SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 11-K

(Mark One)

þ		ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2006

o		TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

COMMISSION FILE NUMBER: 000-29472

A. Full title of the plan and the address of the plan, if different from that
of the issuer named below:

AMKOR TECHNOLOGY, INC. 401(k) PLAN

B. Name of issuer of the securities held pursuant to the plan and the address
of its principal executive office:

 

 

AMKOR TECHNOLOGY, INC. 401(k) PLAN

Financial Statements and Supplemental Schedule
for the years ended December 31, 2006 and 2005

INDEX

Report of Independent Registered Public Accounting Firm			1
Financial Statements:
Statement of Net Assets Available for Benefits as of December 31, 2006 and 2005			2
Statement of Changes in Net Assets Available for Benefits for the years ended December 31, 2006 and 2005			3
Notes to Financial Statements			4
Supplemental Schedule:
Schedule H, line 4i – Schedule of Assets (Held at End of Year) as of December 31, 2006			9
Signature
EX-23.1

Exhibit 23-Consent of Independent Registered Public Accounting Firm

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Participants and Administrator of Amkor Technology, Inc. 401(k) Plan:

In our opinion, the accompanying statements of net assets available for benefits and the related statements of changes in net assets available for benefits present fairly, in all material respects, the net assets available for benefits of Amkor Technology, Inc. 401(k) Plan (the “Plan”) at December 31, 2006 and 2005, and the changes in net assets available for benefits for the year ended December 31, 2006 in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes 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. We believe that our audits provide a reasonable basis for our opinion.

Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedule of assets (held at year end) as of December 31, 2006 is presented for the purpose of additional analysis and is not a required part of the basic financial statements but are supplementary information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This supplemental schedule is the responsibility of the Plan’s management. The supplemental schedule has been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole.

/s/ PricewaterhouseCoopers LLP

Phoenix, Arizona
June 27, 2007

AMKOR TECHNOLOGY, INC. 401(K) PLAN

		2006				2005
Assets
Investments at fair value:
Amkor Tech Stock Fund		$	5,697,886			$	5,625,263
Shares of registered investment companies			56,234,519				44,851,949
Common/collective trust			4,711,169				2,865,800
Loans receivable — participants			464,266				577,845
Total investments			67,107,840				53,920,857
Employer contribution receivable			216,337				—
Total assets			67,324,177				53,920,857
Liabilities — accrued administrative expenses			5,880				8,686
Net assets available for benefits at fair value			67,318,297				53,912,171
Adjustment from fair value to contract value for common/collective trust			45,174				38,721
Net assets available for benefits		$	67,363,471			$	53,950,892

The accompanying notes are an integral part of these financial statements.

AMKOR TECHNOLOGY, INC. 401(K) PLAN

		2006				2005
ADDITIONS:
Investment income:
Interest and dividends		$	2,597,080			$	1,822,291
Net appreciation in fair value of investments			8,601,887				1,884,224
Interest on participant loans			29,145				39,917
			11,228,112				3,746,432
Contributions:
Participants			4,323,251				4,752,916
Employer			2,281,107				2,229,139
Rollovers from other plans			721,325				543,357
Other additions			3,261				1,277
			7,328,944				7,526,689
Total additions			18,557,056				11,273,121
DEDUCTIONS:
Benefits paid to participants			(5,112,088	)			(4,616,197	)
Administrative expenses			(32,389	)			(28,479	)
Assets transferred out to other plans			—				(3,788,808	)
Total deductions			(5,144,477	)			(8,433,484	)
Net increase			13,412,579				2,839,637
Net assets available for benefits:
Beginning of year			53,950,892				51,111,255
End of year		$	67,363,471			$	53,950,892

The accompanying notes are an integral part of these financial statements.

AMKOR TECHNOLOGY, INC. 401(K) PLAN

1. DESCRIPTION OF THE PLAN

The following description of the Amkor Technology, Inc. 401(k) Plan (the “Plan”) provides only general information. Participants should refer to the Plan document for a more complete description of the Plan’s provisions.

General

The Plan is a defined contribution plan covering substantially all employees of Amkor Technology, Inc. (the “Employer” or “Company”) on the first day of the month following date of hire. The Plan is intended to comply with the applicable requirements of the Internal Revenue Code of 1986, as amended (the “IRC”) and the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”).

Administration

Under ERISA, the Employer is the designated administrator of the Plan and has exclusive authority and responsibility for all matters in connection with the operation and administration of the Plan (excluding the authority and responsibility to invest, manage and control the assets of the Plan specifically allocated to the trustee). The Employer has contracted with The Vanguard Group (“Vanguard”) and its affiliates to maintain participants’ Plan accounts and to provide certain other recordkeeping and administrative services for the Plan. Vanguard also serves as the Plan’s trustee.

