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                                                                    EXHIBIT 10.1
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[LOGO]  BANK OF AMERICA                                   AMENDMENT TO DOCUMENTS
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                   AMENDMENT NO. 4 TO BUSINESS LOAN AGREEMENT


         This Amendment No. 4 (the "Amendment") dated as of May 15, 1996, is
between BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION (the "Bank") and
COHU, INC. (the "Borrower").

                                    RECITALS

         A. The Bank and the Borrower entered into a certain Business Loan
Agreement dated as of June 11, 1994, as previously amended (the "Agreement").

         B. The Bank and the Borrower desire to further amend the Agreement.


                                    AGREEMENT

         1. DEFINITIONS. Capitalized terms used but not defined in this
Amendment shall have the meaning given to them in the Agreement.

         2. AMENDMENTS. The Agreement is hereby amended as follows:

            2.1   In subparagraph 1.1(a) of the Agreement, the amount "Five
                  Million Dollars ($5,000,000)" is substituted for the amount
                  "Three Million Dollars ($3,000,000)."

            2.2   In Paragraph 1.2 of the Agreement, the date "May 1, 1998" is
                  substituted for the date "May 31, 1996."

            2.3   Subparagraphs 1.1 (b) and (c) of the Agreement are amended to
                  read in their entirety as follows:

                  (b) This is a revolving line of credit with within line
                      facilities for the issuance by the Bank's London Branch of
                      a performance bank guaranty for the account of the
                      Borrower (the "PBG") and letters of credit. During the
                      availability period, the Borrower may repay principal
                      amounts and reborrow them.

                  (c) The Borrower agrees not to permit the outstanding
                      principal balance of the line of credit plus the stated
                      amount of the PBG, including amounts paid under the PBG
                      not yet reimbursed, plus the outstanding amounts of any
                      letters of credit, including amounts drawn on letters of
                      credit and not yet reimbursed, to exceed the Facility No.
                      1 Commitment.

            2.4   A new Paragraph 1.5A is added to the Agreement, which reads in
                  its entirety as follows:

                  1.5A     LETTERS OF CREDIT. This line of credit may be used
                           for financing:

                           (i)     commercial letters of credit with a maximum
                                   maturity of 365 days but not to extend more
                                   than 180 days beyond the Facility No. 1
                                   Expiration Date. Each commercial letter of
                                   credit will require drafts payable at sight.

                           (ii)    standby letters of credit with a maximum
                                   maturity of 365 days but not to extend more
                                   than 180 days beyond the Facility No. 1
                                   Expiration Date.

                           (iii)   The amount of letters of credit outstanding 
                                   at any one time, (including amounts drawn on
                                   letters of credit and not yet reimbursed),
                                   may not exceed Two Hundred Fifty Thousand
                                   Dollars ($250,000).

                  The Borrower agrees:

                  (a)  any sum drawn under a letter of credit may, at the option
                       of the Bank, be added to the principal amount outstanding
                       under this Agreement. The amount will bear interest and
                       be due as described elsewhere in this Agreement.
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                  (b)  if there is a default under this Agreement, to
                       immediately prepay and make the Bank whole for any
                       outstanding letters of credit.

                  (c)  the issuance of any letter of credit and any amendment to
                       a letter of credit is subject to the Bank's written
                       approval and must be in form and content satisfactory to
                       the Bank and in favor of a beneficiary acceptable to the
                       Bank.

                  (d)  to sign the Bank's form Application and Agreement for
                       Commercial Letter of Credit or Application and Agreement
                       for Standby Letter of Credit.

                  (e)  to pay any issuance and/or other fees that the Bank
                       notifies the Borrower will be charged for issuing and
                       processing letters of credit for the Borrower.

                  (f)  to allow the Bank to automatically charge its checking
                       account for applicable fees, discounts, and other
                       charges.

            2.5   In subparagraph 7.2(a) of the Agreement, the term "90 days" is
                  substituted for the term "150 days."

            2.6   In subparagraph 7.2(c) of the Agreement, the term "90 days" is
                  substituted for the term "150 days."

            2.7   Paragraph 7.3 of the Agreement is amended to read in its
                  entirety as follows:

                  "7.3 QUICK RATIO. To maintain on a consolidated basis a ratio
                  of quick assets to current liabilities of at least 1.20:1.00,
                  measured quarterly.

                  'Quick assets' means cash, short-term cash investments, net
                  trade receivables and marketable securities not classified as
                  long-term investments."

            2.8   In Paragraph 7.4 of the Agreement, the amount "Sixty Five
                  Million Dollars ($65,000,000)" is substituted for the amount
                  "Thirty Million Dollars ($30,000,000)."

            2.9   The first sentence of Paragraph 7.5 of the Agreement is
                  amended to read as follows:

                  "To maintain on a consolidated basis a ratio of total
                  liabilities to tangible net worth not exceeding .60:1.00,
                  measured on a quarterly basis."

            2.10  Paragraph 7.6 of the Agreement is deleted in its entirety.


         3. EFFECT OF AMENDMENT. Except as provided in this Amendment, all of
the terms and conditions of the Agreement shall remain in full force and effect.

