
—
100,000
150,000
(338,104)
(8,479)
—
693
—
(49,651)
(106)
(28,910)
424,316
395,406

116,223
11,991

44,681

—

The accompanying notes are an integral part of these statements.

56

 
 
 
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 package 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 material suppliers;

•  Developing 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 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 from those estimates.

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, 2011, the combined book 
value of the assets and liabilities associated with these Philippine realty corporations included in our Consolidated Balance Sheet 
was $17.2 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, 2011, 2010 or 2009.  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 average exchange rates in effect during the period, 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 and was the functional currency of our subsidiaries in 
Taiwan prior to July 1, 2009.  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 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

57

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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, 2011, 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 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 offerings.

We are subject to certain legal proceedings, lawsuits and other claims, as discussed in Note 16.  We assess the likelihood of any 
adverse judgment or outcome related to these matters, as well as potential ranges of probable losses.  Our determination of the 
amount of reserves required, if any, for these contingencies is based on an analysis of each individual issue, often with the 
assistance of outside legal counsel.  We record provisions in our Consolidated Financial Statements for pending litigation when 
we determine that an unfavorable outcome is probable and the amount of the loss can be reasonably estimated.

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.

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.

58

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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), 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.

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.  Depreciation expense 
recorded  as  costs  of  sales  was  $302.0  million,  $290.2  million  and  $273.3  million  for  2011,  2010  and  2009,  respectively.  
Depreciation expense recorded as selling, general and administrative expenses was $24.1 million, $23.0 million, and $19.6 
million for 2011, 2010 and 2009, respectively.  Depreciation expense recorded as research and development expenses was $4.3 
million, $4.5 million and $5.6 million for 2011, 2010 and 2009, respectively.

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.

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 $5.2 million, $5.9 million and $7.0 million for 2011, 2010 and 2009, respectively.

Investments

On October 30, 2009, we acquired a 30% interest in a packaging and test services business in Japan, J-Devices Corporation (“J-
Devices”).  See Note 10 for additional information.  Our investment is accounted for as an equity method investment.  We 
evaluate the investment for impairment whenever events or changes in circumstances indicate that the carrying amount may not 
be recoverable.  To the extent the book value of the investment exceeds its assessed fair value, we will record an appropriate 
impairment charge.

59

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Other Non-current Assets

Other non-current assets consist principally of deferred income tax assets, deferred debt issuance costs, financing lease receivables 
and refundable security deposits.

Other Non-current Liabilities

Other non-current liabilities consist primarily of customer advance payments, deferred revenue 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:

December 31,

2011

2010

(In thousands)

Unrealized foreign currency translation gains, net of tax . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrealized components of defined benefit pension plan adjustments, net of tax . . . . . . . . . .
Total accumulated other comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

21,359
(10,510)
10,849

$

$

20,167
(4,710)
15,457

The unrealized foreign currency translation gains are net of deferred income tax expense of $1.8 million at December 31, 2011.  
The unrealized components of defined benefit pension plan adjustments are net of deferred income tax benefits of $1.4 million 
and $1.0 million at December 31, 2011 and 2010, 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 Notes 3 and 14 for more 
information.

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 a fixed 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.

60

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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 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 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.    See  Note 4  for  more  information  regarding 
unrecognized income tax benefits.

2.  New Accounting Standards

Recently Adopted Standards

In January 2010, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2010-06, 
Improving Disclosures about Fair Value Measurements, which amended Accounting Standards Codification (“ASC”) Topic 
820, Fair Value Measurements, to require additional disclosures related to activity within Level 3 of the fair value hierarchy.  
This ASU is effective for reporting periods beginning after December 15, 2010.  Our adoption of ASU 2010-06 on January 1, 
2011, did not have an impact on our financial statements.

61

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

In  October  2009,  the  FASB  issued  ASU  2009-13,  Revenue  Recognition  (Topic  605) —  Multiple-Deliverable  Revenue 
Arrangements, which supersedes certain guidance in ASC 605-25, Revenue Recognition — Multiple Element Arrangements.  
This topic requires an entity to allocate arrangement consideration at the inception of an arrangement to all of its deliverables 
based on their relative selling prices.  This ASU is effective for annual reporting periods beginning after June 15, 2010.  Our 
adoption of ASU 2009-13 on January 1, 2011, did not have an impact on our financial statements.

Recently Issued Standards

In May 2011, the FASB issued 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.  Early adoption is not permitted.  ASU 2011-04 will only affect our financial statement presentation.

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.  Early adoption is permitted and full retrospective application is required.  ASU 
2011-05 will only affect our financial statement presentation.

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,

2011

2010

2009

(In thousands)

2,025

2,985

5,010

$

$

2,473

1,042

3,515

$

$

2,577

—

2,577

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

Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selling, general and administrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total share-based compensation expense . . . . . . . . . . . . . . . . . . . . . . . .

$

$

Equity Incentive Plans

For the Year Ended December 31,

2011

2010

2009

(In thousands)

31

$

27

$

4,332

647

3,053

435

5,010

$

3,515

$

81

2,097

399

2,577

2007 Equity Incentive Plan.  On August 6, 2007, our shareholders approved the 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 
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 Equity Incentive Plan.

62

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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.

A summary of the stock plans, the respective plan termination dates and shares available for grant as of December 31, 2011, is 
shown below:

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

Plan termination date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shares available for grant at December 31, 2011 (in thousands). . . . . . . .

2007 Equity

Incentive Plan

10

2003

Inducement Plan

10

Board of Directors
Discretion

Board of Directors
Discretion

14,996

444

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, 2011:

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, 2010. . . . . . . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited or expired. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding at December 31, 2011. . . . . . . . . . . . . . . . . .
Fully vested and expected to vest at December 31, 2011 .
Exercisable at December 31, 2011 . . . . . . . . . . . . . . . . . .

7,843

$

120

(188)

(1,723)

6,052

6,027

5,648

$

$

$

10.26

6.46

4.99

11.56

9.97

9.98

10.10

2.95

2.88

2.63

$

$

$

109

109

109

63

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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

For the Year Ended
December 31,

2011

2010

2009

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

6.2

2.4%

67%

—

6.0

3.0%

71%

—

$

4.06

$

5.00

$

5.9

2.3%

76%

—

2.70

The intrinsic value of options exercised for the years ended December 31, 2011, 2010 and 2009 was $0.4 million, $0.3 million 
and $0.2 million, respectively.  For the years ended December 31, 2011, 2010 and 2009, cash received under all share-based 
payment arrangements was $0.8 million, $1.0 million and $0.7 million, respectively.  There was no tax benefit realized.  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 any forfeiture estimate, was $1.3 million as of December 31, 
2011, which is expected to be recognized over a weighted-average period of 1.2 years beginning January 1, 2012.  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 Equity Incentive 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, the restricted shares will vest upon the recipient’s death, disability or retirement, or upon a change in control 
of Amkor.  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 Equity Incentive Plan provides that 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 restricted shares upon retirement.  Consequently, under federal tax 
law, when a recipient becomes retirement eligible, the employee is immediately taxable on 100% of their restricted shares 
whether or not the recipient actually retires.  Upon the earlier of retirement eligibility or vesting of the restricted shares, the 
recipient has a tax liability 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, 2011:

Nonvested at December 31, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Awards granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Awards vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Awards forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nonvested at December 31, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

372

$

809
(372)
(116)
693

$

5.96

7.70

6.82

7.18

7.33

Number of
Shares
(In thousands)

Weighted 
Average
Grant Date
Fair Value
(Per Share)

64

 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Awards vested include 197,000 shares for retirement eligible recipients whose 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 2011 was $2.6 
million.

The  unrecognized  compensation  cost,  including  a  forfeiture  estimate,  was  $3.5  million  as  of  December 31,  2011,  which  is 
expected to be recognized over a weighted average period of approximately 2.7 years beginning January 1, 2012.  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.

4. 

