<PAGE>
                                                                    Exhibit 25.1
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                           --------------------------

                                   FORM T-1/A

                                (AMENDMENT NO. 1)

                         STATEMENT OF ELIGIBILITY UNDER

                      THE TRUST INDENTURE ACT OF 1939 OF A

                    CORPORATION DESIGNATED TO ACT AS TRUSTEE
               Check if an Application to Determine Eligibility of
                     a Trustee Pursuant to Section 305(b)(2)
             -------------------------------------------------------

                         U.S. BANK NATIONAL ASSOCIATION
               (Exact name of Trustee as specified in its charter)

                                   31-0841368
                       I.R.S. Employer Identification No.

         180 East Fifth Street
          St. Paul, Minnesota                             55101
(Address of principal executive offices)               (Zip Code)

                         U.S. Bank National Association
                               One Federal Street
                                Boston, MA 02110
                                 (617) 603-6560

            (Name, address and telephone number of agent for service)

                             AMKOR TECHNOLOGY, INC.
                     (Issuer with respect to the Securities)

                DELAWARE                               23-1722724
    (State or other jurisdiction of       (I.R.S. Employer Identification No.)
     incorporation or organization)

          1345 ENTERPRISE DRIVE
            WEST CHESTER, PA                              19380
(Address of Principal Executive Offices)               (Zip Code)


                           7.75% SENIOR NOTES DUE 2013
                       (TITLE OF THE INDENTURE SECURITIES)

================================================================================
<PAGE>
                                    FORM T-1

ITEM 1.  GENERAL INFORMATION.  Furnish the following information as to the
         Trustee.

         a)   Name and address of each examining or supervising authority
              to which it is subject.

              Comptroller of the Currency Washington, D.C.

         b) Whether it is authorized to exercise corporate trust powers.

              Yes

ITEM 2.  AFFILIATIONS WITH OBLIGOR.  If the obligor is an affiliate of the
         Trustee, describe each such affiliation.

              None

ITEMS 3-15 Items 3-15 are not applicable because to the best of the Trustee's
           knowledge, the obligor is not in default under any Indenture for
           which the Trustee acts as Trustee.

ITEM 16. LIST OF EXHIBITS: List below all exhibits filed as a part of this
         statement of eligibility and qualification.

         1. A copy of the Articles of Association of the Trustee.*

         2. A copy of the certificate of authority of the Trustee to commence
            business.*

         3. A copy of the certificate of authority of the Trustee to exercise
            corporate trust powers.*

         4. A copy of the existing bylaws of the Trustee.*

         5. A copy of each Indenture referred to in Item 4.  Not applicable.

         6. The consent of the Trustee required by Section 321(b) of the Trust
            Indenture Act of 1939, attached as Exhibit 6.

         7. Report of Condition of the Trustee as of MARCH 31, 2003, published
            pursuant to law or the requirements of its supervising or examining
            authority, attached as Exhibit 7.

     * Incorporated by reference to Registration Number 333-67188 filed on
     November 16, 2001.


                                        2
<PAGE>
                                      NOTE

      The answers to this statement insofar as such answers relate to what
persons have been underwriters for any securities of the obligors within three
years prior to the date of filing this statement, or what persons are owners of
10% or more of the voting securities of the obligors, or affiliates, are based
upon information furnished to the Trustee by the obligors. While the Trustee has
no reason to doubt the accuracy of any such information, it cannot accept any
responsibility therefor.

                                    SIGNATURE

      Pursuant to the requirements of the Trust Indenture Act of 1939, as
amended, the Trustee, U.S. BANK NATIONAL ASSOCIATION, a national banking
association organized and existing under the laws of the United States of
America, has duly caused this statement of eligibility and qualification to be
signed on its behalf by the undersigned, thereunto duly authorized, all in the
City of Boston, Commonwealth of Massachusetts on the 8TH DAY OF AUGUST 2003.

                              U.S. BANK NATIONAL ASSOCIATION

                              By: /s/ SUSAN FREEDMAN
                                 ------------------------
                                  SUSAN FREEDMAN
                                  VICE PRESIDENT

By: /s/ MARIE A. HATTINGER
   ------------------------------
      MARIE A. HATTINGER
      VICE PRESIDENT


                                        3
<PAGE>
                                    EXHIBIT 6

                                     CONSENT

      In accordance with Section 321(b) of the Trust Indenture Act of 1939, the
undersigned, U.S. BANK NATIONAL ASSOCIATION hereby consents that reports of
examination of the undersigned by Federal, State, Territorial or District
authorities may be furnished by such authorities to the Securities and Exchange
Commission upon its request therefor.

Dated: August 8, 2003


                              U.S. BANK NATIONAL ASSOCIATION

                              By: /s/ SUSAN FREEDMAN
                                 ------------------------
                                  SUSAN FREEDMAN
                                  VICE PRESIDENT

By: /s/ MARIE HATTINGER
   ------------------------------
      MARIE HATTINGER
      VICE PRESIDENT


                                        4
<PAGE>
                                    EXHIBIT 7
                         U.S. BANK NATIONAL ASSOCIATION
                        STATEMENT OF FINANCIAL CONDITION
                                 AS OF 3/31/2003

                                    ($000'S)


<TABLE>
<CAPTION>
                                                                  3/31/2003
                                                                ------------
ASSETS
<S>                                                             <C>
   Cash and Due From Depository Institutions                    $  9,084,839
   Federal Reserve Stock                                                   0
   Securities                                                     30,038,992
   Federal Funds                                                     833,567
   Loans & Lease Financing Receivables                           112,792,313
   Fixed Assets                                                    1,462,006
   Intangible Assets                                               9,080,815
   Other Assets                                                   10,317,239
                                                                ------------
      TOTAL ASSETS                                              $173,609,771

LIABILITIES
   Deposits                                                     $121,508,878
   Fed Funds                                                       3,820,981
   Treasury Demand Notes                                                   0
   Trading Liabilities                                               454,575
   Other Borrowed Money                                           21,082,000
   Acceptances                                                       139,821
   Subordinated Notes and Debentures                               5,694,952
   Other Liabilities                                               5,164,656
                                                                ------------
   TOTAL LIABILITIES                                            $157,865,863

EQUITY

   Minority Interest in Subsidiaries                            $    993,907
   Common and Preferred Stock                                         18,200
   Surplus                                                        11,015,123
   Undivided Profits                                               7,438,448
                                                                ------------
      TOTAL EQUITY CAPITAL                                      $ 19,465,678

TOTAL LIABILITIES AND EQUITY CAPITAL                            $177,331,541
</TABLE>

--------------------------------------------------------------------------------
To the best of the undersigned's determination, as of the date hereof, the above
financial information is true and correct.

U.S. BANK NATIONAL ASSOCIATION


                                        5

