CREDENCE SYSTEMS CORP
10-Q, 1998-06-11
INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS
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<PAGE>



================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q

(Mark One)
[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934

For the quarterly period ended April 30, 1998

                                       OR

[_]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

For the transition period from          to

                         Commission file number 0-22366

                          CREDENCE SYSTEMS CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


            DELAWARE                                            94-2878499
(State Or Other Jurisdiction)                                (IRS  Employer
Of Incorporation Or Organization)                           (Identification No.)

 215 FOURIER AVE., FREMONT, CALIFORNIA                              94539
(Address Of Principal Executive Offices)                          (Zip Code)

        REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE (510) 657-7400

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

              FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR,
                         IF CHANGED SINCE LAST REPORt.

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Sections 13 or 15(d) of the  Securities  Exchange Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes [X]   No [_]

                      APPLICABLE ONLY TO CORPORATE ISSUERS:

     At May 27, 1998, there were 21,648,914  shares of the  Registrant's  common
stock, $0.001 par value per share outstanding.


================================================================================

<PAGE>

CREDENCE SYSTEMS CORPORATION

<TABLE>
<CAPTION>

                                 INDEX                                 PAGE NO.
                                 -----                                 --------
<C>      <S>                                                             <C>

PART I.  FINANCIAL INFORMATION
Item 1.  Financial Statements ...........................................  3
         Condensed Consolidated Balance Sheets ..........................  3
         Condensed Consolidated Income Statements .......................  4
         Condensed Consolidated Statements of Cash Flows ................  5
         Notes to Condensed Consolidated Financial Statements ...........  6
Item 2.  Management's Discussion and Analysis of Financial Condition and
         Results of Operations ..........................................  7

PART II. OTHER INFORMATION
Item 1.  Legal Proceedings .............................................. 20
Item 2.  Changes in Securities .......................................... 20
Item 3.  Defaults Upon Senior Securities ................................ 20
Item 4.  Submission of Matters to a Vote of Securityholders ............. 20
Item 5.  Other Information .............................................. 20
Item 6.  Exhibits and Reports on Form 8-K ............................... 20

</TABLE>


<PAGE>
PART I  - FINANCIAL INFORMATION

ITEM I  - FINANCIAL STATEMENTS

                          CREDENCE SYSTEMS CORPORATION
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>

                                                      APRIL 30,      OCTOBER 31,
                                                        1998             1997
                                                     -----------     -----------
<S>                                                  <C>             <C>
ASSETS                                               (UNAUDITED)
Current assets:
  Cash and cash equivalents ......................   $ 65,841        $132,761
  Restricted cash ................................      5,012          10,002
  Short-term investments .........................     78,313          35,013
  Accounts receivable, net .......................     60,770          55,246
  Inventories ....................................     52,723          42,125
  Other current assets ...........................     13,900          13,001
                                                     --------        --------
    Total current assets .........................    276,559         288,148
Long-term investments ............................     27,980           8,561
Property and equipment, net ......................     45,930          43,050
Other assets .....................................     19,466          18,382
                                                     --------        --------
    Total assets .................................   $369,935        $358,141
                                                     ========        ========

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable ...............................   $ 12,935        $ 13,182
  Accrued liabilities ............................     24,343          20,346
  Income taxes payable ...........................      4,331           4,284
                                                     --------        --------
    Total current liabilities ....................     41,609          37,812
Convertible subordinated notes ...................    115,000         115,000
Minority interest ................................        312             418
Stockholders' equity .............................    213,014         204,911
                                                     --------        --------
    Total liabilities and stockholders' equity....   $369,935        $358,141
                                                     ========        ========
</TABLE>




                             See accompanying notes.


<PAGE>

                          CREDENCE SYSTEMS CORPORATION
                    CONDENSED CONSOLIDATED INCOME STATEMENTS
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
                                   (UNAUDITED)
<TABLE>
<CAPTION>

                                           THREE MONTHS ENDED      SIX MONTHS ENDED
                                                APRIL 30,              APRIL 30,
                                          -------------------    -------------------
                                            1998       1997        1998       1997
                                          --------   --------    --------   --------
<S>                                       <C>        <C>         <C>        <C>
Net sales ............................... $ 74,660   $ 43,355    $157,035   $ 83,616
Cost of goods sold ......................   31,664     18,374      67,102     37,813
                                          --------   --------    --------   --------
Gross margin ............................   42,996     24,981      89,933     45,803
Operating expenses:
   Research and development .............   12,233      8,953      25,724     17,759
   Selling, general and administrative ..   17,931     11,989      38,239     23,420
                                          --------   --------    --------   --------
       Total operating expenses .........   30,164     20,942      63,963     41,179
                                          --------   --------    --------   --------
Operating income ........................   12,832      4,039      25,970      4,624
Interest income and other expenses, net .      200        874       1,158      1,901
                                          --------   --------    --------   --------
Income before income taxes ..............   13,032      4,913      27,128      6,525
Income taxes ............................    4,290      1,627       9,224      2,185
Minority interest .......................      (45)        --         (74)        --
                                          --------   --------    --------   --------
Net income .............................. $  8,787   $  3,286    $ 17,978   $  4,340
                                          ========   ========    ========   ========
Net income per share:
    Basic ............................... $   0.41   $   0.15    $   0.83   $   0.20
                                          ========   ========    ========   ========
    Diluted ............................. $   0.40   $   0.15    $   0.81   $   0.20
                                          ========   ========    ========   ========
Number of shares used in computing per
 share amount:
    Basic ...............................   21,634     21,833      21,731     21,783
                                          ========   ========    ========   ========
    Diluted .............................   22,146     22,265      22,257     22,242
                                          ========   ========    ========   ========
</TABLE>










                             See accompanying notes.

<PAGE>
                          CREDENCE SYSTEMS CORPORATION
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS
                                 (IN THOUSANDS)
                                   (UNAUDITED)
<TABLE>
<CAPTION>
                                                                   SIX MONTHS ENDED
                                                                       APRIL 30,
                                                                 ---------------------
                                                                    1998        1997
                                                                 ---------   ---------
<S>                                                              <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income .................................................. $ 17,978    $  4,340
   Adjustments to reconcile net income to net cash
     provided by operating activities:
     Depreciation and amortization .............................    8,405       5,784
     (Gain) on disposal of property and equipment ..............       (7)        (18)
     Minority interest .........................................       74          --
     Changes in operating assets and liabilities:
        Restricted cash, accounts receivable,
          inventories and other current assets .................  (15,955)        988
        Accounts payable, accrued liabilities and
          income taxes payable .................................    4,566      (6,468)
                                                                 --------    --------
            Net cash provided by operating activities ..........   15,061       4,626
CASH FLOWS FROM INVESTING ACTIVITIES:
   Purchases of available-for-sale securities .................. (103,387)    (22,907)
   Maturities of available-for-sale short-term investments .....   34,668      29,503
   Sales of available-for-sale securities ......................    6,000       3,112
   Acquisition of property and equipment .......................   (5,390)     (5,018)
   Other assets ................................................   (3,048)     (1,533)
   Proceeds from sale of property and equipment ................       --         240
                                                                 --------    --------
         Net cash (used for) provided by investing activities ..  (71,157)      3,397
CASH FLOWS FROM FINANCING ACTIVITIES:
   Issuance of common stock ....................................    1,971         829
   Repurchase of common stock ..................................  (12,795)         --
                                                                 --------    --------
         Net cash (used for) provided by financing activities ..  (10,824)        829
                                                                 --------    --------
Net increase (decrease) in cash and cash equivalents ...........  (66,920)      8,852
Cash and cash equivalents at beginning of period ...............  132,761      48,649
                                                                 --------    --------
Cash and cash equivalents at end of period ..................... $ 65,841    $ 57,501
                                                                 ========    ========
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
   Interest paid ............................................... $  3,103    $      1
   Income taxes paid ........................................... $  8,187    $    972
NONCASH INVESTING ACTIVITIES:
   Net transfers of inventory to property and equipment ........ $  3,924    $  5,588
NONCASH FINANCING ACTIVITIES:
   Income tax benefit from stock option exercises .............. $    949    $    149
</TABLE>

                            See accompanying notes.


<PAGE>

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1.   QUARTERLY FINANCIAL STATEMENTS

     The condensed  consolidated  financial statements and related notes for the
six  months  ended  April  30,  1998 and  1997 are  unaudited  but  include  all
adjustments  (consisting  solely of normal recurring  adjustments) which are, in
the opinion of management,  necessary for a fair  presentation  of the financial
position and results of operations of the Company for the interim  periods.  The
results of operations  for the three and six months ended April 30, 1998 are not
necessarily  indicative  of the  operating  results to be expected  for the full
fiscal  year.  The  information  included  in  this  report  should  be  read in
conjunction with the Company's  audited  consolidated  financial  statements and
notes thereto for the fiscal year ended October 31,  1997 included in the Annual
Report  on Form  10-K  and  the  additional  risk  factors,  including,  without
limitation,   risks  relating  to  fluctuations  in  operating  results,   rapid
technological  change,  importance  of  timely  product  introduction,  risks of
delays,  limited system sales, backlog,  cyclicality of semiconductor  industry,
expansion  of  operations,  management  of growth,  sole or  limited  sources of
supply, reliance on subcontractors,  highly competitive industry,  dependence on
key  customers,  lengthy sales cycle,  dependence on key  personnel,  management
changes,  international sales, proprietary rights, acquisitions,  future capital
needs and  volatility  of stock price,  as set forth in this  Report.  Any party
interested in reviewing these publicly  available  documents should write to the
Chief Financial Officer of the Company.

     USE  OF  ESTIMATES  -  The  preparation  of  the   accompanying   unaudited
consolidated   condensed  financial   statements  requires  management  to  make
estimates  and  assumptions  that affect the amounts  reported in the  financial
statements. Actual results could differ from those estimates.