Income Taxes

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

For the Year Ended December 31,

2011

2010

2009

(In thousands)

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

(1,012)
101,231

100,219

$

$

(15,604)
266,763

251,159

$

$

(45,512)
172,035

126,523

The provision for income taxes includes federal, state and foreign taxes currently 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 (benefit) for income taxes are as follows:

For the Year Ended December 31,

2011

2010

2009

(In thousands)

—

$

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

(1,882)
316

2,405

839

2,286
119
(33,004)
(30,599)
(29,760)

$

19,012

$

Current

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

$

Deferred

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

Total provision (benefit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

65

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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

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

For the Year Ended December 31,

2011

2010

2009

(In thousands)

$

35,039

$

87,929

$

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

921

$

7,124

$

523
(80,461)
3,176

—

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

$

44,257

884
(56,301)
4,926

22,714
(53,722)
12,198
(9,377)
4,846
(185)
(29,760)

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other non-current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

$

66

December 31,

2011

2010

(In thousands)

$

162,655

$

163,661

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

$

$

$

18,221

22,366

20,065

35,805

6,486

17,522

284,126
(223,612)
60,514

3,460

6,899

7,478

17,837

42,677

8,438

42,750
(5,683)
(2,828)
42,677

 
 
 
 
 
 
 
 
 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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.

In 2009, the valuation allowance on our deferred tax assets decreased by $52.7 million primarily as a result of a $25.6 million 
decrease associated with the release of a valuation allowance on net deferred tax assets of our subsidiary in Korea and a $22.7 
million decrease associated with the expiration of U.S. capital loss carryforwards.

At December 31, 2011, the valuation allowance included amounts relating to tax benefits of tax deductions associated with 
employee stock options.  If these benefits are subsequently realized, they will be recorded to contributed capital in the amount 
of $7.2 million.  As a result of net operating loss carryforwards, we were not able to recognize the excess tax benefits of stock 
option deductions in 2011 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%.  As a result of net operating losses we did not realize any benefits related to these tax holidays in 2009.  We 
recognized $3.0 million and $25.4 million in tax benefits as a result of the tax holidays on qualifying operations in Korea in 
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 2011, 2010 
and 2009, our Philippines operations recognized $2.7 million, $5.9 million and $3.4 million, respectively, in tax benefits as a 
result of the tax holiday on certain qualifying operations in the Philippines.

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, 2010 or 
2009 in China.  The statutory tax rate in China is currently 24% for 2011 and 25% after 2011.

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 such tax holidays 
in 2011, 2010 or 2009.  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.

67

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 beginning January 1, 2010.  In 2011, 2010 and 2009, we did not recognize significant tax benefits 
as a result of the tax holiday on certain qualifying operations in Taiwan.  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,

2011

2010

Expiration

(In thousands)

$

396,929

$

233,085

44,082

386,029

251,127

2020-2031

2012-2031

81,334

2012-2020

The deferred tax assets associated with approximately $42.4 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.  U.S. capital 
loss carryforwards of $56.8 million expired as of December 31, 2009.  The deferred tax assets associated with our U.S. and state 
net  operating  losses  and  capital  losses  available  for  carryforward  have  been  fully  reserved  with  valuation  allowances  at 
December 31, 2011 and 2010.  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, 2011, we have various tax credits available to be carried forward including U.S. foreign income tax credits 
totaling $8.1 million, expiring in 2016, Taiwanese income tax credits totaling $2.5 million expiring in varying amounts through 
2014 and Korean income tax credits totaling $6.8 million expiring in varying amounts through 2016.  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 2011, 2010 and 2009 have been recognized in our income tax provision 
(benefit).

Income taxes have not been provided on approximately $518.7 million of the undistributed earnings of our foreign subsidiaries 
at December 31, 2011 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 $17.3 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.

In 2009, we provided U.S. income tax on approximately $13.8 million of foreign earnings from two subsidiaries where we made 
the decision to not reinvest indefinitely based on changed facts and circumstances.  The U.S. income tax of $4.8 million on these 
foreign dividends was fully offset by the benefit of our U.S. net operating losses.

We operate in and file income tax returns in various U.S. and foreign jurisdictions which are subject to examination by tax 
authorities.  The Internal Revenue Service is currently examining the United States income tax return for the 2009 tax year.  The 
Bureau of Internal Revenue has started examination of our 2008 Philippines income tax return.  In 2009, the tax authorities in 
Korea examined income tax returns of our subsidiary covering the periods from 2004 to 2008.  The examination did not result 

68

 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

in significant additional income tax payments.  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

2008-2011

2009-2011

2008-2011

2006-2011

2006-2011

2005-2011

2004-2011

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,

2011

2010

2009

(In thousands)

$

10,503

$

5,091

$

24

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

$

4,933

2,055
(557)
—
(1,019)
10,503

$

$

20,920

1,332

1,243
(17,456)
(281)
(667)
5,091

Our unrecognized tax benefits decreased from $10.5 million at December 31, 2010 to $7.9 million as of December 31, 2011 
primarily because of a $1.8 million reduction related to eligibility for certain tax incentives and a $1.0 million settlement of a 
contested prior year deduction in a foreign jurisdiction.  Approximately $0.9 million of the $2.6 million of net reductions of 
unrecognized tax benefits decreased our income tax expense in 2011.  At December 31, 2011, substantially all of our gross 
unrecognized tax benefits would reduce our effective tax rate, if recognized.

The liability related to our unrecognized tax benefits is $4.3 million as of December 31, 2011 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 $6.2 million within 12 months 
due to an anticipated ruling related to revenue attribution.

We have recognized a $0.3 million benefit for interest and penalties in the Consolidated Statement of Operations for the year 
ended December 31, 2011 in connection with our unrecognized tax benefits.  Interest and penalties are classified as income taxes 
in the financial statements.  The total amount of interest and penalties included in other non-current liabilities in connection with 
our unrecognized tax benefits is $0.2 million as of December 31, 2011.

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.

69

 
 
 
 
 
 
 
 
 
 
 
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  payment  awards  that  contain  nonforfeitable  rights  to  dividends  or  dividend  equivalents  are  considered  participating 
securities and are included in the computation of earnings per share 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 earnings per share.

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

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

Stock options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unvested restricted shares. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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:

For the Year Ended December 31,

2011

2010

2009

(In thousands, except per share data)

$

91,808
(332)
91,476

231,971
(470)
231,501

332

—

—

16,103

470

1,318

6,370

16,103

$

155,980

—

155,980

—

2,084

6,370

12,086

$

107,911

$

255,762

$

176,520

190,829

183,312

183,067

149

50

—

—
82,658

273,686

299

64

2,918

13,351
82,658

282,602

61

—

4,530

13,351
62,370

263,379

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

$

$

0.48

0.39

$

1.26

0.91

0.85

0.67

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:

For the Year Ended December 31,

2011

2010

2009

(In thousands)

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

5,070

1,094

695

6,859

6,585

—

—

6,585

7,982

—

—

7,982

70

 
 
 
 
 
 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

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

$

$

396,870
(3,919)
(624)
392,327

December 31,

2011

2010

(In thousands)

7. 

Inventories

Inventories consist of the following:

Raw materials and purchased components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Work-in-process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

158,656

39,771

198,427

$

$

145,043

46,029

191,072

December 31,

2011

2010

(In thousands)

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,

2011

2010

(In thousands)

$

106,338

$

106,338

19,945

871,970

19,945

838,237

3,016,430

2,749,445

186,378
19,736

26,818

176,376
20,611

50,610

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

$

3,961,562
(2,424,336)
1,537,226

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

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

$

$

452,989

13,705

466,694

$

$

504,463
(58,794)
445,669

$

$

197,742
(24,246)
173,496

For the Year Ended December 31,

2011

2010

2009

(In thousands)

71

 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

9. 

Intangible Assets

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

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

Intangibles as of December 31, 2010, consist of the following:

Gross

Accumulated
Amortization

(In thousands)

Net

Gross

Accumulated
Amortization

(In thousands)

Net

Patents and technology rights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer relationships. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total intangibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

52,587
16,940

69,527

$

$

(47,864)
(8,139)
(56,003)

$

$

4,723
8,801

13,524

Amortization of identifiable intangible assets was $5.2 million, $5.9 million and $7.0 million in 2011, 2010 and 2009, respectively.  
Based on the amortizing assets recognized in our balance sheet at December 31, 2011, amortization for each of the next five 
years is estimated as follows:

2012. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2014. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total amortization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(In thousands)

$

3,724

3,364

652

350

122

170

$

8,382

10.  Investments

Investments consist of the following:

December 31,

2011

2010

Carrying
Value

Ownership
Percentage

Carrying
Value

Ownership
Percentage

(In thousands)

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

$

36,707

30.0%

$

28,215

30.0%

J-Devices Corporation

In October 2009, Amkor and Toshiba Corporation (“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 
now 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 interest.  The options, valued at $1.7 million, are exercisable at our discretion and permit us to increase our percentage 

72

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

ownership of J-Devices up to 60% in 2012, 66% in 2014 and 80% in 2015.  In 2014 and beyond, Toshiba has the option, at its 
discretion, to sell the shares it owns to us if we have exercised any of our options.  After we own 80% or more shares, the former 
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 financial position of J-Devices at the time of exercise.