            This Amendment is executed as of the date stated at the beginning of
this Amendment.





BANK OF AMERICA
NATIONAL TRUST AND SAVINGS                   COHU, INC.                  
ASSOCIATION                                                               
                                                                       
                                                                      
/s/ Paul M. Tuomainen                        /s/ Charles A. Schwan     
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BY: PAUL M. TUOMAINEN                        BY:   CHARLES A. SCHWAN, PRESIDENT
JR., VICE PRESIDENT                                AND CHIEF EXECUTIVE OFFICER 
                                                                             
                                             


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[LOGO]  Bank of America
     National Trust and Savings Association              Business Loan Agreement

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This Agreement dated as of 6-11-1994, is between Bank of America National Trust 
and Savings Association (the "Bank") and Cohu, Inc. (the "Borrower").

1.   FACILITY NO. 1: LINE OF CREDIT AMOUNT AND TERMS

1.1  LINE OF CREDIT AMOUNT.

(a)  During the availability period described below, the Bank will provide a
     line of credit to the Borrower. The amount of the line of credit (the
     "Facility No. 1" Commitment) is Three Million Dollars Dollars ($3,000,000).

(b)  This is a revolving line of credit with a within line facility for the
     issuance by the Bank's London Branch of a performance bank guaranty for the
     account of the Borrower (the "PBG"). During the availability period, the
     Borrower may repay principal amounts and reborrow them.

(c)  The Borrower agrees not to permit the outstanding principal balance of the
     line of credit plus the stated amount of the PBG, including amounts paid
     under the PBG not yet reimbursed, to exceed the Facility No. 1 Commitment.

1.2  AVAILABILITY PERIOD.

The line of credit is available between the date of this Agreement and April 30,
1996 (the "Facility No. 1 Expiration Date") unless the Borrower is in default.

1.3  INTEREST RATE.

(a)  The Facility No. 1 interest rate is the Bank's Reference Rate.

(b)  The Reference Rate is the rate of interest publicly announced from time to
     time by the Bank in San Francisco, California, as its Reference Rate. The
     Reference Rate is set by the Bank based on various factors, including the
     Bank's costs and desired return, general economic conditions and other
     factors, and is used as a reference point for pricing some loans. The Bank
     may price loans to its customers at, above, or below the Reference Rate.
     Any change in the Reference Rate shall take effect at the opening of
     business on the day specified in the public announcement of a change in the
     Bank's Reference Rate.

1.4  REPAYMENT TERMS.

(a)  The Borrower will pay interest on June 30, 1994, and then monthly
     thereafter until payment in full of any principal outstanding under this
     line of credit.

(b)  The Borrower will repay in full all principal and any unpaid interest or
     other charges outstanding under this line of credit no later than the
     Expiration Date.

1.5  PERFORMANCE BANK GUARANTY. This line of credit may be used for financing
     the PBG issued at the Bank's London Branch for the account of the Borrower
     in favor of Eastern Bechtel Corporation in the stated amount of Ninety Six
     Thousand Twenty One Dollars and 90/100 ($96,021.90) with a maximum maturity
     of June 27, 1997.
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The Borrower agrees:

(a)  any amount paid by the Bank under the PBG may be added to the principal
     amount outstanding under the Facility No. 1 Commitment of this Agreement.
     The amount will bear interest and be due as described elsewhere in this
     Agreement.

(b)  if there is a default under this Agreement, to immediately prepay and make
     the Bank whole for the outstanding PBG.

(c)  to sign all documentation required by the Bank's London Branch for the
     issuance of the PBG.

(d)  to pay any issuance and/or other fees that the Bank notifies the Borrower
     will be charged for issuing the PBG.

2.   FACILITY NO. 2: LINE OF CREDIT AMOUNT AND TERMS

2.1  LINE OF CREDIT AMOUNT.

(a)  During the availability period described below, the Bank will provide a
     line of credit to the Borrower. The amount of the line of credit (the
     "Facility No. 2 Commitment") is Six Million Dollars ($6,000,000).

(b)  This is a non-revolving line of credit with a term repayment option. Any
     amount borrowed, even if repaid before the end of the availability period,
     permanently reduces the remaining available line of credit.

(c)  The Borrower agrees not to permit the outstanding principal balance of the
     line of credit to exceed the Facility No. 2 Commitment.

2.2  AVAILABILITY PERIOD.

The line of credit is available between the date of this Agreement and September
30, 1994 (the "Facility No. 2 Expiration Date") unless the Borrower is in
default.

2.3  INTEREST RATE.

(a)  Unless the Borrower elects an optional interest rate as described below,
     the Facility No. 2 interest rate is the Bank's Reference Rate plus .25 of a
     percentage points.

2.4  REPAYMENT TERMS.

(a)  The Borrower must reduce the Facility No. 2 outstandings to no greater than
     Five Million Dollars ($5,000,000) prior to term out of Facility No. 2.

(b)  The Borrower will pay interest on June 30, 1994, and then monthly
     thereafter until payment in full of any principal outstanding under this
     line of credit.