2.   INVENTORIES

     Inventories  are stated at the lower of standard  cost (which  approximates
first-in,  first-out cost) or market.  Inventories  consist of the following (in
thousands):
<TABLE>
<CAPTION>
                                              April 30,     October 31,
                                                1998           1997
                                              ---------     -----------
         <S>                                  <C>             <C>
         Raw materials ...................... $ 26,881        $ 24,862
         Work-in-process ....................   21,501          14,173
         Finished goods .....................    4,341           3,090
                                              --------        --------
                                              $ 52,723        $ 42,125
                                              ========        ========
</TABLE>

3.   NET INCOME PER SHARE

     The Company has adopted Statement of Financial  Accounting Standards No.128
"Earnings  Per Share" (SFAS 128)  beginning in the first quarter of fiscal 1998.
Accordingly,  net income per share  (basic) is based upon the  weighted  average
number of common  shares  outstanding  during the  period.  Net income per share
(diluted)  is based upon the  weighted  average  number of common  and  dilutive
potential common shares outstanding during the period. The Company's convertible
subordinated  notes are not dilutive  potential common shares and,  accordingly,
were excluded from the calculation of net income per share (diluted). Options to
purchase 756,132 shares at an average price of $29.63 per share were outstanding
at April 30, 1998 but were not included in the  computation of diluted  earnings
per share  because the  options'  exercise  price was  greater  than the average
market  price  of  the  common  shares  and,  therefore,  the  effect  would  be
antidilutive. All earnings per share amounts for all periods have been presented
and where necessary, restated to conform to SFAS 128 requirements. The following
table sets forth the  computation of basic and dilutive net income per share (in
thousands):


<PAGE>
<TABLE>
<CAPTION>
                                         Three Months Ended    Six Months Ended
                                             April 30,             April 30,
                                         ------------------   ------------------
                                           1998      1997       1998      1997
                                          -------   -------   -------   -------
<S>                                       <C>       <C>       <C>       <C>
Numerator:
  Numerator for basic and diluted
  earnings per share - net income ....... $ 8,787   $ 3,286   $17,978   $ 4,340
                                          -------   -------   -------   -------
Denominator:
  Denominator for basic earnings
  per share - weighted-average shares ...  21,634    21,833    21,731    21,783
Effect of dilutive securities-employee
  stock options .........................     512       432       526       459
                                          -------    ------   -------   -------
Denominator for diluted earnings per
  share - adjusted weighted-average
  shares and assumed conversions ........  22,146    22,265    22,257    22,242
                                          -------   -------   -------   -------
Basic earnings per share ................ $  0.41   $  0.15   $  0.83   $  0.20
                                          =======   =======   =======   =======
Diluted earnings per share .............. $  0.40   $  0.15   $  0.81   $  0.20
                                          =======   =======   =======   =======
</TABLE>

4.   CONTINGENCIES

     The Company is involved in various claims arising in the ordinary course of
business,  none of which, in the opinion of management,  if determined adversely
against  the  Company,  will have a  material  adverse  effect on the  Company's
business, financial condition or results of operations.

5.   COMMITMENTS

     The Company currently has an agreement with Summit Design, Inc. to purchase
product licenses through 1999. The remaining  commitment under this agreement as
of April 30, 1998 is approximately  $5 million.  Restricted cash represents cash
in escrow related to the remaining purchase commitments under this agreement.

6.   SUBSEQUENT EVENTS

     On June 1, 1998 the Company purchased from Heuristic Physics  Laboratories,
Inc.  ("HPL") certain assets and assumed certain  liabilities  relating to their
memory test business for $8.0 million.


ITEM 2 - MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS

     The  following  discussion  may contain  predictions,  estimates  and other
forward-looking  statements  that  involve a number of risks and  uncertainties.
While this discussion  represents the Company's  current  judgment on the future
direction  of the  business,  such risks and  uncertainties  could cause  actual
results to differ  materially  from any  future  performance  suggested  herein.
Factors that could cause actual results to differ are identified  throughout the
discussion  below,  as well as the section  entitled "Risk Factors"  below,  and
elsewhere in this  report.  The Company  undertakes  no  obligation  to publicly
release the result of any revisions to these  forward-looking  statements  which
may be made to  reflect  events or  circumstances  after  the date  hereof or to
reflect the occurrence of unanticipated events.

     The following table sets forth items from the Condensed Consolidated Income
Statements as a percentage of net sales for the periods indicated:




<PAGE>
<TABLE>
<CAPTION>
                                        Three Months Ended     Six Months Ended
                                             April 30,              April 30,
                                        ------------------     -----------------
                                          1998       1997       1998       1997
                                         ------     ------     ------    ------
<S>                                       <C>        <C>        <C>       <C>
Net sales .............................   100.0%     100.0%     100.0%    100.0%
Cost of goods sold ....................    42.4       42.4       42.7      45.2
                                          -----      -----      -----     -----
Gross margin ..........................    57.6       57.6       57.3      54.8
Operating expenses
   Research and development ...........    16.4       20.7       16.4      21.2
   Selling, general and administrative.    24.0       27.6       24.4      28.0
                                          -----      -----      -----     -----
      Operating expenses ..............    40.4       48.3       40.8      49.2
                                          -----      -----      -----     -----
Operating income ......................    17.2        9.3       16.5       5.6
Interest income and other expenses, net     0.3        2.0        0.7       2.2
                                          -----      -----      -----     -----
Income before income taxes ............    17.5       11.3       17.2       7.8
Income taxes ..........................     5.7        3.7        5.8       2.6
                                          -----      -----      -----     -----
Net income ............................    11.8%       7.6%      11.4%      5.2%
                                          =====      =====      =====     =====

</TABLE>

RESULTS OF OPERATIONS

NET SALES

     Net sales  consist of revenues  from  systems  sales,  spare  parts  sales,
maintenance  contracts and software sales.  Net sales were $74.7 million for the
second  quarter  and $157.0  million  for the first six  months of fiscal  1998,
representing  an increase of 72.2% and 87.8%  respectively,  over the comparable
periods  of  fiscal  1997.  These  increases  were due  primarily  to  increased
worldwide demand for semiconductor automatic test equipment, particularly in the
Asia Pacific region.  International net sales accounted for approximately  80.0%
and 74.0%, respectively, of the total net sales for the second quarter and first
six  months  of  fiscal  1998,   compared  to  approximately  71.0%  and  73.0%,
respectively, for the comparable periods a year ago. The Company's international
sales of its products and spare parts and its service  revenues are  denominated
primarily in United States dollars.  The increase in international  net sales in
the  second  quarter  and for the  first  six  months  of  fiscal  1998 over the
comparable  periods of fiscal 1997 was due to higher demand in Taiwan  partially
offset by a decrease  in demand in Europe.  The  Company  believes  that its net
sales  for the  short  term will be lower on a  sequential  basis  than in prior
periods.

GROSS MARGIN

     The  Company's  gross margin has been and will continue to be affected by a
variety of factors, including manufacturing efficiencies, pricing by competitors
or suppliers,  new product introductions,  product sales mix, production volume,
customization and  reconfiguration of systems,  international and domestic sales
mix and field service margins. Gross margin was 57.6% for the second quarter and
57.3% for the first six  months of  fiscal  1998,  compared  with  57.6% for the
second  quarter  and 54.8% for the first six months of fiscal  1997.  The slight
increase in gross  margin as a percent of sales for the first six months of 1998
over the first six month of fiscal 1997 was due to increases  in the  efficiency
of the production process, as well as higher  manufacturing and shipping volumes
which  spread fixed  production  costs over a greater  number of systems.  Gross
margins  in the first six months of 1997 was  negatively  impacted  by  reserves
taken  for  slow  moving  inventory   resulting  from  accelerated  new  product
introductions.



<PAGE>

RESEARCH AND DEVELOPMENT

     Research and development  expenses were $12.2 million in the second quarter
of fiscal  1998,  an increase  of $3.3  million or 36.6% over the same period of
fiscal 1997.  Research and development  expenses were $25.7 million in the first
six months of fiscal  1998,  an increase of $8.0  million or 44.9% over the same
period in fiscal  1997.  This  increase,  in  absolute  dollars,  reflected  the
Company's continued  development work on new products and product  enhancements.
As a percentage of net sales,  research and development  expenses were 16.4% for
the second quarter and for the first six months of fiscal 1998,  down from 20.7%
in the second  quarter  and 21.2% for the first six months of fiscal  1997.  The
decrease  in  these  expenses  as a  percentage  of net  sales  is  attributable
primarily to the significant increase in net sales in the second quarter and the
first six  months of fiscal  1998 as  compared  with the  comparable  periods of
fiscal 1997.  The Company  currently  intends to continue to invest  significant
resources  in the  development  of new  products  and  enhancements  of existing
products  for the  foreseeable  future.  Currently  the  Company  expects  these
expenses to decrease  slightly in absolute  dollars for the  remainder of fiscal
1998.

SELLING, GENERAL AND ADMINISTRATIVE

     Selling,  general and  administrative  expenses  were $17.9  million in the
second  quarter of fiscal 1998,  representing  an $5.9 million or 49.6% increase
from the comparable period of fiscal 1997.  Selling,  general and administrative
expenses  were $38.2 million in the first six months of fiscal 1998, an increase
of $14.8 million or 63.3% over the same period in fiscal 1997. The increase from
the prior period is primarily  due to  increased  commissions  payable on higher
sales and higher  marketing,  sales,  and  administrative  overhead  expenses to
support the Company's  increased  business levels. As a percentage of net sales,
selling,  general and administrative  expenses were 24.0% for the second quarter
and 24.4% for the first six  months  of fiscal  1998,  compared  with  27.6% and
28.0%, respectively, for the corresponding periods in fiscal 1997. This decrease
as a  percentage  of net  sales is  attributable  primarily  to the  significant
increase  in net sales in the second  quarter  and first half of fiscal  1998 as
compared  with the  comparable  periods of fiscal  1997.  Currently  the Company
expects selling, general and administrative expenses for the remainder of fiscal
1998 to decrease slightly in absolute dollars.