J-Devices is a separate business and is not integrated with our existing Japan-based businesses.  We account for our investment 
in J-Devices using the equity method of accounting.  J-Devices is a variable interest entity, but we are not the primary beneficiary 
as of December 31, 2011.

Under the equity method of accounting, we recognize our 30% 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  the  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, 2011 and 2010, the unamortized 
basis difference was $0.9 million and $1.4 million, respectively.  In 2011, 2010 and 2009, our equity earnings in J-Devices, net 
of J-Devices’ income taxes in Japan, were $7.1 million, $6.4 million and $2.4 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 is accounted for as a direct financing lease.  The equipment lease expires in October 2012.  In October 
2011, J-Devices purchased $3.9 million of this leased packaging and test equipment from our subsidiary.  During 2011, we 
received lease payments of ¥1.0 billion (approximately $11.6 million), which included imputed interest.  As of December 31, 
2011, the total remaining minimum lease payments to be received are ¥757.0 million (approximately $9.7 million).  The unearned 
interest income is ¥28.3 million (approximately $0.4 million).  At the end of the primary lease term, J-Devices has an option to 
purchase the remaining equipment for ¥848.8 million (approximately $10.9 million).  In 2011, 2010 and 2009, we recognized 
$0.8 million, $1.1 million and $0.2 million in interest income, respectively.  Our lease receivable, net consists of the following:

Current (Other accounts receivable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-current (Other assets) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total lease receivable, net. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

11.  Accrued Expenses

Accrued expenses consist of the following:

December 31,
2011

December 31,
2010

(In thousands)

20,240
—
20,240

$

$

12,327
22,795
35,122

December 31,

2011

2010

(In thousands)

Payroll and benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer advances and deferred revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued interest. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued severance plan obligations (Note 13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

$

73

$

59,928

$

34,672

11,941

7,476

4,446

39,824
158,287

$

69,903

34,164

12,332

6,131

10,422

45,842
178,794

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,

2011

2010

(In thousands)

Debt of Amkor Technology, Inc.

Senior secured credit facilities:

$100 million revolving credit facility, LIBOR plus 2.25%-2.75%, due April 2015. . . . . .

$

—

$

—

Senior notes:

9.25% Senior notes, due June 2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.375% Senior notes, due May 2018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.625% Senior notes, due June 2021, $75 million related party . . . . . . . . . . . . . . . . . . . .

Senior subordinated notes:

2.5% Convertible senior subordinated notes, due May 2011 . . . . . . . . . . . . . . . . . . . . . . .
6.0% Convertible senior subordinated notes, due April 2014, $150 million related party.

Subordinated notes:

6.25% Convertible subordinated notes, due December 2013, related party. . . . . . . . . . . .

Debt of subsidiaries:

Working capital facility, LIBOR plus 1.7%, due January 2011. . . . . . . . . . . . . . . . . . . . .
Working capital facility, LIBOR plus 2.8%, due January 2012 and April 2012 . . . . . . . .
. .
Term loan TIBOR plus 0.65%, due July 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Term loan TIBOR plus 0.8%, due September 2012. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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, 90-day primary commercial paper rate plus 0.835%, due April 2015 . . . . . . .
Term loan, bank funding rate-linked base rate plus 1.7%, due March 2016 . . . . . . . . . . .
Secured equipment and property financing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

$

—

345,000

400,000

—

250,000

—

—

20,000

—

—

9,495

103,000

107,140

50,000

49,504

12,512

264,283

345,000

—

42,579

250,000

100,000

15,000

—

—

2,680

19,848

123,000

149,996

—

51,042

—

—
1,346,651
(59,395)
1,287,256

$

872
1,364,300
(150,081)
1,214,219

74

 
 
 
 
 
 
 
 
 
 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Debt of Amkor Technology, Inc.

Senior Secured Credit Facilities

In September 2010, we amended our $100.0 million senior secured revolving credit facility and extended its term by two years 
to April 2015.  The facility has a letter of credit sub-limit of $25.0 million.  The amendment reduces the interest rate on borrowings 
under the facility by 100 basis points on base rate loans and 125 basis points on LIBOR rate loans.  As amended, interest is 
charged under the credit facility at a floating rate based on the base rate in effect from time to time plus the applicable margins 
which range from 1.0% to 1.5% for base rate revolving loans or LIBOR plus 2.25% to 2.75% for LIBOR revolving loans.  The 
LIBOR-based interest rate at December 31, 2011 was 2.5%.  In connection with amending and extending our $100.0 million 
facility, we capitalized $0.3 million of deferred debt issuance costs for the year ended December 31, 2010.  There have been no 
borrowings under our senior secured revolving credit facility as of December 31, 2011; however, we have utilized $0.3 million 
of the available letter of credit sub-facility of $25.0 million.  The borrowing base for the revolving credit facility is based on the 
amount of our eligible accounts receivable, which exceeded $100.0 million as of December 31, 2011.

Senior Notes

In May 2006, we issued $400.0 million of 9.25% Senior Notes due June 2016 (the “2016 Notes”).  In November 2007, we 
repurchased in an open market transaction $10.0 million of these notes.  In May 2010, we announced a tender offer for up to 
$175.0 million of our outstanding 2016 Notes.  We used proceeds from the lower interest rate ATK Loan, discussed below to 
purchase $125.7 million in 2016 Notes tendered.  We recorded a $6.7 million loss on extinguishment related to premiums and 
fees paid for the tender of the 2016 Notes and a $1.6 million charge for the write-off of the associated unamortized deferred 
debt issuance costs for the year ended December 31, 2010.  In June 2011, we used the net proceeds from the issuance of the 
6.625% Senior Notes due 2021 (the “2021 Notes”), discussed below, to fund the tender offer and call for redemption of the 
entire $264.3 million aggregate principal amount of our outstanding 2016 Notes.  We purchased $156.7 million of the 2016 
Notes in the tender offer and $107.6 million in the call.  We recorded a $12.8 million loss on extinguishment related to the 
premiums and fees paid for the tender (approximately $7.8 million) and call (approximately $5.0 million) of the 2016 Notes 
and a $2.7 million charge for the write-off of the associated unamortized deferred debt issuance costs.  Both charges are included 
in loss on debt retirement, net in our Consolidated Statement of Income for the year ended December 31, 2011.

In May 2010, we issued $345.0 million of our 7.375% Senior Notes due 2018 (the “2018 Notes”).  The 2018 Notes were issued 
at par and are senior unsecured obligations.  Interest is payable semi-annually on May 1 and November 1 of each year, commencing 
on  November 1,  2010.   We incurred  $7.1  million  of  debt  issuance  costs  associated  with  the  2018  Notes  in  the  year  ended 
December 31, 2010.  

In May 2011, we issued $400.0 million of the 2021 Notes.  The 2021 Notes were issued at par and are senior unsecured obligations.  
Interest is payable semi-annually on June 1 and December 1 of each year at a rate of 6.625%, commencing on December 1, 
2011.  Mr. James J. Kim, our Executive Chairman of the Board of Directors and our largest stockholder, and an affiliate of Mr. 
James J. Kim (collectively, the “Kim Purchasers”) purchased $75.0 million aggregate principal amount of the 2021 Notes in the 
offering.  In addition, we entered into a letter agreement with the Kim Purchasers pursuant to which we agreed to register the 
resale of their 2021 Notes with the U.S. Securities Exchange Commission upon request of the Kim Purchasers at any time after 
May 20, 2012.  We incurred $5.9 million of debt issuance costs associated with the 2021 Notes in the year ended December 31, 
2011.

The senior notes contain a number of affirmative and negative covenants which could restrict our operations.