(c)  The Borrower will repay the principal amount outstanding on the Facility
     No. 2 Expiration Date in 48 successive equal monthly installments starting
     October 30, 1994. On September 30, 1998, the Borrower will repay the
     remaining principal balance plus any interest then due.

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(d)  The Borrower may prepay the loan in full or in part at any time. The
     prepayment will be applied to the most remote installment of principal due
     under this Agreement.

2.6  OPTIONAL INTEREST RATES. Instead of the interest rate based on the Bank's
Reference Rate, the Borrower may elect to have all or portions of the line of
credit (during the availability period) bear interest at the rate(s) described
below during an interest period agreed to by the Bank and the Borrower. Each
interest rate is a rate per year. Interest will be paid on the last day of each
month during the interest period. At the end of any interest period, the
interest rate will revert to the rate based on the Reference Rate, unless the
Borrower has designated another optional interest rate for the portion.

2.7  LONG TERM RATE. The Borrower may elect to have all or portions of the
principal balance of the line of credit bear interest at the Long Term Rate,
subject to the following requirements:

(a)  The interest period during which the Long Term Rate will be in effect will
     be one year or more. The interest period must begin on or after the last
     day of the availability period specified above.

(b)  The "Long Term Rate" means the fixed interest rate the Bank and the
     Borrower agree will apply to the portion during the applicable interest
     period.

(c)  Each Long Term Rate portion will be for an amount not less than One Million
     Dollars ($1,000,000).

(d)  Any portion of the principal balance of the line of credit already bearing
     interest at the Long Term Rate will not be converted to a different rate
     during its interest period.

(e)  The Borrower may prepay the Long Term Rate portion in whole or in part in
     the minimum amount of One Hundred Thousand Dollars ($100,000). The Borrower
     will give the Bank irrevocable written notice of the Borrower's intention
     to make the prepayment, specifying the date and amount of the prepayment.
     The notice must be received by the Bank at least 5 banking days in advance
     of the prepayment. All prepayments of principal on the Long Term Rate
     portion will be applied on the most remote principal installment or
     installments then unpaid.

(f)  Each prepayment of a Long Term Rate portion, whether voluntary, by reason
     of acceleration or otherwise, will be accompanied by payment of all accrued
     interest on the amount of the prepayment and the prepayment fee described
     below.

(g)  The prepayment fee will be the sum of fees calculated separately for each
     Prepaid Installment, as follows:

     (i)  The Bank will first determine the amount of interest which would have
          accrued each month for the Prepaid Installment had it remained
          outstanding until the applicable Original Payment Date, using the Long
          Term Rate;

     (ii) The Bank will then subtract from each monthly interest amount
          determined in (i), above, the amount of interest which would accrue
          for that Prepaid Installment if it were reinvested from the date of
          prepayment through the Original Payment Date, using the following
          rate:

          (A)  If the Original Payment Date is more than 5 years after the date
               of prepayment: the Treasury Rate plus one-quarter of one
               percentage point;


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          (B)  If the Original Payment Date is 5 years or less after the date of
               prepayment: the Money Market Rate.

     (iii) If (i) minus (ii) for the Prepaid Installment is greater than zero,
           the Bank will discount the monthly differences to the date of
           prepayment by the rate used in (ii) above. The sum of the discounted
           monthly differences is the prepayment fee for that Prepaid
           Installment.

(h) The following definitions will apply to the calculation of the prepayment
    fee:

     "Money Market" means the domestic certificate of deposit market, the
     Eurodollar deposit market or other appropriate money market selected by the
     Bank.

     "Money Market Rate" means the fixed interest rate per annum which the Bank
     determines could be obtained by reinvesting a specified Prepaid Installment
     in the Money Market from the date of prepayment through the Original
     Payment Date.

     "Original Payment Dates" mean the dates on which principal of the Long Term
     Rate portion would have been paid if there had been no prepayment. If a
     portion of the principal would have been paid later than the end of the
     interest period in effect at the time of prepayment, then the Original
     Payment Date for that portion will be the last day of the interest period.

     "Prepaid Installment" means the amount of the prepaid principal of the Long
     Term Rate portion which would have been paid on a single Original Payment
     Date.

     "Treasury Rate" means the interest rate yield for U.S. Government Treasury
     Securities which the Bank determines could be obtained by reinvesting a
     specified Prepaid Installment in such securities from the date of
     prepayment through the Original Payment Date.

(i)  The Bank may adjust the Treasury Rate and Money Market Rate to reflect the
     compounding, accrual basis, or other costs of the Long Term Rate portion.
     Each of the rates is the Bank's estimate only and the Bank is under no
     obligation to actually reinvest any prepayment. The rates will be based on
     information from either the Telerate or Reuters information services, The
     Wall Street Journal, or other information sources the Bank deems
     appropriate.

3.  UNUSED COMMITMENT FEE (FACILITY NO. 1). The Borrower agrees to pay a fee on
any difference between the Facility No. 1 Commitment and the amount of credit it
actually uses, determined by the weighted average loan balance maintained during
the specified period. The fee will be calculated at .125% per year. This fee is
due on July 31, 1994 and quarterly thereafter until the Facility No. 1
Expiration Date.