INTEREST INCOME AND OTHER EXPENSES, NET

     The  Company  generated  net  interest  income and other  expenses  of $0.2
million  for the second  quarter  and $1.2  million  for the first six months of
fiscal 1998,  compared to $0.9 million and $1.9 million,  respectively,  for the
corresponding  periods of fiscal 1997. The decreases in net interest  income and
other  expenses  over prior periods were  primarily  due to lower  interest rate
earned on the purchase of  additional  tax exempt  securities  and lower average
investment balances.

INCOME TAXES

     The Company's  provision for income taxes for the second  quarter and first
six months of fiscal 1998 and 1997 is computed based on the projected annualized
effective  tax  rate  of  34.0%  and  33.5%  respectfully,   applied  to  fiscal
year-to-date  book income.  The projected  effective tax rate for fiscal 1998 is
expected  to be less than the  combined  federal  and state  statutory  rate due
primarily to the projected benefit of the Company's foreign sales corporation.

LIQUIDITY AND CAPITAL RESOURCES

     Net cash  provided  by  operating  activities  was $15.1  million  and $4.6
million for the six months ended April 30, 1998 and 1997, respectively. Net cash
flows  provided by operating  activities for the six months ended April 30, 1998
were primarily from net income of $18.0 million,  depreciation  and amortization
of $8.4 million and a net increase in accounts payable, accrued liabilities, and
income  taxes  payable of $4.6  million,  partially  offset by a net increase in
restricted cash,  accounts  receivable,  inventories and other current assets of
$16.0 million.

<PAGE>

Investing  activities  used $71.2  million and provided $3.4 million for the six
months ended April 30, 1998 and 1997,  respectively.  In the first six months of
fiscal  1998,  the  Company  experienced  a net  increase  of $62.7  million  in
short-term  and  long-term  investments  while also  purchasing  $5.4 million of
property and equipment.  Net cash used by financing activities was $10.8 million
and  provided  $0.8  million  for the six months  ended April 30, 1998 and 1997,
respectively.  The use of cash in the  first  six  months  of  fiscal  1998  was
primarily due to the Company  repurchasing 500,000 of its shares of common stock
at a cost of approximately  $12.8 million.  The purpose of the repurchase was to
offset potential future dilution resulting from increases in the Company's stock
option plan and employee stock purchase plan.

     As of April 30,  1998,  the Company had  working  capital of  approximately
$235.0  million,  including cash and short-term  investments of $149.2  million,
$60.8  million of accounts  receivable  and $52.7  million of  inventories.  The
Company  expects  accounts  receivable  to continue to  represent a  significant
portion of working capital.  The Company believes that because of the relatively
long manufacturing cycles of many of its testers and the new products it has and
plans to continue to introduce, investments in inventories will also continue to
represent a significant portion of working capital.  Significant  investments in
accounts  receivable  and  inventories  subject the Company to increased  risks,
including  uncollectability  of receivables  and write-offs of both hardware and
software  inventories,  which could  materially  adversely  affect the Company's
business,   financial  condition  and  results  of  operations.   Total  current
liabilities  of $37.8 million as of October 31, 1997  increased to $41.6 million
as of April 30, 1998.  The $3.8 million  increase was due primarily to increases
in accrued liabilities by $4.0 million, offset by a decrease in accounts payable
of $0.2 million.

     The Company's principal sources of liquidity as of April 30, 1998 consisted
of  approximately  $65.8  million  of  cash  and  cash  equivalents,  short-term
investments  of $78.3  million and $20.0 million  available  under the Company's
unsecured working capital line of credit expiring on July 24, 1998. In addition,
the Company has $28.0 million of available-for-sale  investments,  classified as
long-term. As of April 30, 1998, no amounts were outstanding under the unsecured
line of credit.  Additionally,  as of April 30, 1998,  the Company has operating
leases for facilities and test and other equipment totaling  approximately $46.0
million.

     The  Company is  currently  in the  process of  assessing  and  testing the
software  components of its products for year 2000 compliance.  The Company does
not believe that its products contain  undetected  errors or defects  associated
with year 2000 date  functions that may result in material costs to the Company,
including repair costs and costs incurred in litigation due to any such defects,
however,  there can be no  assurance  that such  errors or defects do not exist.
Although the Company is not aware of any material  operational issues associated
with preparing its internal systems for the year 2000, there can be no assurance
that the Company will not experience serious unanticipated negative consequences
and/or  material costs caused by undetected  errors or defects in the technology
used in its internal  operating  systems,  which are composed  predominately  of
third party software and hardware technology.

     Many commentators have stated that a significant  amount of litigation will
arise out of year 2000 compliance issues. Because of the unprecedented nature of
such  litigation,  there  can be no  assurance  that  the  Company  will  not be
materially adversely affected by claims related to year 2000 compliance.


RISK FACTORS

     The Company's  results of operations  are affected by a variety of factors,
including the following:

Fluctuations in Operating Results

     The Company's  operating results have in the past fluctuated  significantly
and will in the future fluctuate significantly, due to a variety of factors. The
Company's  operating  performance  from the first quarter of fiscal 1993 through
the third quarter of fiscal 1996 produced sequential  quarter-to-quarter  growth
in both net sales and net


<PAGE>

income,  culminating  in net  sales of $67.2  million  and net  income  of $11.5
million for the third  fiscal  quarter of 1996.  The Company  then  reported two
consecutive  quarters of decreasing net sales and  decreasing  net income,  with
fourth  quarter of fiscal 1996 net sales of $44.2 million and net income of $4.3
million,  and first quarter of fiscal 1997 sales of $40.2 million and net income
of $1.0 million.  During the subsequent four consecutive  fiscal quarters,  from
the second  quarter of fiscal 1997 through the first quarter of fiscal 1998, the
Company's  net sales and net income  increased  sequentially,  excluding the net
loss reported in the third fiscal quarter of 1997 due to a pre-tax charge for in
process  research and development  related to an  acquisition.  With the charge,
results  for the third  quarter  of  fiscal  1997  reflected  a net loss of $0.9
million.  Without the charge,  third  quarter  fiscal 1997 net income would have
been $4.4 million.  At the peak of this four quarter  period ending in the first
quarter of 1998,  net sales for the first quarter  reached $82.4 million and net
income reached $9.2 million. In the second quarter of fiscal 1998, net sales and
net income  decreased from the first quarter of 1998. The decreases prior to the
fourth  quarter of fiscal 1997 were due primarily to a  significant  weakness in
the ATE market  which  materially  adversely  affected the  Company's  business,
financial condition and results of operations and several other companies in the
semiconductor  equipment  industry.  The ATE  industry  returned  to a  capacity
expansion  mode in fiscal 1997,  resulting in  sequential  increases in revenues
during the  second,  third,  and fourth  quarters  of fiscal  1997 and the first
quarter of fiscal 1998.  However in the second quarter of fiscal 1998, net sales
decreased 9% from the prior quarter due to an industry  slowdown and the Company
believes  that in the short term its net sales and net income,  if any,  will be
lower  sequentially  than in prior periods.  There can be no assurance they will
not continue to decrease in subsequent quarters.  Other factors that have caused
and will continue to cause the Company's results to fluctuate include the timing
of new product  announcements  and  releases by the Company or its  competitors,
market  acceptance  of new  products  and  enhanced  versions  of the  Company's
products,  manufacturing  inefficiencies  associated  with  the  start up of new
products,  changes in pricing or payment  terms and cycles by the  Company,  its
competitors,  customers or  suppliers,  manufacturing  capacity,  the ability to
volume produce systems and meet customer  requirements,  inventory  obsolescence
and writeoffs,  patterns of capital spending by customers, delays, cancellations
or reschedulings of orders due to customer financial  difficulties or otherwise,
changes in  overhead  absorption  levels due to changes in the number of systems
manufactured,  the timing and shipment of orders,  availability  of  components,
subassemblies and services, expenses associated with acquisitions and alliances,
product  discounts,   customization  and  reconfiguration  of  systems,  product
reliability,  the  proportion of direct sales and sales  through third  parties,
including distributors and original equipment manufacturers, the mix of products
sold, the length of manufacturing and sales cycles,  cyclicality or downturns in
the  semiconductor  market and the markets  served by the  Company's  customers,
natural disasters,  political and economic  instability,  regulatory changes and
outbreaks of hostilities.  The Company  presently  intends to introduce many new
products and product enhancements in the future, which will affect its operating
results, financial condition and business. The Company's gross margins on system
sales have varied  significantly,  and will continue to vary significantly based
on a variety  of  factors,  including  manufacturing  efficiencies,  pricing  by
competitors or suppliers,  product sales mix,  reserves,  production volume, new
product  introductions,  product reliability,  the rate of capacity utilization,
customization and  reconfiguration of systems,  international and domestic sales
mix and field service margins. In addition,  new and enhanced products typically
have lower gross  margins in the early  stages of  commercial  introduction  and
production.  While the Company has recorded and  continues to record  allowances
for  estimated  sales  returns  and  uncollectible  accounts,  there  can  be no
assurance that such estimates regarding allowances will be adequate.