Senior Subordinated and Subordinated Notes

In May 2006, we issued $190.0 million of our 2.5% Convertible Senior Subordinated Notes due May 2011 (the “May 2011 
Notes”).  The May 2011 Notes were convertible at any time, prior to the maturity date, into our common stock at a price of 
approximately $14.59 per share, subject to adjustment.  The May 2011 Notes were subordinate to the prior payment in full of 
all of our senior debt.  In 2009, we repurchased in open market transactions $69.0 million principal amount of these notes.  We 
recorded a gain on extinguishment of $9.5 million which was partially offset by the write-off of a proportionate amount of 
deferred debt issuance costs of $0.9 million.  In 2008, we repurchased in open market transactions $78.5 million principal amount 
of these notes.  We recorded a gain on extinguishment of $27.1 million which was partially offset by the write-off of a proportionate 

75

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

amount of deferred debt issuance costs of $1.3 million.  In June 2011, we used a portion of the net proceeds of the 2021 Notes  
to refinance the remaining $42.6 million of the 2011 Notes.  

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.  The 
$244.5 million of net proceeds received were used to reduce debt.  In connection with the issuance of the 2014 Notes, we incurred 
$5.5 million of debt issuance costs in 2009.

In November 2005, we issued $100.0 million of our 6.25% Convertible Subordinated Notes due December 2013 (the “December 
2013 Notes”) in a private placement to Mr. James J. Kim, our Executive Chairman of the Board of Directors, and certain Kim 
family members.  The December 2013 Notes were convertible at any time prior to the maturity date into our common stock at 
a price of approximately $7.49 per share (the market price of our common stock on the date of issuance of the December 2013 
Notes was $6.20 per share).  The December 2013 Notes were subordinate to the prior payment in full of all of our senior and 
senior subordinated debt.  The proceeds from the sale of the December 2013 Notes were used to purchase a portion of existing 
debt.  In January 2011, holders of all $100.0 million of the outstanding December 2013 Notes converted their notes into an 
aggregate of 13,351,131 shares of our common stock.  There was no gain or loss recorded as a result of the conversion.  Forfeited 
accrued interest of $0.9 million and unamortized deferred debt costs of $0.4 million were included in the net carrying amount 
of the debt recorded to our capital accounts upon conversion in 2011.

The convertible notes contain a number of affirmative and negative covenants which could restrict our operations.

Debt of Subsidiaries

In January 2009, Amkor Assembly & Test (Shanghai) Co, Ltd. (“AATS”), a Chinese subsidiary, entered into a $50.0 million 
working capital facility agreement with a Chinese bank maturing in January 2011.  The facility was collateralized with certain 
real property and buildings in China.  Principal amounts borrowed were required to be repaid within twelve months of the 
drawdown date and could be prepaid at any time without penalty.  As of January 2010, no additional borrowings could be made 
according to the terms of the agreement.  The working capital facility bore interest at LIBOR plus 1.7% (2.43% as of December 31, 
2010) and was payable in semi-annual payments.  In January 2011, the outstanding balance of $15.0 million was repaid at 
maturity and AATS entered into a new $50.0 million  working capital facility agreement with the same Chinese bank maturing 
in January 2013.  The new facility bears interest at LIBOR plus 2.8% (3.27% as of December 31, 2011).  All other terms and 
conditions are consistent with the prior facility.  At December 31, 2011, $20.0 million was outstanding under the facility.  In 
January 2012, AATS  drew an additional $20.0 million on the facility, due January 2013, as well as repaid $15.0 million.  All 
other terms and conditions are consistent with the prior facilities.  The working capital facility contains certain affirmative and 
negative covenants, which could restrict our operations.  If we were to default on our obligations under any of these facilities, 
we would not be permitted to draw additional amounts, and the lenders could accelerate our obligation to pay all outstanding 
amounts.

billion (approximately $46 
In June 2011, Amkor Technology Korea, Inc., a Korean subsidiary (“ATK”) entered into a 
million at inception) revolving credit facility with a Korean bank with a term of 12 months.  The loan bears interest at the CD 
base interest rate (as quoted by the Korea Financial Investment Association) plus 2.20%.  Principal is payable upon maturity 
and interest is paid monthly.  The loan is collateralized with certain land, buildings and equipment located at our ATK facilities.  
There is no outstanding balance under this revolving credit facility as of December 31, 2011.

In March 2010, Amkor Iwate Corporation, a Japanese subsidiary (“AIC”) entered into a ¥1.0 billion (approximately $11 million 
at inception) term loan with a Japanese bank originally due October 2012.  In May 2010, we prepaid $5.3 million of the outstanding 
loan balance, which changed the maturity date to July 2011.  Principal amounts borrowed are to be repaid in equal monthly 
payments and may be prepaid at any time without penalty.  The term loan accrued interest monthly at the Tokyo Interbank 
Offering Rate (“TIBOR”) plus 0.65%.  The term loan was collateralized with certain equipment located at our AIC facilities.  
The proceeds of the term loan were used to repay AIC’s then existing revolving line of credit balance of ¥300.0 million due in 
June 2010 and the remaining proceeds were used for general corporate purposes.  The line of credit accrued interest at TIBOR 
plus 0.5%.  The term loan was repaid in full in July 2011.  

76

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

In March 2010, AIC entered into a ¥2.5 billion (approximately $28 million at inception) term loan with a Japanese bank due 
September 2012.  Principal amounts borrowed are to be repaid in equal quarterly payments and may be prepaid at any time 
without penalty.  The term loan accrues interest monthly at TIBOR plus 0.8% (1.3% as of December 31, 2011).  The proceeds 
of the term loan were used to repay the ¥2.5 billion revolving line of credit with the same bank due in September 2010, which 
accrued interest at TIBOR plus 0.6%.

In May 2010, Amkor Technology Korea, Inc., a Korean subsidiary (“ATK”) entered into a $180.0 million, three-year secured 
term loan with a Korean bank (the “ATK Loan”), of which $47.0 million was repaid in July 2010 upon conclusion of the tender 
offer for the 2016 Notes described above.  The ATK Loan is guaranteed on an unsecured basis by Amkor and is secured by 
substantially all the land, factories and equipment located at our ATK facilities.  The ATK Loan bears interest at the bank’s 
funding rate-linked base rate plus 1.99% (5.72% as of December 31, 2011) and amortizes in five remaining equal quarterly 
installments of $5.0 million per installment, with the remaining balance of $78.0 million due in May 2013.  Interest is payable 
quarterly in January, April, July and October of each year.

In April 2007, ATK entered into a $300.0 million, seven-year secured term loan (“Term Loan”) with a Korean bank.  The Term 
Loan is guaranteed on an unsecured basis by Amkor.  The Term Loan is secured by substantially all the land, factories and 
equipment located at our ATK facilities.  The Term Loan bears interest at the Korean bank’s base rate plus 50 basis points (5.08% 
as of December 31, 2011) and amortizes in 28 equal quarterly payments through April 2014.  The proceeds of the Term Loan 
were used to refinance our then existing second lien term loan.  In November 2011, the Term Loan was amended to defer until 
maturity the four quarterly payments for 2012 totaling $42.9 million.  All other terms and conditions remain the same.

In July 2011, ATK entered into a $50.0 million three-year secured term loan facility with a Korean bank (the “ATK Loan”).  As 
of December 31, 2011, we had fully drawn on the ATK Loan.  As amended in October 2011, the ATK Loan bears interest at a 
bank base rate plus a spread of 1.06% or 1.16% throughout the three-year term (3.96% as of December 31, 2011).  The ATK 
Loan is due in full upon maturity in July 2014.  The ATK Loan is secured by substantially all of the land, factories and equipment 
located at our ATK facilities.  The proceeds from the term loan funded capital expenditures.