4.  DISBURSEMENTS, PAYMENTS AND COSTS

4.1 REQUESTS FOR CREDIT. Each request for an extension of credit will be made in
writing in a manner acceptable to the Bank, or by another means acceptable to
the Bank.

4.2 DISBURSEMENTS AND PAYMENTS. Each disbursement by the Bank and each payment
by the Borrower will be:

(a) made at the Bank's branch (or other location) selected by the Bank from time
    to time;

(b) made for the account of the Bank's branch selected by the Bank from time to
    time;

(c) made in immediately available funds, or such other type of funds selected by
    the Bank;

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(d) evidenced by records kept by the Bank. In addition, the Bank may, at its
    discretion, require the Borrower to sign one or more promissory notes.

4.3  TELEPHONE AUTHORIZATION.

(a)  The Bank may honor telephone instructions for advances or repayments or for
     the designation of optional interest rates given by any one of the
     individuals authorized to sign loan agreements on behalf of the Borrower,
     or any other individual designated by any one of such authorized signers.

(b)  Advances will be deposited in and repayments will be withdrawn from the
     Borrower's account number 14505-50312, or such other of the Borrower's
     accounts with the Bank as designated in writing by the Borrower.

(c)  The Borrower indemnifies and excuses the Bank (including its officers,
     employees, and agents) from all liability, loss, and costs in connection
     with any act resulting from telephone instructions it reasonably believes
     are made by any individual authorized by the Borrower to give such
     instructions.

4.4  DIRECT DEBIT.

(a)  The Borrower agrees that interest, principal payments and any fees will be
     deducted automatically on the due date from checking account number
     14505-50312.

(b)  The Bank will debit the account on the dates the payments become due. If a
     due date does not fall on a banking day, the Bank will debit the account on
     the first banking day following the due date.

(c)  The Borrower will maintain sufficient funds in the account on the dates the
     Bank enters debits authorized by this Agreement. If there are insufficient
     funds in the account on the date the Bank enters any debit authorized by
     this Agreement, the debit will be reversed.

4.5  BANKING DAYS. Unless otherwise provided in this Agreement, a banking day is
a day other than a Saturday or a Sunday on which the Bank is open for business
in California. All payments and disbursements which would be due on a day which
is not a banking day will be due on the next banking day. All payments received
on a day which is not a banking day will be applied to the credit on the next
banking day.

4.6  TAXES. The Borrower will not deduct any taxes from any payments it makes to
the Bank. If any government authority imposes any taxes on any payments made by
the Borrower, the Borrower will pay the taxes and will also pay to the Bank, at
the time interest is paid, any additional amount which the Bank specifies as
necessary to preserve the after-tax yield the Bank would have received if such
taxes had not been imposed. Upon request by the Bank, the Borrower will confirm
that it has paid the taxes by giving the Bank official tax receipts (or
notarized copies) within 30 days after the due date. However, the Borrower will
not pay the Bank's net income taxes.

4.7  INTEREST CALCULATION. Except as otherwise stated in this Agreement, all
interest and fees, if any, will be computed on the basis of a 360-day year and
the actual number of days elapsed. This results in more interest or a higher fee
than if a 365-day year is used.

4.8  INTEREST ON LATE PAYMENTS. At the Bank's sole option in each instance, any
amount not paid when due under this Agreement (including interest) shall bear
interest from the due date at the Bank's Reference Rate plus 1.00 percentage
point. This may result in compounding of interest.

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4.9  DEFAULT RATE. Upon the occurrence and during the continuation of any 
default under this Agreement, advances under this Agreement will at the option
of the Bank bear interest at a rate per annum which is 2.00 percentage points
higher than the rate of interest otherwise provided under this Agreement. This
will not constitute a waiver of any default.

5. CONDITIONS

The Bank must receive the following items, in form and content acceptable to the
Bank, before it is required to extend any credit to the Borrower under this
Agreement:

5.1 AUTHORIZATIONS. Evidence that the execution, delivery and performance by the
Borrower (and any guarantor) of this Agreement and any instrument or agreement
required under this Agreement have been duly authorized.

5.2 OTHER ITEMS. Any other items that the Bank reasonably requires.

6.  REPRESENTATIONS AND WARRANTIES

When the Borrower signs this Agreement, and until the Bank is repaid in full,
the Borrower makes the following representations and warranties. Each request
for an extension of credit constitutes a renewed representation.

6.1  ORGANIZATION OF BORROWER. The Borrower is a corporation duly formed and
existing under the laws of the state where organized.

6.2  AUTHORIZATION. This Agreement, and any instrument or agreement required
hereunder, are within the Borrower's powers, have been duly authorized, and do
not conflict with any of its organizational papers.

6.3  ENFORCEABLE AGREEMENT. This Agreement is a legal, valid and binding
agreement of the Borrower, enforceable against the Borrower in accordance with
its terms, and any instrument or agreement required hereunder, when executed and
delivered, will be similarly legal, valid, binding and enforceable.

6.4  GOOD STANDING. In each state in which the Borrower does business, it is
properly licensed, in good standing, and, where required, in compliance with
fictitious name statutes.