Limited Systems Sales; Backlog

     The Company derives a substantial portion of its net sales from the sale of
a relatively small number of systems that typically range in price from $350,000
to $3.6 million,  excluding the EPRO memory products,  for which the price range
is typically  below $50,000.  As a result,  the timing of recognition of revenue
from a single  transaction could have a significant  impact on the Company's net
sales and operating results for a particular period. The Company's net sales and
operating results for a particular period could be materially adversely affected
if an  anticipated  order for even one system is not  received in time to permit
shipment during that period. The Company's backlog at the beginning of a quarter
typically does not include all orders  necessary to achieve the Company's  sales
objectives  for that  quarter.  In  addition,  orders in backlog  are subject to
cancellation,  delay,


<PAGE>

deferral  or   rescheduling   by  a  customer  with  limited  or  no  penalties.
Consequently,  the Company's net sales and operating  results for a quarter have
in the past and will in the future depend upon the Company  obtaining orders for
systems  to be  shipped  in  the  same  quarter  that  the  order  is  received.
Furthermore,  products generating most of the Company's net sales continue to be
shipped  near the end of each  quarter.  Accordingly,  the failure to receive an
anticipated  order or a delay or  rescheduling  in a shipment  near the end of a
particular  period due,  for  example,  to an order  cancellation,  a delay by a
customer, manufacturing, technical, reliability or other difficulties, including
difficulties  relating to customization and  reconfiguration of systems, a delay
in the  supply  of  components,  subassemblies  or  services  or a delay  due to
competitive or economic  factors,  may cause net sales in a particular period to
fall significantly below the Company's expectations, which could have a material
adverse effect upon the Company's  business,  financial  condition or results of
operations.  The relatively long manufacturing  cycle of many of its testers has
caused and could  continue  to cause  future  shipments  of such  products to be
delayed from one quarter to the next,  which could  materially  adversely affect
the  Company's   business,   financial   condition  or  results  of  operations.
Furthermore, announcements by the Company or its competitors of new products and
technologies could cause customers to defer or cancel purchases of the Company's
existing  systems,  which  could  also  have a  material  adverse  effect on the
Company's business,  financial condition or results of operations. The impact of
these and other  factors on the  Company's  sales and  operating  results in any
future period cannot be forecasted  with  certainty.  In addition,  the need for
continued significant  expenditures for research and development,  marketing and
other  expenses for new  products,  capital  equipment  purchases  and worldwide
training and customer  service and support,  among other  factors,  will make it
difficult  for the  Company  to  reduce  its  significant  fixed  expenses  in a
particular  period if the Company's net sales goals for such period are not met.
Accordingly,  there can be no assurance  that the Company will be  profitable or
that it will not sustain losses in future  periods.  Due to all of the foregoing
factors,  it is likely  that in some  future  quarter  the  Company's  operating
results will be below the  expectations of public market analysts and investors.
In such  event,  the  price of the  Company's  Common  Stock  may be  materially
adversely affected.

Cyclicality of Semiconductor Industry

     The Company's business and results of operations depend in significant part
upon the capital  expenditures of manufacturers of semiconductors  and companies
which  specialize  in  contract  packaging  and/or  testing  of  semiconductors,
including  manufacturers  and  contractors  that are  opening  new or  expanding
existing fabrication facilities, or upgrading existing equipment,  which in turn
depend upon the current and  anticipated  market demand for  semiconductors  and
products   incorporating   semiconductors.   Historically   and  recently,   the
semiconductor  industry  has been  highly  cyclical  with  recurring  periods of
oversupply, which often have had a severe effect on the semiconductor industry's
demand for test equipment,  including the systems  manufactured  and marketed by
the Company.  The Company  believes  that the markets for newer  generations  of
semiconductors will also be subject to similar fluctuations.  The Company has in
the past experienced  shipment delays,  delays in commitments and purchase order
restructurings  by  several  of its  customers  and  anticipates  that  this may
continue to occur in the future. Accordingly,  the Company can give no assurance
that it will be able to achieve or maintain  its current or prior level of sales
or rate of growth.  Through the first three  quarters of 1997, the Company's net
sales,  gross  margins  and net income were  significantly  below the net sales,
gross  margins and net income,  respectively,  of the  comparable  prior  year's
quarterly results.  In the fourth quarter of 1997 and the first quarter of 1998,
the  Company's net sales and net income were  significantly  above the net sales
and net  income of the  fourth  quarter  of 1996 and the first  quarter of 1997,
respectively.  However,  in the second quarter of fiscal 1998, net sales and net
income  decreased  over the first quarter of fiscal 1998,  the Company  believes
they will decrease further in the short term, and there can be no assurance that
they will not  decrease  from  prior  quarter  or prior  year  amounts in future
quarters.  The Company  anticipates that a significant portion of new orders may
depend upon demand from semiconductor device manufacturers building or expanding
fabrication  facilities  and  new  device  testing  requirements  that  are  not
addressable by currently installed test equipment, and there can be no assurance
that such demand will develop to a significant  degree,  or at all. In addition,
any factor adversely affecting the semiconductor industry or particular segments
within the semiconductor  industry may adversely affect the Company's  business,
financial  condition  or  results  of  operations.  Therefore,  there  can be no
assurance  that  the  Company's  operating  results  will  not  continue  to  be
materially  adversely  affected if downturns  or slowdowns in the


<PAGE>

semiconductor  industry continue or occur again in the future. Company net sales
to the Asia Pacific region accounted for  approximately  68%, 63%, 66%, 58%, and
45% of total net sales in the second  quarter and first half of fiscal 1998, and
fiscal years 1997,  1996, and 1995, and thus are subject to the risk of economic
instability in that region that might materially adversely affect the demand for
the Company's products.  The current Asian financial crisis has contributed to a
widespread  uncertainty  and a  slowdown  in the  semiconductor  industry.  This
slowdown in the  semiconductor  industry  has  resulted in reduced  spending for
semiconductor  capital  equipment,  including ATE which the Company sells.  This
industry  slowdown  has had and may  continue  to have an adverse  impact on the
Company's product backlog, balance sheet and results of operations.

Management of Fluctuations in Operating Results

     The  Company  has over  the  last  several  years  experienced  significant
fluctuations  in its  operating  results.  Since  1993,  the Company has overall
significantly  increased the scale of its operations to support  increased sales
levels and has expanded its operations to address  critical  infrastructure  and
other requirements,  including the hiring of additional  personnel,  significant
investments in research and  development  to support  product  development,  the
March 1995  acquisition of EPRO, the Company's  establishment of a joint venture
with Innotech,  Inc.,  the Company's  acquisition in July 1997 of the assets and
certain  liabilities of Test Systems  Strategies,  Inc. ("TSSI"),  the Company's
acquisition  in August 1997 of a software  product  line from Zycad  Corporation
("Zycad")  and the June 1998  acquisition  of assets and  assumption  of certain
liabilities from Heuristics Physics  Laboratories,  Inc. ("HPL").  However,  the
Company has during certain historical periods,  as discussed above,  experienced
revenue  declines and reductions in its  operations.  These  fluctuations in the
Company's  sales  and  operations  have  placed  a  considerable  strain  on its
management,   financial,   manufacturing  and  other  resources.   In  order  to
effectively  deal with the  changes  brought  on by the  cyclical  nature of the
industry,  the Company has been  required to implement  and improve a variety of
highly flexible operating,  financial and other systems, procedures and controls
capable of expanding or  contracting  consistent  with the  Company's  business.
There can be no  assurance  that any  existing  or new  systems,  procedures  or
controls will be adequate to support fluctuations in the Company's operations or
that its systems,  procedures  and controls  will be  designed,  implemented  or
improved  in a cost  effective  and timely  manner.  Any  failure to  implement,
improve and expand or  contract  such  systems,  procedures  and  controls in an
efficient  manner at a pace consistent with the Company's  business could have a
material  adverse  effect on the  Company's  business,  financial  condition  or
results of operations.

Expansion of Operations

     Currently,  the Company is devoting and will continue to devote significant
resources to the development of new products and technologies.  During 1998, the
Company is  conducting  evaluations  of these new products and will  continue to
invest  significant   additional  resources  in  plant  and  equipment,   leased
facilities,  inventory,  personnel and other costs, to begin or prepare to begin
production of these  products and to provide the marketing,  administration  and
after-sales  service and support,  if any, required to service and support these
new hardware and software products.  Accordingly, there can be no assurance that
gross profit margin and inventory  levels will not be adversely  impacted in the
future by start-up costs associated with the initial production and installation
of these new product lines.  These  start-up costs include,  but are not limited
to, additional manufacturing overhead, additional inventory and warranty reserve
requirements and the creation of after-sales service and support  organizations.
In  addition,  the  increases in inventory on hand for new hardware and software
product  development  and  customer  support  requirements  increase the risk of
inventory  write-offs.  Additionally,  there can be no assurance  that operating
expenses will not increase,  relative to sales, as a result of adding additional
marketing  and  administrative  personnel,  among  other  costs,  to support the
Company's additional products. If the Company is unable to achieve significantly
increased  net  sales  or its  sales  fall  below  expectations,  the  Company's
operating  results  will  be  materially  adversely  affected.  There  can be no
assurance  that net sales will  increase or remain at recent  levels or that any
new products will be successfully commercialized.