In April 2010, Amkor Technology Taiwan, Inc., a Taiwanese subsidiary (“ATT”), entered into a NT$1.5 billion (approximately 
$47 million at inception) term loan with a Taiwanese bank due April 2015 primarily to fund capital expenditures.  The loan is 
guaranteed on an unsecured basis by Amkor and is collateralized with certain land, buildings, and equipment in Taiwan.  Principal 
payments were due annually in the first year and semiannually thereafter, and interest payments are due monthly.  The term loan 
accrues interest at the 90-day primary commercial paper rate plus 0.835% (2.40% as of December 31, 2011).  In March 2011, 
ATT amended the principal repayment schedule.  As a result, semiannual principal payments of NT$150 million (approximately 
$4.7 million at inception) will begin in April 2012 and the remaining NT$600 million (approximately $18.9 million at inception) 
will be due upon maturity.  In January 2012, ATT converted the existing term loan from a Taiwanese  to a U.S. dollar denominated 
term loan (approximately $50.0 million).  The new facility will bear interest at the Taipei Foreign Exchange six month U.S. 
dollar rate plus 2.0% (3.35% upon conversion).  All other terms and conditions remain the same.   

In September 2011, ATK entered into a $50.0 million four and a half-year secured term loan facility with a Korean bank due in 
March 2016.  As of December 31, 2011, ATK had drawn $12.5 million, with the remainder available to be drawn throughout 
the  four  and  a  half-year  term.    The  loan  bears  interest  at  the  bank  funding  rate-linked  base  rate  plus  1.70%  (5.63%  as  of 
December 31, 2011).  Principal is payable on a quarterly basis for three years after a one and a half year grace period.  The loan 
is secured by substantially all of the land, factories and equipment located at our ATK facilities.  The proceeds from the term 
loan will be used to fund capital expenditures.

Secured Equipment and Property Financing

Our secured equipment and property financing consisted of loans secured with specific assets at our Chinese subsidiary.  In May 
2004, our Chinese subsidiary entered into a $5.5 million credit facility secured with buildings at one of our Chinese production 
facilities that is payable ratably through January 2012.  The interest rate for the Chinese financing at December 31, 2010 was 
5.84%.  The Chinese financing was repaid in full in March 2011.  

77

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Compliance with Debt Covenants

Our secured bank debt agreements and the indentures governing our senior and senior subordinated notes restrict our ability to 
pay dividends.  We were in compliance with all of our covenants as of December 31, 2011, 2010 and 2009.

Maturities

Payments due for the year ending December 31,
2012. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2014. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total debt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

59,395

138,885

378,356

23,972

1,043

745,000
1,346,651

Total Debt

(In thousands)

78

 
 
 
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 $1.9 million in 2011 and 2010 and 
$0.9 million in 2009.

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, $2.0 million and $1.4 million in 2011, 2010 and 2009.

Korean Severance Plan

Our Korean subsidiary participates in an accrued severance plan that covers employees and directors 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.

During 2009, we made a total of $83.5 million in voluntary interim severance payments to eligible employees that have elected 
to receive benefits prior to terminating their employment.

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Gain) loss 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,

2011

2010

2009

(In thousands)

$

88,899

$

69,120

$

132,138

26,705
(6,717)
(2,172)
106,715
(239)
106,476

7,476

23,792
(6,846)
2,833
88,899
(257)
88,642

6,131

$

99,000

$

82,511

$

18,472
(91,413)
9,923
69,120
(260)
68,860

4,466

64,394

In addition to the voluntary severance payments, we completed early voluntary retirement programs at our Korean subsidiary 
in 2010 (see Note 19).

79

 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Foreign Defined Benefit Pension Plans

Our Philippine, Taiwanese and Japanese subsidiaries 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.

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, 2011 and 2010.

Change in projected benefit obligation:

Projected benefit obligation at beginning of year. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service cost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest cost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuarial losses (gains). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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,

2011

2010

(In thousands)

$

72,678

$

58,994

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)

$

$

5,934

3,736
(849)
(160)
—

—

—

5,023

72,678

40,763

4,111

7,856

—
(849)
2,856

54,737
(17,941)

December 31,

2011

2010

(In thousands)

Amounts recognized in the Consolidated Balance Sheets consist of:

Prepaid benefit cost (included in non-current assets) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued benefit liability (included in pension and severance obligations) . . . . . . . . . . . .
Net amount recognized at year end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

—
(30,096)
(30,096)

$

$

3,092
(21,033)
(17,941)

The accumulated benefit obligation as of December 31, 2011 and 2010 was $52.5 million and $48.0 million, respectively.

80

 
 
 
 
 
 
 
 
 
 
 
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, 2009, net of tax ($0.8 million)

$

(78)

$

(In thousands)
(556)

$

(6,346)

$

(6,980)

Initial Net
Obligation

Prior Service
Cost

Actuarial Net
(Loss) Gain

Total

Amortization included in net periodic pension cost,

net of tax (less than $0.1 million) . . . . . . . . . . . . .

Net gain arising during period, net of tax

($0.2 million) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustments to unrealized components of defined

benefit pension plan included in other
comprehensive income, net of tax ($0.2 million)

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)

$

13

—

295

—

27

1,935

335

1,935

13
(65)

$

295
(261)

$

1,962
(4,384)

$

2,270
(4,710)

7

—

255

(25)

65

327

(6,102)

(6,127)

7
(58)

$

230
(31)

$

(6,037)
(10,421)

$

(5,800)
(10,510)

Estimated amortization of cost to be included in 2012

net periodic pension cost. . . . . . . . . . . . . . . . . . . . . . .

$

7

$

337

$

212

$

556

Information for pension plans with benefit obligations in excess of plan assets are as follows:

Plans with underfunded or non-funded projected benefit obligation:

Aggregate projected benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aggregate fair value of plan assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

78,897

$

48,801

Plans with underfunded or non-funded accumulated benefit obligation:

Aggregate accumulated benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aggregate fair value of plan assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22,669
—

28,863

7,830

18,067
—

December 31,

2011

2010

(In thousands)

81

 
 
 
 
 
 
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,

2011

2010

2009

(In thousands)

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 (gain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net periodic pension cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Curtailment loss (gain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settlement loss (gain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total pension expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

5,744

$

5,934

$

3,274
(3,119)
8

269

83

6,259

1,016

565

3,736
(2,336)
13

295

27

7,669

—

—

$

7,840

$

7,669

$

4,381

2,959
(1,350)
64

80
(17)
6,117
(528)
(586)
5,003

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,

2011

2010

2009

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2%

4.2%

4.6%

4.5%

6.4%

6.4%

5.2%

5.7%

4.6%

5.4%

7.9%

6.4%

5.7%

5.9%

5.7%

The measurement date for determining the Plans’ assets and benefit obligations was December 31, each year.  Discount rates 
were generally derived from yield curves constructed from high-quality corporate or foreign government bonds in 2011 and 
foreign government bonds in 2010, 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 Taiwanese defined benefit plans 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 Japanese defined benefit pension plans 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 (primarily Philippines domestic and U.S.) and 25% to 35% 
equities (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 2011 and  $0.7 
million in 2010 and 2009, respectively.

82

 
 
 
 
 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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:

Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)

Significant
Other 
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

(In thousands)

Total

3,242

$

—

$

—

$

3,242

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . .
Equity securities

$

Foreign securities. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
U.S. securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

U.S. fixed income funds . . . . . . . . . . . . . . . . . . . . . . . . . .
Bonds

Foreign government bonds . . . . . . . . . . . . . . . . . . . . .
Foreign treasury notes . . . . . . . . . . . . . . . . . . . . . . . . .

Taiwan retirement fund . . . . . . . . . . . . . . . . . . . . . . . . . .
Other. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

283

4,474

4,757

1,627

2,007

23,485

25,492

7,991

346

—

—

—

—

5,192

—

5,192

—

154

$

43,455

$

5,346

$

—

—

—

—

—

—

—

—

—

—

283

4,474

4,757

1,627

7,199

23,485

30,684

7,991

500

$

48,801

The fair value of our pension plan assets at December 31, 2010, by asset category utilizing the fair value hierarchy as discussed 
in Note 15, is as follows:

Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)

Significant
Other 
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

(In thousands)

Total

859

$

—

$

—

$

859

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . .
Equity securities

$

Foreign securities. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
U.S. securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

U.S. fixed income funds . . . . . . . . . . . . . . . . . . . . . . . . . .
Bonds

Foreign government bonds . . . . . . . . . . . . . . . . . . . . .
Foreign treasury notes . . . . . . . . . . . . . . . . . . . . . . . . .