6.5  NO CONFLICTS. This Agreement does not conflict with any law, agreement, or
obligation by which the Borrower is bound.

6.6  FINANCIAL INFORMATION. All financial and other information that has been or
will be supplied to the Bank is:

(a)  sufficiently complete to give the Bank accurate knowledge of the Borrower's
     (and any guarantor's) financial condition.

(b)  in form and content required by the Bank.

(c)  in compliance with all government regulations that apply.

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6.7 LAWSUITS. There is no lawsuit, tax claim or other dispute pending or
threatened against the Borrower, which, if lost, would impair the Borrower's
financial condition or that of the Borrower's business, or would impair the
Borrower's ability to repay the loan, except as have been disclosed in writing
to the Bank.

6.8 OTHER OBLIGATIONS. The Borrower is not in default on any obligation for
borrowed money, any purchase money obligation or any other material lease,
commitment, contract, instrument or obligation.

6.9 INCOME TAX RETURNS. The Borrower has no knowledge of any pending assessments
or adjustments of its income tax for any year.

6.10 NO EVENT OF DEFAULT. There is no event which is, or with notice or lapse of
time or both would be, a default under this Agreement.

6.11 ERISA PLANS.

(a)  The Borrower has fulfilled its obligations, if any, under the minimum
     funding standards of ERISA and the Code with respect to each Plan and is in
     compliance in all material respects with the presently applicable
     provisions of ERISA and the Code, and has not incurred any liability with
     respect to any Plan under Title IV of ERISA.

(b)  No reportable event has occurred under Section 4043(b) of ERISA for which
     the PBGC requires 30 day notice.

(c)  No action by the Borrower to terminate or withdraw from any Plan has been
     taken and no notice of intent to terminate a Plan has been filed under
     Section 4041 of ERISA.

(d)  No proceeding has been commenced with respect to a Plan under Section 4042
     of ERISA, and no event has occurred or condition exists which might
     constitute grounds for the commencement of such a proceeding.

(e)  The following terms have the meanings indicated for purposes of this
     Agreement:

     (i)    "Code" means the Internal Revenue Code of 1986, as amended from time
            to time.

     (ii)   "ERISA" means the Employee Retirement Income Act of 1974, as amended
            from time to time.

     (iii)  "PBGC" means the Pension Benefit Guaranty Corporation established
            pursuant to Subtitle A of Title IV of ERISA.

     (iv)   "Plan" means any employee pension benefit plan maintained or
            contributed to by the Borrower and insured by the Pension Benefit
            Guaranty Corporation under Title IV of ERISA.

6.12 LOCATION OF BORROWER. The Borrower's place of business (or, if the Borrower
has more than one place of business, its chief executive office) is located at
the address listed under the Borrower's signature on this Agreement.

7. COVENANTS

The Borrower agrees, so long as credit is available under this Agreement and
until the Bank is repaid in full:


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7.1 USE OF PROCEEDS. To use the proceeds of Facility No. 1 for short term
working capital needs and of Facility No. 2 to finance the acquisition of
Daymarc Corporation for Facility No. 2.

7.2 FINANCIAL INFORMATION. To provide the following financial information and
statements and such additional information as requested by the Bank from time to
time:

(a)  Within 150 days of the Borrower's fiscal year end, the Borrower's annual
     financial statements. These financial statements must be audited (with an
     unqualified opinion) by a Certified Public Accountant ("CPA") acceptable to
     the Bank. The statements shall be prepared on a consolidated basis.

(b)  Within 45 days of the period's end, the Borrower's quarterly financial
     statements. These financial statements may be Borrower prepared. The
     statements shall be prepared on a consolidating and consolidated basis.

(c)  Within 150 days after the filing with the Securities and Exchange
     Commission, copies of the Borrower's Form 10-K Annual Report.

(d)  Within 60 days after the filing with the Securities and Exchange
     Commission, copies of the Borrower's Form 10-Q Quarterly Report.

7.3  WORKING CAPITAL. To maintain on a consolidated basis current assets in
excess of current liabilities by at least Twenty Million Dollars ($20,000,000).

7.4  TANGIBLE NET WORTH. To maintain on a consolidated basis tangible net worth
equal to at least Thirty Million Dollars ($30,000,000), increasing by not less
than 50% of net profit after taxes, measured annually.

"Tangible net worth" means the gross book value of the Borrower's assets
(excluding goodwill, patents, trademarks, trade names, organization expense,
treasury stock, unamortized debt discount and expense, deferred research and
development costs, deferred marketing expenses, and other like intangibles) less
total liabilities, including but not limited to accrued and deferred income
taxes, and any reserves against assets.

7.5  TOTAL LIABILITIES TO TANGIBLE NET WORTH RATIO. To maintain on a
consolidated basis a ratio of total liabilities to tangible net worth not
exceeding .6:1.0 through 12/31/94 and .5:1.0 thereafter.

"Total liabilities" means the sum of current liabilities plus long term
liabilities.

