EXHIBIT 24.5

LIMITED POWER OF ATTORNEY

       Know all by these presents, that the undersigned hereby makes, constitutes and appoints Jerry Allison,
Gil C. Tily and Christie B. Tillapaugh (any of whom may act individually) as the true and lawful attorney-
in-fact of the undersigned, with full power and authority as hereinafter described on behalf of and in the
name, place and stead of the undersigned to:

(1)    prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5 (including any amendments thereto)
and any Schedule 13D (including any amendments thereto) with respect to the securities of Amkor Technology,
Inc., a Delaware corporation (the "Company"), with the United States Securities and Exchange Commission, any
national securities exchanges and the Company, as considered necessary or advisable under Section 16(a) of
the Securities Exchange Act of 1934 and the rules and regulations promulgated thereunder, as amended from
time to time (the "Exchange Act"), including obtaining any filing codes or reissuance of existing codes, if
necessary, in connection therewith;

(2)    seek or obtain, as the undersigned's representative and on the undersigned's behalf, information on
transactions in the Company's securities from any third party, including brokers, employee benefit plan
administrators and trustees, and the undersigned hereby authorizes any such person to release any such
information to such attorney-in-fact and approves and ratifies any such release of information; and

(3)    perform any and all other acts which in the discretion of such attorney-in-fact are necessary or
desirable for and on behalf of the undersigned in connection with the foregoing.

The undersigned acknowledges that:

(1)    this Power of Attorney authorizes, but does not require, such attorney-in-fact to act in their
discretion on information provided to such attorney-in-fact without independent verification of such
information;

(2)    any documents prepared and/or executed by such attorney-in-fact on behalf of the undersigned pursuant
to this Power of Attorney will be in such form and will contain such information and disclosure as such
attorney-in-fact, in his or her discretion, deems necessary or desirable;

(3)    neither the Company nor such attorney-in-fact assumes (i) any liability for the undersigned's
responsibility to comply with the requirements of the Exchange Act, (ii) any liability of the undersigned for
any failure to comply with such requirements, or (iii) any obligation or liability of the undersigned for
profit disgorgement under Section 16(b) of the Exchange Act; and

(4)    this Power of Attorney does not relieve the undersigned from responsibility for compliance with the
undersigned's obligations under the Exchange Act, including without limitation the reporting requirements
under Section 16 of the Exchange Act.

(5)    this Power of Attorney supersedes and replaces any prior power of attorney executed by the undersigned
for this purpose.

       The undersigned hereby gives and grants the foregoing attorney-in-fact full power and authority to do
and perform all and every act and thing whatsoever requisite, necessary or appropriate to be done in and about
the foregoing matters as fully to all intents and purposes as the undersigned might or could do if present,
hereby ratifying all that such attorney-in-fact shall lawfully do or cause to be done of, for and on behalf of
the undersigned by virtue of this Limited Power of Attorney.

       This Power of Attorney shall remain in full force and effect until revoked by the undersigned in a
signed writing delivered to such attorney-in-fact.

       IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 6th day
of January, 2010.


Signature below:

Irrevocable Deed of Trust of James J. Kim for Jacqueline Mary Panichello dated 10/3/94
Irrevocable Deed of Trust of James J. Kim for Alexandra Kim Panichello dated 12/24/92
Irrevocable Deed of Trust of James J. Kim for Dylan James Panichello dated 10/15/01
Irrevocable Deed of Trust of James J. Kim for Allyson Lee Kim dated 10/15/01
Irrevocable Deed of Trust of James J. Kim FBO Jason Lee Kim dated 11/17/03
Irrevocable Deed of Trust of James J. Kim f/b/o Children of David D. Kim dated 11/11/05

       By:  Signed Copy on File

            John T. Kim, as Trustee of each of the trusts listed above.