Exhibit 5.1

                        [Letterhead of Perkins Coie LLP]

                                August 19, 2003


Amkor Technology, Inc.
1345 Enterprise Drive
West Chester, PA  19380

      RE:   EXCHANGE OFFER RELATING TO 7.75% SENIOR NOTES DUE 2013

Ladies and Gentlemen:

      We have acted as counsel to you in connection with certain proceedings
related to the offer by Amkor Technology, Inc., a Delaware corporation (the
"Company"), to exchange its 7.75% Senior Notes Due 2013 (the "Exchange Notes"),
which are being registered under the Securities Act of 1933, as amended (the
"Act"), pursuant to a Registration Statement on Form S-4 (the "Registration
Statement"), for an equal principal amount at maturity of its outstanding 7.75%
Senior Notes Due 2013 (the "Original Notes"). Capitalized terms used but not
defined herein shall have the meanings assigned thereto in the Registration
Statement.

      In the course of our representation as described above, we have examined,
among other things, the Indenture dated as of May 8, 2003 (the "Indenture"),
between the Company and U.S. Bank National Association, as trustee (the
"Trustee"). We have also examined originals or photocopies, certified or
otherwise identified to our satisfaction, of all such corporate books and
records of the Company and such other documents, records, certificates or other
instruments as we have deemed relevant and necessary as a basis for the opinions
hereinafter set forth.

      Based on the foregoing, and subject to the assumptions, limitations and
qualifications set forth herein, we are of the opinion that when (i) the
Registration Statement has become effective under the Act and the Indenture has
been qualified under the Trust Indenture Act of 1939, as amended, and (ii) the
Exchange Notes have been duly executed, authenticated and delivered in
accordance with the provisions of the Indenture and issued in exchange for
Original Notes pursuant to, and accordance with the terms of, the Exchange Offer
as contemplated in the Registration Statement, the Exchange Notes will
constitute legal, valid and binding obligations of the

Amkor Technology, Inc.
August 19, 2003
Page 2

Company, enforceable against the Company in accordance with their terms, except
as such enforceability is subject to the effect of (a) bankruptcy, insolvency,
reorganization, moratorium, fraudulent conveyance or other laws relating to or
affecting creditors' rights generally (b) general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity or at law) and (c) public policy limitations on rights to indemnification
or contribution.

      To the extent relevant to the opinions set forth above, we have assumed
that the Trustee is duly organized, validly existing and in good standing under
the laws of its jurisdiction of organization; that the Trustee is duly qualified
to engage in the activities contemplated by the Indenture and is duly qualified
and eligible under the terms of the Indenture to act as trustee thereunder; that
the Indenture was duly authorized, executed and delivered by the Trustee; that
the Indenture is a valid and binding obligation of the Trustee; that the Trustee
is in compliance, generally with respect to acting as a trustee under the
Indenture, with all applicable laws and regulations; and that the Trustee has
the requisite organizational and legal power and authority to perform its
obligations under the Indenture.

      Members of our firm are admitted to the bars of the State of California
and the State of New York, and we do not express any opinion as to the laws of
any jurisdiction other than the laws of the State of California and the State of
New York, the General Corporation Law of the State of Delaware and the federal
laws of the United States, and we express no opinion with respect to the
applicability thereto, or the effect thereon, of the laws of any other
jurisdiction. Moreover, we express no opinion with respect to compliance with
state securities laws or as to the applicability to the obligations of the
Company under the Indentures or the New Notes of Sections 547 and 548 of Title
11 of the United States Code or applicable state law (including,

Amkor Technology, Inc.
August 19, 2003
Page 3

without limitation, Article 10 of the New York Debtor & Creditor Law and
Sections 3439 et seq. of the California Civil Code) relating to fraudulent
transfers.

      We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to us under the heading "Legal
Matters." In giving such consent, we do not thereby admit that we are in the
category of persons whose consent is required under Section 7 of the Act.

                                               Very truly yours,



                                               /s/  Perkins Coie LLP