7.6  DEBT SERVICE COVERAGE RATIO. To maintain on a consolidated basis a Debt
Service Coverage Ratio of at least 2.5:1.0.

"Debt Service Coverage Ratio" means the ratio of net profits after taxes plus
depreciation, amortization and interest expense to the current portion of
long-term debt plus interest expense and dividends.

7.7  OTHER DEBTS. Borrower or any wholly owned subsidiary not to have 
outstanding or incur any direct or contingent debts (other than those to the
Bank), or become liable for the debts of others without the Bank's written
consent. This does not prohibit:

(a)  Acquiring goods, supplies, or merchandise on normal trade credit.

(b)  Endorsing negotiable instruments received in the usual course of business.

(c)  Obtaining surety bonds in the usual course of business.


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7.8 OTHER LIENS. Not to create, assume, or allow any security interest or lien
(including judicial liens) on property the Borrower now or later owns, except:

(a)  Deeds of trust and security agreements in favor of the Bank.

(b)  Liens for taxes not yet due.

7.9 CAPITAL EXPENDITURES. Not to spend (including the total amount of any
capital leases) more than Two Million Dollars ($2,000,000) in fiscal years 1994
and 1995 and Two Million Five Hundred Thousand Dollars ($2,500,000) in fiscal
years 1996 and 1997 to acquire fixed or capital assets.

7.10 NOTICES TO BANK. To promptly notify the Bank in writing of:

(a)  any lawsuit over Five Million Dollars ($5,000,000) against the Borrower (or
     any guarantor).

(b)  any substantial dispute between the Borrower (or any guarantor) and any
     government authority.

(c)  any failure to comply with this Agreement.

(d)  any material adverse change in the Borrower's (or any guarantor's)
     financial condition or operations.

(e)  any change in the Borrower's name, legal structure, place of business, or
     chief executive office if the Borrower has more than one place of business.

7.11 BOOKS AND RECORDS. To maintain adequate books and records.

7.12 AUDITS. To allow the Bank and its agents to inspect the Borrower's
properties and examine, audit and make copies of books and records at any
reasonable time. If any of the Borrower's properties, books or records are in
the possession of a third party, the Borrower authorizes that third party to
permit the Bank or its agents to have access to perform inspections or audits
and to respond to the Bank's requests for information concerning such
properties, books and records.

7.13 COMPLIANCE WITH LAWS. To comply with the laws (including any fictitious
name statute), regulations, and orders of any government body with authority
over the Borrower's business.

7.14 PRESERVATION OF RIGHTS. To maintain and preserve all rights, privileges,
and franchises the Borrower now has.

7.15 MAINTENANCE OF PROPERTIES. To make any repairs, renewals, or replacements
to keep the Borrower's properties in good working condition.

7.16 COOPERATION. To take any action requested by the Bank to carry out the
intent of this Agreement.

7.17 GENERAL BUSINESS INSURANCE. To maintain insurance as is usual for the
business it is in.

7.18 ADDITIONAL NEGATIVE COVENANTS. Not to, without the Bank's written consent:

(a)  engage in any business activities substantially different from the
     Borrower's present business.

(b)  liquidate or dissolve the Borrower's business.


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                                      -9-
   12
(c)  enter into any consolidation, merger, pool, joint venture, syndicate, or
     other combination.

(d)  lease, or dispose of all or a substantial part of the Borrower's business
     or the Borrower's asset.

(e)  acquire or purchase a business or its assets.

(f)  sell or otherwise dispose of its subsidiaries.

(g)  voluntarily suspend its business for more than 5 days in any 30 day period.

7.19 ERISA PLANS. To give prompt written notice to the Bank of:

(a)  The occurrence of any reportable event under Section 4043(b) of ERISA for
     which the PBGC requires 30 day notice.

(b)  Any action by the Borrower to terminate or withdraw from a Plan or the
     filing of any notice of intent to terminate under Section 4041 of ERISA.

(c)  Any notice of noncompliance made with respect to a Plan under Section
     4041(b) of ERISA.

(d)  The commencement of any proceeding with respect to a Plan under Section
     4042 of ERISA. 

8. HAZARDOUS WASTE INDEMNIFICATION

The Borrower will indemnify and hold harmless the Bank from any loss or
liability directly or indirectly arising out of the use, generation,
manufacture, production, storage, release, threatened release, discharge,
disposal or presence of a hazardous substance. This indemnity will apply whether
the hazardous substance is on, under or about the Borrower's property or
operations or property leased to the Borrower. The indemnity includes but is not
limited to attorneys' fees (including the reasonable estimate of the allocated
cost of in-house counsel and staff). The indemnity extends to the Bank, its
parent, subsidiaries and all of their directors, officers, employees, agents,
successors, attorneys and assigns. For these purposes, the term "hazardous
substances" means any substance which is or becomes designated as "hazardous" or
"toxic" under any federal, state or local law. This indemnity will survive
repayment of the Borrower's obligations to the Bank.

9. DEFAULT

If any of the following events occur, the Bank may do one or more of the
following: declare the Borrower in default, stop making any additional credit
available to the Borrower, and require the Borrower to repay its entire debt
immediately and without prior notice. If an event of default occurs under the
paragraph entitled "Bankruptcy," below, with respect to the Borrower, then the
entire debt outstanding under this Agreement will automatically be due
immediately.