Taiwan retirement fund . . . . . . . . . . . . . . . . . . . . . . . . . .
Other. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1,022
9,512
10,534

2,014

2,259

24,727

26,986

7,830

183

—
—
—

—

6,054

—

6,054

—

277

$

48,406

$

6,331

$

—
—
—

—

—

—

—

—

—

—

1,022
9,512
10,534

2,014

8,313

24,727

33,040

7,830

460

$

54,737

The Taiwan retirement fund category of our plan assets represents accounts that our Taiwanese subsidiaries 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.

83

 
 
 
 
 
 
 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Our other category of plan assets included receivables and payables at December 31, 2011 and December 31, 2010.  Our other 
category of plan assets also included real estate at December 31, 2010.

We contributed $3.6 million, $7.9 million and $15.4 million to the Plans during 2011, 2010 and 2009, respectively, and we 
expect to contribute $3.2 million during 2012.  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:

2012. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2014. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2017 to 2021 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

2,804

4,160

3,614

3,739

4,201

33,407

14.  Treasury Stock

Stock Repurchase Program

In August 2011, our Board of Directors authorized the repurchase of up to $150.0 million of our common stock, exclusive of 
any fees, commissions or other expenses.  In February 2012, our Board of Directors authorized the repurchase of an additional 
$150.0 million of our common stock, exclusive of any fees, commissions or other expenses.  The purchase of stock under these 
programs 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, 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, 2011, approximately 
$21.1 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 is recorded in accrued expenses.

Shares for Tax Withholding

During the year ended December 31, 2011, we withheld 111,000 shares 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 $0.8 million for the year ended December 31, 2011.  These shares are reflected as treasury stock at cost.

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.

84

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Assets and Liabilities that are Measured at Fair Value on a Recurring Basis

Our financial assets and liabilities recorded at fair value on a recurring basis include cash and cash equivalents and restricted 
cash.  Cash and cash equivalents and current restricted cash 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 and 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 and restricted cash are valued using quoted market prices in 
active markets for identical assets as summarized in the following tables as of December 31, 2011 and 2010:

Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)

December 31, 2011

Significant
Other
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Total

Cash equivalent money market funds . . . . . . . . . . . . . . .
Restricted cash money market funds . . . . . . . . . . . . . . . .

$

$

165,540
2,680

(In thousands)

$

—
—

$

—
—

165,540
2,680

Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)

December 31, 2010

Significant
Other
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Total

Cash equivalent money market funds . . . . . . . . . . . . . . .
Restricted cash money market funds . . . . . . . . . . . . . . . .

$

145,827

$

17,782

(In thousands)

$

—

—

—

—

$

145,827

17,782

Assets and Liabilities that are Measured at Fair Value on a Nonrecurring Basis

We measure certain assets and liabilities, including property, plant and equipment, intangible assets and an equity investment, 
at fair value on a nonrecurring basis.  Such measurements are generally obtained from third party appraisal reports.  Impairment 
losses on property, plant and equipment included in cost of sales were $3.3 million, $1.4 million and $6.0 million in 2011, 2010 
and 2009, respectively.  Impairment losses included in selling, general and administrative expenses were zero in 2011 and 2009 
and $0.6 million in 2010.  Impairment losses included in research and development expenses were zero in 2011 and 2010 and 
$2.6 million in 2009.

Financial Instruments Not Recorded at Fair Value on a Recurring Basis

We measure the fair value of our debt on a quarterly basis for disclosure purposes.  The following table presents the carrying 
amounts and fair values of financial instruments that are not recorded at fair value on a recurring basis as of December 31, 2011 
and 2010:

Carrying value of debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fair value of debt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

1,346,651

1,495,353

$

$

1,364,300

1,806,231

December 31,

2011

2010

(In thousands)

85

 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The estimated fair value of the debt is based primarily on quoted market prices reported on the respective balance sheet dates 
for our senior and senior subordinated notes.  The estimated fair value for the debt of our subsidiaries and the December 2013 
Notes 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 $100.0 million senior secured revolving credit facility that matures in April 2015.  The facility has a letter of credit 
sub-facility of $25.0 million.  As of December 31, 2011, we have $0.3 million of standby letters of credit outstanding and have 
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 currently 
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.  Attorney fees related to legal matters are 
expensed as incurred.  We have not recorded any accrual for contingent liabilities associated with the legal proceedings described 
below, except where noted otherwise, based on our belief that liabilities, while possible, are not probable.  Further, except where 
noted otherwise, any possible range of loss cannot be reasonably estimated at this time.

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 subject matter of the 
arbitration was a license agreement (“License Agreement”) entered into between Tessera and our predecessor in 1996.

On October 27, 2008, the arbitration panel in that proceeding issued an interim order in this matter.  While the panel found that 
most of the packages accused by Tessera were not subject to the patent royalty provisions of the License Agreement, the panel 
did find that past royalties were due to Tessera as damages for some infringing packages.  The panel also denied Tessera’s request 
to terminate the License Agreement.

On January 9, 2009, the panel issued the final damage award in this matter awarding Tessera $60.6 million in damages for past 
royalties due under the License Agreement.  The award was for the period March 2, 2002 through December 1, 2008.  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.

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 “Arbitration”).  We instituted this action in order to obtain declaratory relief confirming that we are a licensee in good 
standing under our 1996 License Agreement with Tessera and that the License Agreement remains in effect.  We also included 
a  claim  seeking  damages  and  injunctive  relief  regarding  Tessera’s  tortious  interference  with  our  contractual  relations  and 
prospective economic advantage, including Tessera’s false and misleading statements questioning our status as a licensee under 
the License Agreement.

86

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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.  Tessera also alleged breach of contract, seeking termination of the License 
Agreement and asserting that Amkor owes 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 previous arbitration.  Tessera has since dropped its claims 
on five of those patents.  Tessera also alleged that Amkor tortiously interfered with Tessera’s prospective business relationships 
and seeks damages.  On February 17, 2011, Tessera sent Amkor a notice of termination of the License Agreement.

We filed our response to Tessera’s answer on January 15, 2010, denying Tessera’s claims and filed a motion with the panel 
seeking priority consideration and phased early determination of issues from the previous arbitration decision, including the 
proper method for calculating royalties under the License Agreement for periods subsequent to December 1, 2008.  On March 28, 
2010, the panel granted our request for priority consideration and phased early determination.

The first hearing regarding the issues from the previous arbitration was held in December 2010, and in July 2011, the panel 
issued its decision in the first phase of the Arbitration.  The panel found that we do 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.  The panel also did not grant Tessera's request to terminate the License Agreement in the first phase 
of the Arbitration and deferred making any determination regarding termination until the full Arbitration is completed.

Our request for a declaration confirming that we are in compliance with the License Agreement and that our royalty calculations 
from the previous 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 Arbitration was approximately $0.5 million, which has 
been fully paid.

The hearing on Tessera’s assertion of infringement on additional patents (now ten U.S. and four foreign patents) and the payment 
of additional royalties under the License Agreement relating to the additional asserted patents was held in August 2011.  Prior 
to the hearing, Tessera and Amkor agreed to dismiss their respective claims for tortious interference.  Post-hearing oral arguments 
were heard in November 2011.  Tessera initially claimed that the amount in dispute in the Arbitration was approximately $100 
million and is now claiming more than $400 million of royalties under the License Agreement for the additional patents.  We 
believe this amount is speculative and strongly dispute these claims.  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.

In connection with the Arbitration, we deposited $17.0 million in an escrow account during 2011 and 2010, which was previously 
classified as restricted cash.  This amount represented our good faith estimate of the disputed amount of royalties that we expected 
Tessera to allege that we owed on packages assembled by us for one of our customers involved in proceedings with Tessera 
before the ITC related to the patents at issue in the prior arbitration.  As a result of the panel's decision in the first phase of the 
Arbitration, the full $17.0 million held in escrow was returned to us in December 2011.

In May 2011, Tessera filed a new request for arbitration against Amkor seeking undisclosed damages and a declaration that the 
License Agreement has been terminated.  Amkor disputes that Tessera has a right to terminate the License Agreement or that 
the License Agreement has been terminated.  We believe that Tessera's claims in this new arbitration are without merit.

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.

87

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

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, the ALJ 
issued a Supplemental Initial Determination. Although the ALJ’s ruling did not disturb the prior finding that Carsem Dual and 
Quad Flat No-Lead Packages infringe some of Amkor’s patent claims relating to MicroLeadFrame technology, the ALJ found 
that some of Amkor’s patent 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 have appealed the ITC's ruling to the U.S. Court of Appeals 
for the Federal Circuit, and oral arguments were heard in November 2011.

