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                                                                    Exhibit 25.1


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549
                           --------------------------

                                    FORM T-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) _______
                           --------------------------

                 UNITED STATES TRUST COMPANY OF NEW YORK (Exact
                  name of trustee as specified in its charter)

              New York                                          13-3818954
   (Jurisdiction of incorporation                           (I. R. S. Employer
    if not a U. S. national bank)                           Identification No.)

        114 West 47th Street                                    10036-1532
         New York, New York                                     (Zip Code)
        (Address of principal
         executive offices)

                           --------------------------
                                   MCMS, Inc.
               (Exact name of OBLIGOR as specified in its charter)

                     Idaho                                      82-0450118
        (State or other jurisdiction of                     (I. R. S. Employer
        incorporation or organization)                      Identification No.)

              16399 Franklin Road                                  83687
                   Nampa, ID                                    (Zip code)
   (Address of principal executive offices)

                           --------------------------
               Series B 9-3/4% Senior Subordinated Notes Due 2008
                Series B Floating Interest Rate Subordinated Term
                               Securities Due 2008
                12-1/2% Subordinated Exchange Debentures Due 2010
                       (Title of the indenture securities)
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                                    GENERAL


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.

             Federal Reserve Bank of New York (2nd District), New York, New York
                  (Board of Governors of the Federal Reserve System)
             Federal Deposit Insurance Corporation, Washington, D.C.
             New York State Banking Department, Albany, New York

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

             The trustee is authorized to exercise corporate trust powers.

2.   AFFILIATIONS WITH THE OBLIGOR

     If the obligor is an affiliate of the trustee, describe each such
     affiliation.

             None

3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15:

     The obligor currently is not in default under any of its outstanding
     securities for which United States Trust Company of New York is Trustee.
     Accordingly, responses to Items 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and
     15 of Form T-1 are not required under General Instruction B.


16.      LIST OF EXHIBITS



                     
     T-1.1        --       Organization Certificate, as amended, issued by the
                           State of New York Banking Department to transact
                           business as a Trust Company, is incorporated by
                           reference to Exhibit T-1.1 to Form T-1 filed on
                           September 15, 1995 with the Commission pursuant to
                           the Trust Indenture Act of 1939, as amended by the
                           Trust Indenture Reform Act of 1990 (Registration No.
                           33-97056).

     T-1.2        --       Included in Exhibit T-1.1.

     T-1.3        --       Included in Exhibit T-1.1.

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16.  LIST OF EXHIBITS
     (cont'd)



                     
     T-1.4        --       The By-Laws of United States Trust Company of New
                           York, as amended, is incorporated by reference to
                           Exhibit T-1.4 to Form T-1 filed on September 15, 1995
                           with the Commission pursuant to the Trust Indenture
                           Act of 1939, as amended by the Trust Indenture Reform
                           Act of 1990 (Registration No. 33-97056).

     T-1.6        --       The consent of the trustee required by Section 321(b)
                           of the Trust Indenture Act of 1939, as amended by the
                           Trust Indenture Reform Act of 1990.

     T-1.7        --       A copy of the latest report of condition of the
                           trustee pursuant to law or the requirements of its
                           supervising or examining authority.


NOTE

As of April 21, 1998, the trustee had 2,999,020 shares of Common Stock
outstanding, all of which are owned by its parent company, U.S. Trust
Corporation. The term "trustee" in Item 2, refers to each of United States Trust
Company of New York and its parent company, U. S. Trust Corporation.

In answering Item 2 in this statement of eligibility as to matters peculiarly
within the knowledge of the obligor or its directors, the trustee has relied
upon information furnished to it by the obligor and will rely on information to
be furnished by the obligor and the trustee disclaims responsibility for the
accuracy or completeness of such information.

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

Pursuant to the requirements of the Trust Indenture Act of 1939, the trustee,
United States Trust Company of New York, a corporation organized and existing
under the laws of the State of New York, has duly caused this statement of
eligibility to be signed on its behalf by the undersigned, thereunto duly
authorized, all in the City of New York, and State of New York, on the 22nd day
of April 1998.

UNITED STATES TRUST COMPANY
         OF NEW YORK, Trustee

By:  /s/ James E. Logan
    -----------------------------------
         James E. Logan
         Vice President

JEL/pg
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                                                                   EXHIBIT T-1.6

        The consent of the trustee required by Section 321(b) of the Act.

                     United States Trust Company of New York
                              114 West 47th Street
                               New York, NY 10036


September 1, 1995



Securities and Exchange Commission
450 5th Street, N.W.
Washington, DC  20549

Gentlemen:

Pursuant to the provisions of Section 321(b) of the Trust Indenture Act of 1939,
as amended by the Trust Indenture Reform Act of 1990, and subject to the
limitations set forth therein, United States Trust Company of New York ("U.S.
Trust") hereby consents that reports of examinations of U.S. Trust by Federal,
State, Territorial or District authorities may be furnished by such authorities
to the Securities and Exchange Commission upon request therefor.




Very truly yours,


UNITED STATES TRUST COMPANY
         OF NEW YORK



By: /s/ Gerard F. Ganey
   ------------------------------------
        Senior Vice President
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                                                                   EXHIBIT T-1.7

                     UNITED STATES TRUST COMPANY OF NEW YORK
                       CONSOLIDATED STATEMENT OF CONDITION
                                DECEMBER 31, 1997
                                ($ IN THOUSANDS)




ASSETS
                                                 
Cash and Due from Banks                             $   80,246

Short-Term Investments                                 386,006

Securities, Available for Sale                         661,596

Loans                                                1,774,551
Less:  Allowance for Credit Losses                      16,202
                                                    ----------
      Net Loans                                      1,758,349
Premises and Equipment                                  61,477
Other Assets                                           124,499
                                                    ----------
      TOTAL ASSETS                                  $3,072,173
                                                    ==========

LIABILITIES
Deposits:
      Non-Interest Bearing                          $  686,507
      Interest Bearing                               1,773,254
                                                    ----------
         Total Deposits                              2,459,761

Short-Term Credit Facilities                           295,342
Accounts Payable and Accrued Liabilities               149,775
                                                    ----------
      TOTAL LIABILITIES                             $2,904,878
                                                    ==========

STOCKHOLDER'S EQUITY
Common Stock                                            14,995
Capital Surplus                                         49,541
Retained Earnings                                      100,235
Unrealized Gains on Securities
     Available for Sale (Net of Taxes)                   2,524
                                                    ----------

TOTAL STOCKHOLDER'S EQUITY                             167,295
                                                    ----------
    TOTAL LIABILITIES AND
     STOCKHOLDER'S EQUITY                           $3,072,173
                                                    ==========


I, Richard E. Brinkmann, Senior Vice President & Comptroller of the named bank
do hereby declare that this Statement of Condition has been prepared in
conformance with the instructions issued by the appropriate regulatory authority
and is true to the best of my knowledge and belief.

Richard E. Brinkmann, SVP & Controller

February 9, 1998