<PAGE>

Limited Sources of Supply; Reliance on Subcontractors

     Certain   components,   subassemblies   and  services   necessary  for  the
manufacture  of the  Company's  testers  are  obtained  from a limited  group of
suppliers.  The Company does not maintain  long-term supply agreements with most
of its vendors and purchases most of its components  and  subassemblies  through
individual  purchase  orders.  The  manufacture  of  certain  of  the  Company's
components and subassemblies is an extremely  complex process.  The Company also
relies on outside vendors to manufacture  certain  components and  subassemblies
and to provide  certain  services.  The Company  has  recently  experienced  and
continues to experience significant reliability, quality and timeliness problems
with several critical  components.  In addition,  the Company and certain of its
subcontractors  periodically  experience  significant  shortages  and  delays in
delivery of various components and subassemblies. There can be no assurance that
these or other  problems  will not continue to occur in the future with these or
the Company's other suppliers or outside subcontractors.  The Company's reliance
on  a  limited  group  of  suppliers  and  the  Company's  reliance  on  outside
subcontractors  involve several risks, including a potential inability to obtain
an adequate  supply of  required  components,  subassemblies  and  services  and
reduced  control over the price,  timely  delivery,  reliability  and quality of
components,  subassemblies  and  services.  Shortages,  delays,  disruptions  or
terminations of the sources for these components and  subassemblies  has delayed
and could continue to delay shipments of the Company's  systems and could have a
material  adverse  effect on the  Company's  business,  financial  condition  or
results of operations.  Any continuing  inability to obtain  adequate  yields or
timely  deliveries or any other  circumstance  that would require the Company to
seek alternative sources of supply or to manufacture such components  internally
could  have a  material  adverse  effect on the  Company's  business,  financial
condition or results of operations. Such delays, shortages and disruptions would
also damage relationships with current and prospective customers and could allow
competitors to penetrate such customer accounts.  There can be no assurance that
the  Company's  internal  manufacturing  capacity and that of its  suppliers and
subcontractors will be sufficient to meet customer requirements.

Highly Competitive Industry

     The automatic test  equipment  ("ATE")  industry is intensely  competitive.
Because of the  substantial  investment  required  to develop  test  application
software  and  interfaces,  the  Company  believes  that  once  a  semiconductor
manufacturer  has selected a particular ATE vendor's tester,  the  semiconductor
manufacturer  is  likely  to use  that  tester  for a  majority  of its  testing
requirements  for the  market  life of that  semiconductor  and,  to the  extent
possible,  subsequent  generations of similar products. As a result, once an ATE
customer  chooses  a  system  for the  testing  of a  particular  device,  it is
difficult  for  competing  vendors  to  achieve  significant  ATE  sales to such
customer for similar use.  The  inability of the Company to penetrate  any large
ATE  customer  or achieve  significant  sales to any ATE  customer  could have a
material  adverse  effect on the  Company's  business,  financial  condition  or
results of operations.

     The Company faces substantial  competition  throughout the world, primarily
from ATE manufacturers  located in the United States,  Europe and Japan, as well
as several of the Company's  customers.  Many of the Company's  competitors have
substantially  greater  financial  and  other  resources  with  which to  pursue
engineering,  manufacturing,  marketing  and  distribution  of  their  products.
Certain of the Company's  competitors have recently  introduced or announced new
products with certain performance or price  characteristics equal or superior to
certain products currently offered by the Company.  The Company believes that if
the ATE  industry  continues  to  consolidate  through  strategic  alliances  or
acquisitions,   the  Company  will  continue  to  face  significant   additional
competition  from larger  competitors that may offer more complete product lines
and services  than the Company.  The  Company's  competitors  are  continuing to
improve the performance of their current products and to introduce new products,
enhancements  and new  technologies  that provide improved cost of ownership and
performance   characteristics.   New  product  introductions  by  the  Company's
competitors  could  continue  to cause a  decline  in  sales  or loss of  market
acceptance of the Company's existing products.  Moreover,  increased competitive
pressure could continue to lead to intensified  price-based  competition,  which

<PAGE>

could materially adversely affect the Company's business, financial condition or
results of operations.  The Company has  experienced and continues to experience
significant price competition in the sale of all of its testers. In addition, at
the  end  of  a  product   life  cycle  and  as   competitors   introduce   more
technologically  advanced  products,  pricing  pressures  typically  become more
intense as the Company has  experienced  with sales of its older  products.  The
Company believes that to be competitive,  it must continue to expend significant
financial  resources  in order to,  among  other  items,  invest in new  product
development  and  enhancements  and to  maintain  customer  service  and support
centers  worldwide.  There can be no assurance  that the Company will be able to
compete successfully in the future.

Rapid Technological Change; Importance of Timely Product Introduction

     The ATE  market is subject to rapid  technological  change and new  product
introductions and enhancements and related software tools. The Company's ability
to be  competitive  in this  market  will  depend in  significant  part upon its
ability to successfully develop and introduce new hardware and software products
and  enhancements  and related  software tools with greater features on a timely
and cost-effective  basis,  including the products under development acquired in
the EPRO  merger and the TSSI,  Zycad and HPL  product  line  acquisitions.  The
Company's  customers  require  testers and  software  products  with  additional
features and higher performance and other capabilities. The Company is therefore
required to enhance  the  performance  and other  capabilities  of its  existing
systems and software  products and related  software  tools.  Any success by the
Company in  developing  new and enhanced  systems and software  products and new
features to its existing systems and software products depends upon a variety of
factors, including product selection, timely and efficient completion of product
design,  implementation of manufacturing  and assembly  processes and coding and
debugging of software,  product  performance  and  reliability  in the field and
effective sales and marketing.  Because new product development commitments must
be made well in advance of sales,  new product  decisions must  anticipate  both
future demand and the  availability of technology to satisfy that demand.  There
can  be  no  assurance  that  the  Company  will  be  successful  in  selecting,
developing,  manufacturing  and marketing new hardware and software  products or
enhancements  and  related  software  tools.  The  inability  of the  Company to
introduce new products and related software tools that contribute  significantly
to net sales,  gross margins and net income would have a material adverse effect
on the Company's  business,  financial  condition or results of operations.  New
product or technology  introductions by the Company's  competitors could cause a
decline  in  sales  or loss  of  market  acceptance  of the  Company's  existing
products.  In addition,  new product  introductions by the Company may cause the
Company's  customers to curtail  purchases  of the older  products and delay new
product purchases.  Any decline in demand for the Company's hardware or software
products,  compared  to the  demand  anticipated  by the  Company,  could have a
materially  adverse  affect on the Company's  business,  financial  condition or
results of operations.

<PAGE>

     Significant  delays  can occur  between  a  system's  introduction  and the
commencement by the Company of volume production of such system. The Company has
in the past  experienced and continues to experience  significant  delays in the
introduction,  volume  production  and sales of its systems and related  feature
enhancements,   including  new  models  within  the  digital,  mixed-signal  and
non-volatile  memory  product  lines,  due to  technical,  manufacturing,  parts
shortages,  component  reliability  and other  difficulties  and may continue to
experience  similar delays in the future. As a result,  certain of the Company's
significant customers have experienced significant delays in receiving and using
certain of the Company's  testers in production.  There can be no assurance that
these or additional  difficulties  will not continue to arise in the future with
respect  to the  Company's  systems  or that  such  delays  will not  materially
adversely affect customer relationships and future sales. Moreover, there can be
no assurance  that the Company will not  encounter  these or other  difficulties
that could  delay  future  introductions  or volume  production  or sales of its
systems or enhancements and related software tools. The Company has incurred and
may   continue  to  incur   substantial   unanticipated   costs  to  ensure  the
functionality  and  reliability of its testers and to increase  feature sets. If
the Company's systems continue to have  reliability,  quality or other problems,
or  the  market  perceives  certain  of the  Company's  products  to be  feature
deficient,  reduced orders,  higher  manufacturing  costs,  delays in collecting
accounts  receivable  and higher  service,  support and  warranty  expenses,  or
inventory write-offs,  among other items, could result. The Company's failure to
have a competitive  tester and related software tools available when required by
a semiconductor  manufacturer could make it substantially more difficult for the
Company to sell testers to that  manufacturer for a number of years. The Company
believes that the continued acceptance,  volume production,  timely delivery and
customer satisfaction of its newer digital, mixed signal and non-volatile memory
testers are of critical importance to its future financial results. As a result,
an inability to correct any  technical,  reliability,  parts  shortages or other
difficulties  associated  with the Company's  systems or to manufacture and ship
the  Company's  systems on a timely basis to meet  customer  requirements  could
damage relationships with current and prospective customers and would materially
adversely  affect the  Company's  business,  financial  condition  or results of
operations.

Customer Concentration; Lengthy Sales Cycle

     One customer (a distributor in the Asia Pacific Region)  accounted for 40%,
34%, 30%, 25% and 17% of the Company's net sales in the second quarter of fiscal
1998 and in the first half of fiscal 1998 and fiscal years 1997,  1996 and 1995,
respectively.  Another  customer  accounted for 11% of net sales in fiscal 1995.
The  loss  of or any  reduction  in  orders  by this  or any  other  significant
customer,  including  losses or reductions due to continuing or other technical,
manufacturing  or reliability  problems with the Company's  products,  continued
slowdowns in the semiconductor  industry or in other industries that manufacture
products  utilizing  semiconductors,   could  materially  adversely  affect  the
Company's business,  financial condition or results of operations. The Company's
ability to maintain or  increase  its sales  levels in the future will depend in
significant  part  upon its  ability  to obtain  orders  from  existing  and new
customers and to manufacture  systems on a timely and cost-effective  basis, the
financial condition and success of its customers,  general economic  conditions,
and the Company's ability to meet increasingly  stringent  customer  performance
and other  requirements and shipment  delivery dates.  There can be no assurance
that the Company will be able to maintain or increase the level of its net sales
in the future or that the Company will be able to retain  existing  customers or
attract new ones.

     Sales of the Company's systems depend in significant part upon the decision
of a semiconductor  manufacturer  to develop and  manufacture new  semiconductor
devices  or to  increase  manufacturing  capacity.  As a  result,  sales  of the
Company's  testers are subject to a variety of factors  outside of the Company's
control.  In addition,  the decision to purchase a tester  generally  involves a
significant   commitment  of  capital,  with  the  attendant  delays  frequently
associated with significant capital  expenditures.  For these and other reasons,
the  Company's  systems have lengthy  sales cycles  during which the Company may
expend  substantial funds and management effort to secure a sale and subject the
Company to a number of significant risks.