The Employer has paid certain expenses incurred in the administration of the Plan. Such expenses are primarily comprised of legal, accounting and auditing fees.

Employee Contributions

Participants may elect to defer up to 60% of their eligible compensation (as defined in the Plan) each year, subject to IRC limits. Participants may also contribute amounts representing eligible distributions from other qualified plans.

Each year, the Employer contributes non-discretionary matching deferral contributions in an amount equal to 75% of each participant’s deferral contributions to the Plan, not to exceed $6,000. Plan participants must complete one year of service to be eligible for Employer matching contributions. The Employer may also make annual discretionary matching contributions.

Salary deferral agreements shall be made, terminated, or changed according to procedures and limitations set up by the Plan administrator and the Plan document. Participants currently entitled to receive retirement benefits from another qualified retirement plan may elect to transfer that benefit into a rollover contribution amount under the Plan. Participants may designate the percentage of their total contribution, including the Company’s matching portion, to be invested in any of the funds in which the Plan invests. Participants can change investment elections and contributions percentages at any time.

Participant Accounts

Each participant’s account is credited with the participant’s contributions, any qualified rollover contributions and Employer matching contributions and an allocation of Plan earnings or losses and administrative expenses, if applicable. Allocations of Plan earnings or losses are based on participant account balances. The benefit to which a participant is entitled is the balance of the participant’s vested account.

Withdrawals

While employed with the Company, participants must reach the age of 59¹/2 to withdraw Employer matching contributions. Participant contributions may be withdrawn at age 59¹/2; earlier withdrawals will be subject to an additional 10% tax unless such withdrawals are made due to death, disability, severance of employment after age 55, or a financial hardship as determined by the Plan.

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Vesting

Participants are immediately vested in their contributions plus actual earnings (if any) thereon. Vesting in Employer matching contributions plus actual earnings (if any) thereon is based on participants’ years of credited service. A participant is 34% vested after one year of credited service, 67% vested after two years of credited service and 100% vested after three years of credited service.

Active participants will become fully vested in Employer matching contributions if they reach normal retirement age (age 59), become disabled (as defined in the plan), or die.

Forfeitures

Forfeitures occur when a participant who is not 100% vested in Employer contributions elects to withdraw from the Plan. At December 31, 2006 and 2005, forfeited nonvested accounts totaled $78,142 and $33,020, respectively, and are available to reduce the future Employer matching contributions or pay administrative expenses. In 2006, the Employer did not use any of the forfeited nonvested accounts to reduce its matching contributions and used $29,511 of the forfeited nonvested accounts to pay administrative expenses. In 2005, the Employer used $88,329 of forfeited nonvested accounts to reduce its matching contributions and used $19,029 of forfeited nonvested accounts to pay administrative expenses.

Contributions

Participant contributions are recognized in the period during which the Employer makes the respective payroll deduction. Employer contributions are recognized as matched by the Employer with the employee contributions.

Rollovers

Participants are allowed to rollover balances from other qualified plans into the Plan.

Payment of Benefits

On termination of service, a participant may generally elect to leave his or her account balance in the Plan, or receive a lump-sum distribution of his or her vested account balance. If a terminated participant’s vested account balance is between $1,001 and $5,000 the sum is a rolled into a Vanguard IRA. If the terminated participant’s vested account balance is less than $1,000, a lump sum distribution of the participant’s vested account balance will automatically be made.

Investment Options

Assets of the Plan are held by Vanguard and are invested in the investment options available under the Plan based on instructions received from participants. The Plan offers a number of options for the investment of participants’ Plan accounts, including various mutual funds, a common/collective trust, and an employer common stock fund.

Administrative Expenses

Administrative expenses are payable from Plan assets unless paid by the Employer, as provided by the Plan document. During 2006 and 2005, administrative expenses incurred by the Plan amounted to $32,389 and $28,479, respectively, while those paid by the employer amounted to $41,000 and $38,500, respectively.

Assets Transferred Out To Other Plans

During 2005, Amkor sold its Wichita, Kansas based Test Services business to Integra Technologies, LLC (“Integra”). After the sale, Plan assets totaling $3,788,808 applicable to the affected employees were transferred to a new plan established by Integra.

2. SUMMARY OF ACCOUNTING POLICIES

Basis of Presentation

The financial statements of the Plan are presented on the accrual basis of accounting in accordance with general accepted accounting principles.

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*		Investment is under 5% of the Plan’s net assets for respective year.

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*		Represents a party-in-interest for which a statutory exemption exists.
**		All investments are participant directed therefore disclosure of cost is not required.
***		Under ERISA, an asset held for investment purposes is any asset held by the Plan on the last business day of the Plan’s fiscal year or acquired at any time during the Plan fiscal year and disposed of at any time before the last day of the Plan’s fiscal year, with certain exceptions.

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