EXHIBIT 10.78

                            ASSIGNMENT OF INTEREST
                                     UNDER
                               LETTER AGREEMENT
                                     WITH
                           STMICROELECTRONICS, INC.


          THIS ASSIGNMENT OF INTEREST UNDER LETTER AGREEMENT WITH
STMICROELECTRONICS, INC. ("Assignment"), is entered into effective as of April
21, 1999 ("Effective Date"), between FI Financial, LLC ("FIF"), and the party
whose name appears below, which party is referred to herein as the "Assignee":


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                           PRINT NAME OF "ASSIGNEE"

          Unless otherwise defined herein, all capitalized terms appearing in
this Assignment shall have the meanings defined for such terms in the letter
agreement dated April 14, 1999, entered into between FIF, STMicroelectronics,
Inc. ("ST"), and Microelectronic Packaging, Inc. ("MPI") ("Letter Agreement").

          Pursuant to the Letter Agreement, FIF and ST have opened an escrow
with Mission Valley Escrow ("Escrow Account"), and FIF has deposited into the
Escrow Account the amount of Five Hundred Thousand Dollars ($500,000.00).

          Pursuant to this Assignment, Assignee desires to acquire from FIF an
interest in the Escrow Account, and a corresponding interest under the Letter
Agreement, all in accordance with the provisions of this Assignment.

          FOR VALUE RECEIVED, FIF hereby assigns and transfers to Assignee, and
Assignee hereby accepts from FIF, an interest in the Escrow Account ("Assigned
Interest") in the dollar amount appearing below, which dollar amount is referred
to herein as the "Escrow Reimbursement":


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           PRINT APPLICABLE DOLLAR AMOUNT FOR "ESCROW REIMBURSEMENT"

          In exchange for receiving the Assigned Interest, Assignee hereby
directs Ross, Dixon & Bell, LLP ("RDB") to withdraw the amount of the Escrow
Reimbursement from RDB's Client Trust Account, which amount was received by RDB
from Assignee for the purpose of acquiring the Assigned Interest, and
immediately pay the amount of the Escrow Reimbursement to FIF or its assignee,
which assignee may be designated by James T. Waring.

 
          By executing this Assignment where indicated below, Assignee confirms
that Assignee has acquired the Assigned Interest in exchange for the Escrow
Reimbursement, and FIF confirms that FIF has in fact assigned and transferred
the Assigned Interest to Assignee, which shall be deemed to be a portion of the
Escrow Account in an amount equal to the Escrow Reimbursement.

          Furthermore, by executing this Assignment where indicated below,
Assignee hereby authorizes FIF to act as the agent for Assignee in connection
with all matters pertaining to the Escrow Account, subject to the limitation
that Assignee's portion of the Escrow Account in an amount equal to the Escrow
Reimbursement ("Assignee's Balance") shall be withdrawn from the Escrow Account
only for the following purposes ("Authorized Purposes"): (a) to pay the amount
of Assignee's Balance to ST pursuant to the terms and conditions of the Letter
Agreement, but only after Assignee has executed and delivered to MPI a
counterpart copy of the Debt Conversion and Mutual Settlement and Release
Agreement and the other agreements related thereto, that pertain to the shares
of MPI's Series A Preferred Stock that are being acquired by Assignee in
exchange for Assignee's Balance ("ST Transaction"); or (b) in the event the ST
Transaction for any reason is not completed on or before June 30, 1999 (or such
later date as may be agreed upon in writing by Assignee), to pay the amount of
Assignee's Balance to Assignee upon the closing of the Escrow Account.

          Assignee agrees that FIF has consented to act as agent for Assignee in
connection with the Escrow Account solely for the convenience of Assignee, and
that FIF shall not have any liabilities or obligations of any kind to Assignee
in connection with the Escrow Account, unless and only unless FIF authorizes
Assignee's Balance to be withdrawn from the Escrow Account for any reason other
than the Authorized Purposes, without Assignee's written approval.

          Assignee agrees that all of the funds on deposit in the Escrow Account
are being invested at a nominal rate of interest roughly equivalent to the rate
of interest generally paid by national banks on funds deposited in passbook
savings accounts, and that for the convenience of the parties, FIF shall be
entitled to collect and retain all of the interest earned on the funds deposited
in the Escrow Account. FIF expects the amount of such interest to be minor and
nominal, and Assignee agrees that the amount of such interest will not be
material to Assignee under the circumstances and should be paid to FIF for the
convenience of the parties.

          IN WITNESS WHEREOF, the undersigned have executed this Assignment as
of the Effective Date.


FI FINANCIAL, LLC                       ASSIGNEE


By:________________________________     ____________________________________
   James T. Waring, Manager             Signature


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                                        Print Name

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