Acquisitions

     The  Company  has  developed  in  significant   part  through  mergers  and
acquisitions  of other  companies and  businesses.  Prior to its initial  public
offering in 1993, the Company acquired two companies and the semiconductor  test
division of Tektronix,  Inc. In 1995, the Company acquired EPRO, a memory tester
company.  In July 1997,  the Company  acquired  the assets and  assumed  certain

<PAGE>

liabilities of TSSI and, in August 1997,  acquired the fault simulation and test
program  development  products  from Zycad.  In June 1998 the  Company  acquired
certain assets and assumed  certain  liabilities of HPL. The Company  intends in
the future to pursue  additional  acquisitions of  complementary  product lines,
technologies and businesses. Any future acquisitions by the Company could result
in potentially  dilutive issuances of equity securities,  the incurrence of debt
and contingent liabilities, expenditures and reserves, and amortization expenses
related to goodwill and other  intangible  assets (which may exceed the benefits
actually derived from the acquisitions), which could materially adversely affect
the  Company's  business,  financial  condition  or results of  operations.  The
Company's  charge for  in-process  research and  development  for the TSSI asset
acquisition  accounted for the Company's net loss for the third quarter of 1997.
In addition,  acquisitions involve numerous other risks,  including difficulties
in the assimilation of the operations,  personnel,  technologies and products of
the acquired  companies,  the  diversion of  management's  attention  from other
business  concerns,  risks of  entering  markets in which the  Company has no or
limited direct prior experience,  and the potential loss of key employees of the
acquired  company.  From  time to time,  the  Company  has  engaged  in and will
continue  to engage in  discussions  with  third  parties  concerning  potential
acquisitions of product lines,  technologies  and businesses.  In the event that
such an  acquisition  does occur,  however,  there can be no assurance as to the
effect  thereof on the  Company's  business,  financial  condition or results of
operations.

Dependence on Key Personnel

     The Company's future operating  results depend in significant part upon the
continued service of its key personnel,  none of whom are bound by an employment
or non-competition agreement. The Company's future operating results also depend
in significant part upon its ability to attract and retain qualified management,
manufacturing,  technical,  engineering  and  marketing  and sales  and  support
personnel.  Competition  for such  personnel  is  intense,  and  there can be no
assurance  that the Company will be successful  in attracting or retaining  such
personnel.  There may be only a limited  number of  persons  with the  requisite
skills to serve in these positions and it may be increasingly  difficult for the
Company to hire such  personnel  over time.  The loss of any key  employee,  the
failure of any key  employee to perform in his or her current  position,  or the
Company's  inability to attract and retain skilled employees,  as needed,  could
materially  adversely  affect the  Company's  business,  financial  condition or
results of operations.

International Sales

     International  sales accounted for approximately 80%, 74%, 70%, 67% and 55%
of total net sales for the  second  quarter  and first  half of fiscal  1998 and
fiscal  years  1997,  1996 and  1995,  respectively.  As a result,  the  Company
anticipates that international  sales will continue to account for a significant
portion of total net sales in the foreseeable future.  These international sales
will continue to be subject to certain  risks,  including  changes in regulatory
requirements, tariffs and other barriers, political and economic instability, an
outbreak  of  hostilities,   integration  of  foreign   operations  of  acquired
businesses,  foreign  currency  exchange rate  fluctuations,  difficulties  with
distributors, joint venture partners, original equipment manufacturers,  foreign
subsidiaries and branch operations, potentially adverse tax consequences and the
possibility of difficulty in accounts receivable collection. The Company is also
subject  to  the  risks  associated  with  the  imposition  of  legislation  and
regulations  relating to the import or export of  semiconductor  equipment.  The
Company  cannot  predict  whether  quotas,  duties,  taxes or other  charges  or
restrictions  will be implemented by the United States or any other country upon
the importation or exportation of the Company's  products in the future.  Any of
these  factors or the  adoption of  restrictive  policies  could have a material
adverse  effect on the  Company's  business,  financial  condition or results of
operations.  Company  net  sales  to  the  Asia  Pacific  region  accounted  for
approximately  68%,  66%,  66%,  58% and 45% of total  net  sales in the  second
quarter and first half of fiscal 1998 and fiscal years 1997, 1996, and 1995, and
thus are subject to the risk of economic  instability  in that region that might
materially adversely affect the demand for the Company's products.  Countries in
the Asia Pacific region,  including Japan, have recently experienced  weaknesses
in their currency,  banking and equity markets. These weaknesses could adversely
affect demand for the Company's products, the availability and supply of product
components to the Company, and ultimately the Company's  consolidated results of
operations.  The current Asian financial  crisis has contributed to a widespread
uncertainty and a slowdown in the semiconductor  industry.  This slowdown in the
semiconductor  industry  has  resulted  in reduced  spending  for  semiconductor
capital equipment, including ATE which the Company sells. This industry slowdown
has had  and may  continue to have an adverse  impact on the  Company's  product
backlog, balance sheet and results of operations.

<PAGE>

Importance of Japanese Market

     To date,  the  Company  has made  limited  sales of its systems to Japanese
semiconductor  manufacturers.   The  Japanese  semiconductor  market  is  large,
represents a substantial percentage of the worldwide semiconductor manufacturing
capacity,  and is difficult for foreign companies to penetrate.  The Company may
be at a competitive  disadvantage with respect to Japanese semiconductor capital
equipment  suppliers  that have  been  engaged  for some  time in  collaborative
efforts with Japanese semiconductor manufacturers. The Company believes that the
Japanese  companies with which it competes have a competitive  advantage because
of their  dominance of the Japanese market  segment.  The Company  believes that
increased  penetration  of the Japanese  market is  important  to its  financial
results  and intends to continue  to invest  significant  resources  in Japan in
order to meet this objective.  As part of its strategy to penetrate the Japanese
market,  the  Company  entered  into a joint  venture  agreement  with  Innotech
Corporation,  a local distributor of its products, and set up a local subsidiary
in Japan.  The Company  believes  that  Innotech is an important  element of its
strategy to increase its  presence in Japan.  If Innotech is not  successful  in
selling such systems or such agreement is terminated,  the Company's strategy to
increase product sales into the Japanese market would be adversely affected.  In
addition, in recent years, Japanese  semiconductor  manufacturers  substantially
reduced  their  level of capital  spending  on new  fabrication  facilities  and
equipment,  thereby  increasing  competitive  pressures in the  Japanese  market
segment.  There can be no assurance,  however,  that the Company will be able to
achieve  significant  sales to, or will be able to compete  successfully in, the
Japanese semiconductor market segment.

Proprietary Rights

     The Company  attempts to protect its  intellectual  property rights through
patents,  copyrights,  trademarks,  trade secrets and other measures,  including
confidentiality  agreements.  There can be no  assurance  that  others  will not
independently  develop  substantially  equivalent  proprietary  information  and
techniques  or otherwise  gain access to the  Company's  trade secrets and other
intellectual property rights or disclose such technology or that the Company can
meaningfully  protect its trade secrets or other  intellectual  property rights.
There  can be no  assurance  that  patents  owned  by the  Company  will  not be
invalidated,  deemed  unenforceable,  circumvented  or  challenged,  or that the
rights granted thereunder will provide competitive  advantages to the Company or
that any of the Company's  pending or future patent  applications will be issued
with claims of the scope sought by the Company,  if at all.  Furthermore,  there
can be no assurance that others will not develop similar products, duplicate the
Company's  products  or design  around  the  patents  owned by the  Company.  In
addition,  there can be no assurance that foreign intellectual  property laws or
the  Company's  agreements  will  protect the  Company's  intellectual  property
rights. Failure to protect the Company's intellectual property rights could have
a material adverse effect upon the Company's  business,  financial  condition or
results of operations. The Company has been involved in extensive, expensive and
time-consuming  reviews  of,  and  litigation  concerning,  patent  infringement
claims. In addition, the Company has at times been notified of other claims that
it may be infringing intellectual property rights possessed by third parties and
expects to continue to receive notice of such claims in the future.

     The European patent  application  relating to one of the  proprietary  CMOS
stabilization  methods  owned by the  Company was  abandoned  by the prior owner
after the  European  patent  examiner  cited  prior art.  This prior art was not
referenced in the corresponding United States patent application. Based upon its
review to date of the cited prior art and the  European  examiner's  objections,
and in part upon the  advice of  outside  patent  counsel  to the  Company,  the
Company believes that such prior art is unlikely to affect the validity or scope
of the claims of the United States issued patent.

     This prior art may,  however,  render invalid or  significantly  narrow the
scope of certain claims set forth in the United States patent  covering  another
of the Company's  proprietary CMOS stabilization  methods. The European examiner
referred to this prior art in the corresponding European patent application. The
European  application  was approved,  but with  narrower  claims than the United
States  patent.  This prior art was not referenced in the  corresponding  United
States patent.  Based in part upon the advice of outside patent counsel,  and on
the Company's  review of its current  products,  the Company  believes that this
patent will  continue to be valuable to the Company in  preventing  imitation of
the Company's  products  covered by this patent.  Additionally,  in mid-1992,  a
third party  suggested  that  certain  claims set forth in this patent  might be
invalid as a result of other alleged prior art. The Company  believes,  based in
part upon the advice of outside  patent  counsel,  that the prior art alleged by
the third party is less relevant  than the prior art  referenced by the European
examiner.  However,  there can be no  assurance  that any of the  aforementioned
prior  art or other  prior  art will not be  successfully  asserted  and used to

<PAGE>

invalidate or narrow the scope of any claim of the United States  patents or any
other patents or other patent applications of the Company.

     On November 13, 1997,  the Company  requested  the United States Patent and
Trademark  Office to re-examine the subject United States patent in light of the
two prior art  references.  On  January 7, 1998,  the United  States  Patent and
Trademark Office responded by granting the Company's request for re-examination.
The case is presently pending in the United States Patent and Trademark Office.