Leases

Future minimum lease payments under operating leases that have initial or remaining noncancelable lease terms in excess of 
one year are:

2012. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2014. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2015. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2016. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(In thousands)

$

10,191
7,536

7,031

5,141

827

2,955

$

33,681

Rent expense amounted to $15.1 million, $16.3 million and $18.3 million for 2011, 2010 and 2009, 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.  

88

 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

During 2011, 2010 and 2009, related party inventory purchases from Acqutek were $2.8 million, $10.3 million and $11.4 million, 
respectively.  The related party amount due to Acqutek at December 31, 2010 was $1.2 million.

Mr. JooHo Kim is an employee of Amkor and a brother of Mr. James J. Kim, our Executive Chairman of the Board of Directors.  
We received $0.4 million in services from a company controlled by Mr. JooHo Kim in January and February 2009.

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 will engage with us for both packaging and test services, or just packaging or test 
services.

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,  (2) number  of  electrical  connections,  (3) thermal  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 solutions 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 not specifically allocated to one of our operating segments.

Packaging

Test

Other

Total

(In thousands)

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

218,352

425,878

3,217,308
275,781

83,386

65,719

880,611
101,841

307
(1,028)
149,696
75,367

302,045

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year Ended December 31, 2009

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

1,933,600
184,637

429,295

2,689,005

136,902

$

80,907

79,621

800,125

97,122

245,237
88,558

57,652

753,234

19,393

$

117
(55)
143,221

90,944

272
138
(6,551)
135,116

41,447

$

290,170

663,756

3,961,562

504,463

2,179,109
273,333

480,396

3,577,355

197,742

89

 
 
 
 
 
 
 
 
 
 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

The following table presents net sales by country based on customer location:

Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Singapore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taiwan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other foreign countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total foreign countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2011

Net Sales

2010

(In thousands)

$

340,302

$

455,339

$

539,467

119,334

689,643

1,688,746

1,087,613

643,496

177,505

772,337

2,048,677

890,806

2009

260,500

482,333

138,793

543,658

1,425,284

753,825

$

2,776,359

$

2,939,483

$

2,179,109

In 2011, one customer accounted for 17% of our consolidated net sales, representing approximately 15% of our packaging net 
sales and 30% of our test net sales.  In 2011, another customer accounted for 11% of our consolidated net sales, substantially 
all of which were packaging net sales.  No customer exceeded 10% of consolidated net sales in 2010.  In 2009, one customer 
accounted for 12% of our consolidated net sales, representing approximately 11% of our packaging net sales and 22% of our 
test net sales.

The following table presents property, plant and equipment, net, based on the physical location of the asset:

China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Philippines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taiwan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other foreign countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total foreign countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total property, plant and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Property, Plant and Equipment, Net

2011

2010

(In thousands)

$

321,037

$

265,116

18,729

822,509

213,377

230,975

138

21,365

679,488

231,795

287,439

90

1,606,765

1,485,293

49,449

51,933

$

1,656,214

$

1,537,226

90

 
 
 
 
 
 
AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

19.  Restructuring and Reduction 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.”  “Adjustments” represents revisions of estimates.  “Non-cash Amounts” 
consists of asset impairments and pension plan curtailments and settlements.

Accrual at December 31, 2008 . . . . . . . . . . . . . . . . .
Charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cash Payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-cash Amounts . . . . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . .

North Carolina Manufacturing Operations

Employee
Separation
Costs

Contractual
Obligations

Asset
Impairments

(In thousands)

Other

Total

$

782

$

—

$

—

$

—

$

782

12,273
(10,096)
(135)
1,114
3,938

4,614
(7,882)
—

670

8,326
(7,416)
(1,580)
—

$

$

4,731
(2,543)
(468)
1,093
2,813

41
(2,854)
—

—

—

—

—

—

$

2,290

—

—
(2,290)
—

282

—
(282)
—

—

—

—

—

$

186

—

—
(186)
—

—

—

—

—

—

—

—

—

$

19,480
(12,639)
(603)
(269)
6,751

4,937
(10,736)
(282)
670

8,326
(7,416)
(1,580)
—

During 2007, we commenced a phased transition of all wafer level processing production from our wafer bumping facility in 
North Carolina to our facility in Taiwan.  All wafer level processing production ceased at our North Carolina facility in the three 
months ended June 30, 2009, and the North Carolina facility is now exclusively used for research and development activities.  
We recorded charges for termination benefits during 2009 of $1.2 million, of which $0.9 million and $0.3 million were recorded 
in cost of sales and selling, general and administrative expenses, respectively.  All amounts were paid as of December 31, 2009.

Reduction in Force

During 2011, we reduced our workforce by approximately 1,050 employees at a foreign location.  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 prior to December 31, 2011.

In December 2011, we commenced voluntary employee workforce reductions which we expect to impact employees at another 
foreign location.  For the three months ended March 31, 2012, we estimate that we will incur approximately $6 million in charges 
for special termination benefits.

During 2009, we reduced our workforce by approximately 1,750 employees at certain foreign locations.  We recorded $6.3 
million in charges for one-time and contractual termination benefits, net of a pension curtailment gain, of which $5.8 million 
and $0.5 million were charged to cost of sales and selling, general and administrative expenses, respectively.  All amounts were 
paid prior to March 31, 2009.

91

AMKOR TECHNOLOGY, INC.

Notes to Consolidated Financial Statements — (Continued)

Singapore Manufacturing Operations

In June 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.  
The gain on the sale of the facility was not significant and had no net tax effect.

The liability for one-time involuntary termination benefits for employees that provided services beyond the minimum retention 
period was recognized over the service period.  During 2010 and 2009, we recorded charges for termination benefits of $2.6 
million and $4.8 million, of which $1.9 million and $3.4 million were recorded in cost of sales, and $0.7 million and $1.3 million 
were recorded in selling, general and administrative expenses, respectively.  In 2009, $0.1 million was recorded in research and 
development expenses.

Contractual obligation costs, asset impairments and other costs were included in costs of goods sold.  During 2009, we recorded 
a charge of $4.7 million representing the expected costs associated with the termination of our lease of one of our facilities that 
was vacated.  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 existing $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 and $2.3 million in 2009 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.

Early Retirement Program

In October 2010, our Korean subsidiary 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 was recorded in cost of sales, $0.2 million 
was recorded in selling, general and administrative expenses and $0.1 million was recorded in research and development expenses.  
All amounts accrued at December 31, 2010 were classified in current liabilities.  All amounts were paid as of December 31, 
2011.

92

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, 2009 . . . . . . . . . . . . . . . .
Year ended December 31, 2010 . . . . . . . . . . . . . . . .
Year ended December 31, 2011 . . . . . . . . . . . . . . . .

$

261,613
208,925
223,612

(28,056)
15,009
(509)

(25,666)
(5)
(8,163)

$

1,034
(317)
(671)

208,925
223,612
214,269

(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.

93

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.  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, 2011 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, 
2011 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, 2011 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,  2011  has  been  audited  by 
PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears under 
Item 8.

94

Changes in Internal Control Over Financial Reporting

As previously reported, we are implementing a new enterprise resource planning (“ERP”) system over a multi-year program on 
a company-wide basis.  During the three months ended September 30, 2011, 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 represents a change in our internal control over financial reporting.  During the three months ended December 31, 
2011, 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 “Compliance with Section 16(a) of the Securities Exchange Act of 1934” in our definitive proxy statement (to 
be filed pursuant to Regulation 14A) for our 2012 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).

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 on Executive Compensation” in our definitive proxy statement (to be filed pursuant to Regulation 14A) for our 2012 
Annual Meeting of Stockholders.

95

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 2012 Annual 
Meeting of Stockholders.

EQUITY COMPENSATION PLANS

The following table summarizes our equity compensation plans as of December 31, 2011:

(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 . . . . . . . . . . . . . . . . . . . . . . . . .

6,024

$

28
6,052

9.94

17.06

14,996

444
15,440

(1)  As of December 31, 2011, a total of 15.0 million shares were reserved for issuance under the 2007 Equity Incentive Plan.  
Shares available for issuance under our 2007 Equity Incentive 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, 2011, 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, 2012, 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 2012 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 2012 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.