9.1 FAILURE TO PAY. The Borrower fails to make a payment under this Agreement
when due.

9.2 FALSE INFORMATION. The Borrower has given the Bank false or misleading
information or representations.


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   13
9.3 BANKRUPTCY. The Borrower (or any guarantor) files a bankruptcy petition, a
bankruptcy petition is filed against the Borrower (or any guarantor), or the
Borrower (or any guarantor) makes a general assignment for the benefit of
creditors.

9.4 RECEIVERS. A receiver or similar official is appointed for the Borrower's
(or any guarantor's) business, or the business is terminated.

9.5 LAWSUITS. Any lawsuit or lawsuits are filed on behalf of one or more trade
creditors against the Borrower in an aggregate amount of Five Million Dollars
($5,000,000) or more.

9.6 JUDGMENTS. Any judgments or arbitration awards are entered against the
Borrower (or any guarantor), or the Borrower (or any guarantor) enters into any
settlement agreements with respect to any litigation or arbitration, in an
aggregate amount of Two Million Dollars ($2,000,000) or more.

9.7 GOVERNMENT ACTION. Any government authority takes action that the Bank
believes materially adversely affects the Borrower's (or any guarantor's)
financial condition or ability to repay.

9.8 MATERIAL ADVERSE CHANGE. A material adverse change occurs in the Borrower's
(or any guarantor's) financial condition, properties or prospects, or ability to
repay the loan.

9.9 CROSS-DEFAULt. Any default occurs under any agreement in connection with any
credit the Borrower (or any guarantor) has obtained from anyone else or which
the Borrower (or any guarantor) has guaranteed.

9.10 OTHER BANK AGREEMENTS. The Borrower (or any guarantor) fails to meet the
conditions of, or fails to perform any obligation under any other agreement the
Borrower (or any guarantor) has with the Bank or any affiliate of the Bank.

9.11 ERISA Plans. The occurrence of any one or more of the following events with
respect to the Borrower, provided such event or events could reasonably be
expected, in the judgment of the Bank, to subject the Borrower to any tax,
penalty or liability (or any combination of the foregoing) which, in the
aggregate, could have a material adverse effect on the financial condition of
the Borrower with respect to a Plan:

(a)  A reportable event shall occur with respect to a Plan which is, in the
     reasonable judgment of the Bank likely to result in the termination of such
     Plan for purposes of Title IV of ERISA.

(b)  Any Plan termination (or commencement of proceedings to terminate a Plan)
     or the Borrower's full or partial withdrawal from a Plan.

9.12 OTHER BREACH UNDER AGREEMENT. The Borrower fails to meet the conditions of,
or fails to perform any obligation under, any term of this Agreement not
specifically referred to in this Article.

10. ENFORCING THIS AGREEMENT; MISCELLANEOUS

10.1 GAAP. Except as otherwise stated in this Agreement, all financial
information provided to the Bank and all financial covenants will be made under
generally accepted accounting principles, consistently applied.

10.2 CALIFORNIA LAW. This Agreement is governed by California law.

10.3 SUCCESSORS AND ASSIGNS. This Agreement is binding on the Borrower's and the
Bank's successors and assignees. The Borrower agrees that it may not assign this
Agreement without the Bank's prior consent.


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   14
10.4 ARBITRATION.

(a)  This paragraph concerns the resolution of any controversies or claims
     between the Borrower and the Bank, including but not limited to those that
     arise from:

     (i)    This Agreement (including any renewals, extensions or modifications
            of this Agreement);

     (ii)   Any document, agreement or procedure related to or delivered in
            connection with this Agreement;

     (iii)  Any violation of this Agreement; or

     (iv)   Any claims for damages resulting from any business conducted between
            the Borrower and the Bank, including claims for injury to persons,
            property or business interests (torts).

(b)  At the request of the Borrower or the Bank, any such controversies or
     claims will be settled by arbitration in accordance with the United States
     Arbitration Act. The United States Arbitration Act will apply even though
     this Agreement provides that it is governed by California law.

(c)  Arbitration proceedings will be administered by the American Arbitration
     Association and will be subject to its commercial rules of arbitration.

(d)  For purposes of the application of the statute of limitations, the filing
     of an arbitration pursuant to this paragraph is the equivalent of the
     filing of a lawsuit, and any claim or controversy which may be arbitrated
     under this paragraph is subject to any applicable statute of limitations.
     The arbitrators will have the authority to decide whether any such claim or
     controversy is barred by the statute of limitations and, if so, to dismiss
     the arbitration on that basis.

(e)  If there is a dispute as to whether an issue is arbitrable, the arbitrators
     will have the authority to resolve any such dispute.

(f)  The decision that results from an arbitration proceeding may be submitted
     to any authorized court of law to be confirmed and enforced.