     Certain of the Company's  customers have received  notices of  infringement
from Jerome  Lemelson  alleging that the manufacture of  semiconductor  products
and/or  the  equipment  used to  manufacture  semiconductor  products  infringes
certain patents issued to such person. The Company was notified by a customer in
1990 and a different  customer in late 1994 that the Company may be obligated to
defend or settle  claims that the  Company's  products  infringe  such  person's
patents,  and,  in the event it is  subsequently  determined  that the  customer
infringes such person's  patents,  such customer  intends to seek  reimbursement
from the  Company  for  damages  and  other  related  expenses.  There can be no
assurance  that the Company will be  successful  in defending  current or future
patent  infringement  claims  or  claims  for  indemnification   resulting  from
infringement  claims. An award of damages,  injunctive relief or expenditures by
the Company of significant amounts in defending any such action could materially
adversely  affect the  Company's  business,  financial  condition  or results of
operations,  regardless  of the outcome of any  litigation.  With respect to any
claims,  the  Company  may seek to  obtain a license  under  the  third  party's
intellectual property rights. There can be no assurance, however, that a license
will be available on reasonable  terms or at all. The Company  could decide,  in
the  alternative,  to continue to resort to litigation to challenge such claims.
Such challenges have been and could continue to be extremely  expensive and time
consuming,  and  could  materially  adversely  affect  the  Company's  business,
financial  condition or results of operations,  regardless of the outcome of any
litigation.

Future Capital Needs

     The  development and  manufacture of new ATE systems and  enhancements  are
highly  capital  intensive.  In order to be  competitive,  the Company must make
significant investments in capital equipment, expansion of operations,  systems,
procedures  and  controls,  research and  development  and  worldwide  training,
customer  service and support,  among many other items. The Company expects that
cash on  hand  and  cash  equivalents,  including  restricted  cash,  short-term
investments,  funds  available under its bank line of credit,  anticipated  cash
flow from operations and equipment lease arrangements will satisfy its financing
requirements for at least the next 12 months.

Year 2000 Compliance

     Many currently  installed  computer systems and software products are coded
to accept only two-digit entries in the date code field. Beginning with the year
2000,  these  date  code  fields  may  need  to  accept  four-digit  entries  to
distinguish  21st century dates from 20th century dates.  As a result,  computer
systems  and/or  software  used by many  companies  will need to be  upgraded to
comply  with such  "Year  2000"  requirements.  Significant  uncertainty  exists
concerning the potential effects associated with such compliance. The Company is
currently in the process of assessing and testing the software components of its
products  for year  2000  compliance.  The  Company  does not  believe  that its
products  contain  undetected  errors or defects  associated with year 2000 date
functions  that may result in material  costs to the Company,  including  repair
costs and costs incurred in litigation due to any such defects,  however,  there
can be no assurance that such errors or defects do not exist.  Many commentators
have stated that a significant  amount of litigation will arise out of year 2000
compliance issues. Because of the unprecedented nature of such litigation, there
can be no assurance that the Company will not be materially  adversely  affected
by claims related to year 2000 compliance.

     Although  the  Company  is not  aware of any  material  operational  issues
associated with preparing its internal  systems for the year 2000,  there can be
no assurance that the Company will not experience serious unanticipated negative
consequences and/or material costs caused by undetected errors or defects in the
technology  used  in  its  internal  operating   systems,   which  are  composed
predominately of third party software and hardware technology.

<PAGE>

Volatility of Stock Price

     The Company  believes that factors such as  announcements  of  developments
related to the  Company's  business,  fluctuations  in the  Company's  financial
results,  general  conditions or developments in the  semiconductor  and capital
equipment industry and the general economy,  sales of the Company's Common Stock
into the marketplace, announcements of technological innovations or new products
or  enhancements by the Company or its  competitors,  developments in patents or
other intellectual property rights,  developments in the Company's relationships
with its customers and  suppliers,  or a shortfall or changes in revenue,  gross
margins or earnings or other financial results from analysts' expectations or an
outbreak  of  hostilities  or natural  disasters,  could  cause the price of the
Company's Common Stock to fluctuate, perhaps substantially.  In recent years the
stock  market in  general,  and the market  for  shares of small  capitalization
stocks in  particular,  including the Company,  have  experienced  extreme price
fluctuations,  which have often been  unrelated to the operating  performance of
affected  companies.  For example,  in fiscal 1997,  the price of the  Company's
Common Stock  ranged from a high of $55.00 to a low of $13.75.  In the first six
months of fiscal 1998, the price of the Company's Common Stock has ranged from a
high of $35.25 to a low of  $18.13.  There can be no  assurance  that the market
price of the Company's Common Stock will not continue to experience  significant
fluctuations  in the future,  including  fluctuations  that are unrelated to the
Company's performance.

Leverage

     In connection  with the sale in September 1997 of Convertible  Subordinated
Notes due 2002, the Company incurred $115 million of indebtedness which resulted
in a ratio of  long-term  debt to total  capitalization  at October  31, 1997 of
approximately 36%. As a result of this indebtedness, the Company's principal and
interest  obligations  has  increased  substantially.  The  degree  to which the
Company is leveraged could materially  adversely affect the Company's ability to
obtain financing for working  capital,  acquisitions or other purposes and could
make it more  vulnerable to industry  downturns and competitive  pressures.  The
Company's  ability to meet its debt service  obligations  will be dependent upon
the Company's future performance,  which will be subject to financial,  business
and other  factors  affecting the  operations of the Company,  many of which are
beyond its control.

Effects of Certain Anti-Takeover Provisions

     Certain  provisions of the Company's  Certificate of Incorporation,  equity
incentive  plans,  Bylaws and Delaware law may discourage  certain  transactions
involving a change in control of the Company. In addition to the foregoing,  the
Company's  classified  board of directors,  the  shareholdings  of the Company's
officers,  directors and persons or entities that may be deemed affiliates,  the
recent  adoption  of a  shareholder  rights plan and the ability of the Board of
Directors to issue "blank check"  preferred  stock without  further  stockholder
approval could have the effect of delaying,  deferring or preventing a change in
control of the Company and may  adversely  affect the voting and other rights of
holders of Common Stock.


<PAGE>

PART II.  - OTHER INFORMATION

Item 1. Legal Proceedings

     None

Item 2. Changes in Securities

     None

Item 3. Defaults upon Senior Securities

     None

Item 4. Submission of Matters to a Vote of Securityholders

     The following  proposals were voted upon by the Company's  stockholders  at
the Annual Meeting of Stockholders held on March 26, 1998:

1.   The  following  persons  were duly  elected as  directors of the Company to
     serve for a three-year term ending upon the year 2000 Annual  Stockholders'
     Meeting or until their successors are elected and qualified:
<TABLE>
<CAPTION>
                                           Votes For            Votes Withheld
                                           ----------           --------------
     <S>                                   <C>                      <C>
     Jos. C. Henkens ....................  20,427,773               20,942
     William G. Howard, Jr ..............  20,414,423               34,292
</TABLE>

2.   A proposal  to amend the  Company's  1993 Stock  Option  Plan (the  "Option
     Plan") to increase the maximum number of shares of Common Stock  authorized
     for issuance  over the term of the Option Plan from  4,125,001 to 4,625,001
     shares was approved as follows:

                In Favor                  Opposed                Withheld
               ----------                ---------               --------
               11,303,376                6,346,065                101,073

3.   A proposal to amend the Company's the Option Plan to implement an automatic
     share increase feature pursuant to which the number of shares available for
     issuance  under the Option  Plan will  automatically  increase on the first
     trading day of each fiscal year,  subject to a formulated cap, was approved
     as follows:

                In Favor                  Opposed                 Withheld
               ----------                ---------                --------
               11,195,030                6,450,246                 105,238

4.   A proposal to ratify the  election  of Ernst & Young LLP, as the  Company's
     independent  auditors  for the fiscal  year  ending  October  31,  1998 was
     approved as follows:

                In Favor                  Opposed                 Withheld
               ----------                ---------                --------
               20,335,613                   95,099                  18,003


Item 5. Other Information

     None

Item 6. Exhibits and Reports on Form 8-K

     (a) See Exhibit Index on page 22.

     (b)  A  report  on Form 8-K was  filed  on  February  23,  1998,  reporting
          earnings for first Quarter of fiscal 1998.


<PAGE>

                                   SIGNATURES

     Pursuant to the requirements of the Securities and Exchange Act of 1934, as
amended,  the  registrant  duly caused this Report to be signed on its behalf by
the undersigned thereunto duly authorized.


                                    CREDENCE SYSTEMS CORPORATION
                                ------------------------------------
                                            (Registrant)



         June 10, 1998                  /s/ DENNIS P. WOLF
      -------------------       ------------------------------------
             Date                       Dennis P. Wolf
                                        Senior Vice President,
                                        Chief Financial Officer




<PAGE>

                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT
NUMBER                                                                    PAGE
- -------                                                                   ----
<C>      <S>                                                               <C>

 2.11    Asset Purchase Agreement, dated as of June 1, 1998,
         between Credence Systems Corporation, a Delaware corporation
         and Yervant David Lepejian and Lawrence Kraus, as authorized 
         representatives of all of the shareholders of Heuristic Physics
         Laboratories, Inc., a California corporation.  The Company
         shall furnish supplementally a copy of any omitted schedules
         to the Commission upon request.                                   23

10.26    Lease Agreement between the Company and Pacific Realty
         Associates, L.P., dated April 10, 1998.                           54

27.1     EDGAR Financial Data Schedule                                     89


</TABLE>

<PAGE>

                                                                    EXHIBIT 2.11

                            ASSET PURCHASE AGREEMENT


               ASSET  PURCHASE  AGREEMENT  dated  as of  June 1,  1998  between
CREDENCE SYSTEMS CORPORATION,  a Delaware corporation  ("Purchaser") and YERVANT
DAVID  LEPEJIAN  and  LAWRENCE   KRAUS,  as  authorized   representatives   (the
"Shareholder  Representatives")  of all of the shareholders of Heuristic Physics
Laboratories, Inc., a California corporation (the "Company").