96

 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, 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: February 23, 2012

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, 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

February 23, 2012

Executive Vice President and Chief Financial Officer

February 23, 2012

Executive Chairman

February 23, 2012

Director

February 23, 2012

Director

February 23, 2012

Director

February 23, 2012

97

Name

/s/  John F. Osborne

John F. Osborne

Dean Park

/s/  James W. Zug

James W. Zug

Title

Director

Director

Date

February 23, 2012

Director

February 23, 2012

98

EXHIBIT INDEX

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.(5)

Certificate of Incorporation.(1)

Certificate of Correction to Certificate of Incorporation.(3)

Restated Bylaws.(14)

Specimen Common Stock Certificate.(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.(11)

Form of Note for the 6.00% Convertible Senior Subordinated Notes due 2014.(11)

Letter Agreement, dated March 26, 2009, between Amkor Technology, Inc., James J. Kim and 915 Investments, 
LP.(11)

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.(15)

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.(15)

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.(19)

Registration Rights Agreement, dated May 20, 2011, by and among Amkor Technology, Inc. and Deutsche 
Bank Securities Inc. and Citigroup Global Markets Inc.(19)

Letter Agreement, dated May 17, 2011, between Amkor Technology, Inc., James J. Kim and 915 Investments, 
LP.(19)

Form of Indemnification Agreement for directors and officers.(2)

1998 Stock Plan, as amended.(10)*

Form of Stock Option Agreement under the 1998 Stock Plan.(6)*

Contract of Lease between Corinthian Commercial Corporation and Amkor/Anam Pilipinas Inc., dated October 
1, 1990.(1)

Contract of Lease between Salcedo Sunvar Realty Corporation and Automated Microelectronics, Inc., dated 
May 6, 1994.(1)

Lease  Contract  between  AAPI  Realty  Corporation  and  Amkor/Anam  Advanced  Packaging,  Inc.,  dated 
November 6, 1996.(1)

1998 Director Option Plan and form of agreement thereunder.(2)*

2003 Nonstatutory Inducement Grant Stock Plan, as amended.(10)*

2007 Equity Incentive Plan.(8)*

2.1

3.1

3.2

3.3

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

10.1

10.2
10.3

10.4

10.5

10.6

10.7

10.8

10.9

10.10

Form of Stock Option Agreement under the 2007 Equity Incentive Plan.(9)*

10.11

Form of Restricted Stock Award Agreement under the 2007 Equity Incentive Plan.(16)*

10.12

2007 Executive Incentive Bonus Plan.(8)*

10.13

Credit Facility Agreement, dated March 30, 2007, between Woori Bank and Amkor Technology Korea, Inc.
(7)

10.14

Additional Agreement, dated March 30, 2007, between Woori Bank and Amkor Technology Korea, Inc.(7)

10.15

10.16

General Terms and Conditions for Bank Credit Transactions, dated March 30, 2007, between Woori Bank and 
Amkor Technology Korea, Inc.(7)

Kun-Mortgage Agreement, dated March 30, 2007, between Woori Bank and Amkor Technology Korea, Inc.
(7)

10.17

Kun-Guarantee, dated March 30, 2007, delivered by Amkor Technology, Inc. to Woori Bank.(7)

99

10.18

10.19

10.20

10.21

10.22

Voting Agreement, by and among Amkor Technology, Inc. and the Investors named therein, dated November 
18, 2005.(6)

Working Capital Facility Agreement, dated January 20, 2009, between China Construction Bank Co., Ltd. And 
Amkor Assembly and Test (Shanghai) Co., Ltd.(13)

Real Property Mortgage Agreement, dated January 20, 2009, between China Construction Bank Co., Ltd. and 
Amkor Assembly and Test (Shanghai) Co., Ltd.(13)

2009 Voting Agreement, dated as of March 26, 2009, between Amkor Technology, Inc., James J. Kim and 915 
Investments, LP.(11)

Amended and Restated Loan and Security Agreement, dated as of April 16, 2009, 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.(12)

10.23

Credit Facility Agreement, dated May 24, 2010, by and between Amkor Technology Korea, Inc. and Woori 
Bank.(17)

10.24

Additional Agreement, dated May 24, 2010, between Woori Bank and Amkor Technology Korea, Inc.(17)

10.25

10.26

General Terms and Conditions for Bank Credit Transactions, dated May 24, 2010, between Woori Bank and 
Amkor Technology Korea, Inc.(17)

Amendment to Kun-Mortgage Agreement, dated May 24, 2010, by and between Amkor Technology Korea, 
Inc. and Woori Bank.(17)

10.27

Kun-Guarantee, dated May 24, 2010, by and between Amkor Technology, Inc. and Woori Bank.(17)

10.28

First Amendment to Amended and Restated Loan and Security Agreement, dated as of September 10, 2010, 
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.(18)

10.29

Severance Agreement and Release, dated May 23, 2011, by and between James Fusaro and Amkor Technology, 
Inc.(20)*

12.1

21.1

23.1

31.1

31.2

32.1

Computation of Ratio of Earnings to Fixed Charges

List of subsidiaries of the Registrant.

Consent of PricewaterhouseCoopers LLP.

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.

Certification of Joanne Solomon, Chief Financial Officer of Amkor Technology, Inc., Pursuant to Rule 13a-14
(a) under the Securities Exchange Act of 1934.

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.

**

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, and otherwise is not subject to liability under these sections.

_______________________________________

100

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

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 Current Report on Form 8-K filed on September 3, 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 Current Report on Form 8-K filed August 10, 2007.

Incorporated by reference to the Company’s Quarterly Report on Form 10-Q filed May 5, 2008.

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 Current Report on Form 8-K filed on April 16, 2009.

Incorporated by reference to the Company's Current Report on Form 8-K 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 Quarterly Report on Form 10-Q 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 September 10, 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.

101

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SERVING INDUSTRY FOR OVER 40 YEARS

Corporate Information

Amkor is one of the world’s largest providers of contract semiconductor assembly and test services.  

Founded  in  1968,  Amkor  pioneered  the  concept  of  having  a  highly  focused  third  party  provide 

assembly and test to semiconductor manufacturers.  By capitalizing on strong outsourcing trends 

and  consistently  meeting  customer  needs,  Amkor  has  enjoyed  significant  growth  over  its  40-year 

history.    

Today  we  are  a  strategic  manufacturing  partner  for  many  of  the  world’s  leading  semiconductor 

companies and electronics OEMs, providing our customers with a broad array of package design, 

assembly and test solutions.  Amkor’s operational base encompasses more than 5 million square feet 

of manufacturing facilities, product development centers, and sales and support offices located in 

key electronics manufacturing regions in Asia, Europe and the United States.

Semiconductor manufacturing is generally defined in two stages.  In the first stage, called the “front 

end”,  complex  electronic  circuitry  is  deposited  onto  silicon  wafers  through  a  process  called  wafer 

fabrication.  In the “back end”, also known as packaging (or assembly) and test, the silicon wafer 

is cut into individual chips, and each chip is placed in a protective housing that provides a proper 

electrical connection between the chip and the system board.  For most advanced semiconductor 

devices, these packages are custom designed for specific applications.  The packages are then tested 

to ensure that they meet appropriate performance criteria.

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 – approximately 225 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
Venture Partner
SCP Partners

Winston J. Churchill 3 
Chair: Nominating and Governance 
Committee 
Managing General Partner,
SCP Partners and Chairman, CIP 
Capital Management, Inc.

John T. Kim
Director

John F. Osborne 1, 2
Chair: Compensation Committee
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 Management

Corporate Headquarters

Kenneth T. Joyce
President 
and Chief Executive Officer

JooHo Kim
President, Amkor Technology
Korea and
Executive Vice President 
Worldwide Manufacturing Operations

Michael J. Lamble
Executive Vice President
Worldwide Sales and
Product Management

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
Tel: 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

Amkor Technology, the Amkor Technology logo, and the phrase Enabling a Microelectronic World 
are trademarks of Amkor Technology, Inc. 

Please visit our web site: www.amkor.com

Please visit our website: 
www.amkor.com

 
 
 
 
 
2o11 REPORT

annual

www.amkor.com

ENABLING A MICROELECTRONIC WORLD®