(g)  The procedure described above will not apply if the controversy or claim,
     at the time of the proposed submission to arbitration, arises from or
     relates to an obligation to the Bank secured by real property located in
     California. In this case, both the Borrower and the Bank must consent to
     submission of the claim or controversy to arbitration. If both parties do
     not consent to arbitration, the controversy or claim will be settled as
     follows:

     (i)    The Borrower and the Bank will designate a referee (or a panel of
            referees) selected under the auspices of the American Arbitration
            Association in the same manner as arbitrators are selected in
            Association-sponsored proceedings;

     (ii)   The designated referee (or the panel of referees) will be appointed
            by a court as provided in California Code of Civil Procedure Section
            638 and the following related sections;

     (iii)  The referee (or the presiding referee of the panel) will be an
            active attorney or a retired judge; and

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                                      -12-
   15
     (iv)   The award that results from the decision of the referee (or the
            panel) will be entered as a judgment in the court that appointed the
            referee, in accordance with the provisions of California Code of
            Civil Procedure Sections 644 and 645.

(h)  This provision does not limit the right of the Borrower or the Bank to:

     (i)    exercise self-help remedies such as setoff;

     (ii)   foreclose against or sell any real or personal property collateral;
            or

     (iii)  act in a court of law, before, during or after the arbitration
            proceeding to obtain:

            (A)        an interim remedy; and/or

            (B)        additional or supplementary remedies.

(i)  The pursuit of or a successful action for interim, additional or
     supplementary remedies, or the filing of a court action, does not
     constitute a waiver of the right of the Borrower or the Bank, including the
     suing party, to submit the controversy or claim to arbitration if the other
     party contests the lawsuit. However, if the controversy or claim arises
     from or relates to an obligation to the Bank which is secured by real
     property located in California at the time of the proposed submission to
     arbitration, this right is limited according to the provision above
     requiring the consent of both the Borrower and the Bank to seek resolution
     through arbitration.

(j)  If the Bank forecloses against any real property securing this Agreement,
     the Bank has the option to exercise the power of sale under the deed of
     trust or mortgage, or to proceed by judicial foreclosure.

10.5 SEVERABILITY; WAIVERS. If any part of this Agreement is not enforceable,
the rest of the Agreement may be enforced. The Bank retains all rights, even if
it makes a loan after default. If the Bank waives a default, it may enforce a
later default. Any consent or waiver under this Agreement must be in writing.

10.6 ADMINISTRATION COSTS. The Borrower shall pay the Bank for all reasonable
costs incurred by the Bank in connection with administering this Agreement.

10.7 ATTORNEYS' FEES. The Borrower shall reimburse the Bank for any reasonable
costs and attorneys' fees incurred by the Bank in connection with the
enforcement or preservation of any rights or remedies under this Agreement and
any other documents executed in connection with this Agreement, and including
any amendment, waiver, "workout" or restructuring under this Agreement. In the
event of a lawsuit or arbitration proceeding, the prevailing party is entitled
to recover costs and reasonable attorneys' fees incurred in connection with the
lawsuit or arbitration proceeding, as determined by the court or arbitrator. As
used in this paragraph, "attorneys' fees" includes the allocated costs of
in-house counsel.

10.8 ONE AGREEMENT. This Agreement and any related security or other agreements
required by this Agreement, collectively:

(a)  represent the sum of the understandings and agreements between the Bank and
     the Borrower concerning this credit; and

(b)  replace any prior oral or written agreements between the Bank and the
     Borrower concerning this credit; and


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                                      -13-
   16
(c)  are intended by the Bank and the Borrower as the final, complete and
     exclusive statement of the terms agreed to by them.

In the event of any conflict between this Agreement and any other agreements
required by this Agreement, this Agreement will prevail.

10.9 NOTICES. All notices required under this Agreement shall be personally
delivered or sent by first class mail, postage prepaid, to the addresses on the
signature page of this Agreement, or to such other addresses as the Bank and the
Borrower may specify from time to time in writing.

10.10 HEADINGS. Article and paragraph headings are for reference only and shall
not affect the interpretation or meaning of any provisions of this Agreement.

10.11 PRIOR AGREEMENT SUPERSEDED. This Agreement supersedes the Business Loan
Agreement entered into as of July 1, 1993 between the Bank and the Borrower, and
any credit outstanding thereunder shall be deemed to be outstanding under this
Agreement.

This Agreement is executed as of the date stated at the top of the first page.



[LOGO]
BANK OF AMERICA

NATIONAL TRUST AND SAVINGS ASSOCIATION    COHU, INC.      
                                                                
                                                                 
                                                                     
                                                                       
    /S/  PAUL M. TUOMAINEN, JR.               /S/  CHARLES A. SCHWAN       
    --------------------------------          ----------------------------------
   BY:   PAUL M. TUOMAINEN, JR.              BY:   CHARLES A. SCHWAN     
TITLE:   VICE PRESIDENT                   TITLE:   VICE PRESIDENT-FINANCE  
                                                                           
                                                                           
ADDRESS WHERE NOTICES TO THE BANK         ADDRESS WHERE NOTICES TO THE BORROWER
ARE TO BE SENT:                           ARE TO BE SENT:                  
                                                                             
450 B. St.                                5755 Kearny Villa Rd.          
San Diego, CA  92101                      San Diego, CA  92123            
                                                                 
                                                                     
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