               WHEREAS,  the  Shareholder  Representatives  desire  to cause the
Company and its  wholly-owned  subsidiary,  Heuristic  Physics  Laboratories  of
Armenia,  a company  organized  under the laws of the  Republic of Armenia  (the
"Subsidiary" and, collectively with the Company, the "HPL Companies") to sell to
Purchaser,  and Purchaser desires to purchase from the HPL Companies, all of the
Assets (as defined in Section 1.1);

               WHEREAS,  the  Shareholder  Representatives  desire  to cause the
transfer  from the HPL  Companies to Purchaser  of, and  Purchaser is willing to
accept such transfer from the HPL Companies, the Assumed Liabilities (as defined
in Section 2.1);

               NOW,  THEREFORE,  in  consideration  of the mutual  promises  and
covenants set forth herein, the parties hereby agree as follows:

                                    ARTICLE I

                           PURCHASE AND SALE OF ASSETS
                           ---------------------------

               SECTION 1. 1 DESCRIPTION OF ASSETS TO BE ACQUIRED. Upon the terms
and subject to the conditions set forth in this  Agreement,  at the Closing Time
(as defined in Section 7.1), the Shareholder  Representatives agree to cause the
HPL Companies to convey, sell,  transfer,  assign, and deliver to Purchaser (and
any  wholly-owned  subsidiary of Purchaser  designated by Purchaser prior to the
Closing Time to receive  title to any of the  Assets),  and  Purchaser  (and any
wholly-owned  subsidiary  of  Purchaser  designated  by  Purchaser  prior to the
Closing Time to receive title to any of the Assets) shall  purchase from the HPL
Companies,  all right,  title,  and interest of the HPL  Companies in and to the
assets,  properties, and rights of the HPL Companies specifically referred to in
this Section 1. 1 (collectively,  the "Assets"). The Shareholder Representatives
represent and warrant to the Purchaser  that the Assets are all of the assets of
the HPL Companies used exclusively by the Automatic Test Equipment  Division and
the Design For Test  Division  of the HPL  Companies  (the  business  of the HPL
Companies'  Automatic Test  Equipment  Division and the Design For Test Division
being, the "Business"):

               (a) All interests in machinery, equipment,  instruments, computer
hardware and software, tooling, furniture,  fixtures, motor vehicles,  supplies,
repair and  maintenance  parts,  demonstration  units,  and other fixed  assets,
together with manufacturer or vendor warranties associated therewith,  listed on
Schedule 1.1 (a);

<PAGE>


               (b)  All   inventories  of  raw  materials   (together  with  any
manufacturer  or  vendor  warranties  associated  therewith),   work-in-process,
finished goods and supplies,  including scrapwork and rework, listed on Schedule
1.1 (b) (collectively, the "Inventory");

               (c) All  claims  and  rights  under  all  agreements,  contracts,
licenses, leases, franchises,  instruments,  documents, purchase and sale orders
and other executory commitments,  and all permits, consents, and certificates of
any regulatory,  administrative or other governmental  agency or body, listed on
Schedule 1.1 (c) hereto (collectively, the "Contracts");

               (d) All  interests  in the  real  property,  including  leasehold
interests (the "Leasehold Interests") listed on Schedule 1.1(d), and all related
rights,   easements   and  uses  which  benefit  or  burden  any  such  property
(collectively, the "Real Property");

               (e) All  right,  title  and  interest  to  trademarks,  trademark
rights, service marks, service mark rights, copyrights,  trade names, trade name
rights,  fictitious business names,  nondisclosure  agreements,  confidentiality
agreements,  assignment of inventions  agreements,  proprietary in formation and
inventions agreements, works of authorship,  inventions,  software, source code,
industrial  models,  industrial  designs,  utility  models and  certificates  of
invention,  designs emblems and logos,  trade secrets,  know-how,  manufacturing
formulae,  technical  information,   patents,  patent  applications,  mask  work
registrations,  inventions,  franchises, franchise rights, customer and supplier
lists together with the goodwill associated  therewith and all other proprietary
rights,  information  and processes,  in each case,  related  exclusively to the
Business,  all of  which  are  listed  on  Schedule  1.1(e)  (collectively,  the
"Proprietary Rights");

               (f)   All accounts and  notes  receivable  of the  HPL  Companies
relating  exclusively to the Business,  all of which are listed on Schedule 1(f)
(collectively, the "Accounts");

               (g)  All  original  books  of  account,  general  ledgers,  sales
invoices, purchase orders, accounts payable and payroll records, tax returns and
supporting  schedules,  drawings,  files, papers, and all other records relating
exclusively to the Business and duplicates of all of the foregoing relating (but
not exclusively relating) to the Business (the "Records");

               (h) All rights under express or implied warranties from suppliers
of the Business only to the extent such warranties relate to the Business;

               (i) All of the causes of action, judgments, and claims or demands
of whatever kind or  description  arising out of the activities of the Business,
but only to the extent such causes of action, judgments, and claims or documents
relate to the Business; and

               (j)  All goodwill of the Business (the "Goodwill").
<PAGE>


               SECTION  1.2 NON  ASSIGNMENT  OF  CERTAIN  ASSETS.  Neither  this
Agreement nor any action taken  pursuant to its provisions  shall  constitute an
assignment  if such  assignment  would  constitute  a breach of the terms of any
agreement or result in the loss or diminution or any rights  thereof;  provided,
however,  that in each such  case,  the  Shareholder  Representatives  shall use
their best efforts to obtain the consent to an assignment to Purchaser.  If such
consent is not obtained by the Closing  Time,  the  Shareholder  Representatives
shall  cooperate  with  Purchaser in any  arrangement  designed for Purchaser to
perform  the HPL  Companies'  obligations  with  respect to such Asset after the
Closing  Time and for  Purchaser  to receive the  benefits  under any such Asset
after the Closing Time,  which  arrangements  may include  enforcement,  for the
account and  benefit of  Purchaser,  of any and all rights of the HPL  Companies
against any other person arising out of the breach or cancellation by such other
person or otherwise,  all of such actions of the Shareholder  Representatives to
be at  the  direction  and  expense  of  the  Shareholder  Representatives.  The
Shareholder   Representatives  shall  reimburse  Purchaser  for  all  reasonable
documented costs and expenses,  including increased obligations,  resulting from
an inability of Purchaser to receive the benefits of any such assignment.

                                   ARTICLE II

                              LIABILITIES OF SELLER
                              ---------------------

               SECTION  2.1  ASSUMED  LIABILITIES.  Purchaser  hereby  agrees to
assume,  satisfy,  or perform when due only those liabilities and obligations of
the HPL  Companies  specifically  identified  on Schedule  2.1  attached  hereto
(collectively, the "Assumed Liabilities").

               SECTION  2.2  LIABILITIES  NOT  ASSUMED.  Other than the  Assumed
Liabilities,  Purchaser shall not assume,  nor shall Purchaser or any affiliate,
or any officer, director, employee, stockholder or agent of Purchaser, be deemed
to  have  assumed  or  guaranteed,  any  liabilities,  obligations,  litigation,
disputes,  debts,  payables,  counterclaims,  rights of set-off  or  return,  or
commitments or claims, whether such liabilities are contingent or otherwise,  or
direct or indirect,  of either of the HPL  Companies or any  shareholder  of the
Company in  existence  on or prior to or after the Closing  Time or based on any
events,  facts or  circumstances in existence prior to or in connection with the
sale of the Assets or in  connection  with or  arising  from any  activities  of
either of the HPL Companies or any services  provided by or goods or assets sold
by or products delivered by or to either of the HPL Companies (collectively, the
"Excluded Liabilities").


<PAGE>

                                  ARTICLE III

                                 PURCHASE PRICE
                                 --------------

               SECTION  3.1  CONSIDERATION.  Upon the terms and  subject  to the
conditions  contained in this Agreement,  in consideration for the Assets and in
full payment  therefor,  Purchaser will pay, or cause to be paid, to the Company
the Purchase Price set forth in Section 3.2.

               SECTION  3.2  PAYMENT  OF  PURCHASE  PRICE.  The  purchase  price
("Purchase  Price") to be paid or  payable by  Purchaser  to the  Company  shall
consist of cash in the amount of SEVEN MILLION NINE HUNDRED EIGHTY-TWO  THOUSAND
FIVE HUNDRED TWENTY-SIX Dollars ($7,982,526).

               SECTION 3.3 ROYALTY PAYMENTS.  In addition to the Purchase Price,
for a period of two (2) years following the date of the Closing, Purchaser shall
pay to the Shareholder  Representatives in the proportions set forth on Schedule
3.3  hereto  royalty  payments  in the  amount  equal  to ten  percent  (10%) of
Purchaser's  net sales to third  parties of products  derived  from those Assets
attributable  to the HPL  Companies  Design  For  Test  Division  (subject  to a
reasonable  reserve for returns).  Purchaser  shall  maintain  books and records
relating to its sales of such products and the Shareholder Representatives shall
be  entitled,  at their  own  expense,  to  audit  such  books  and  records  at
Purchaser's  place of business  during normal  business hours upon five (5) days
prior written notice.

                                   ARTICLE IV

                   REPRESENTATIONS AND WARRANTIES OF PURCHASER
                   -------------------------------------------

               Purchaser  hereby  represents  and  warrants  to the  Shareholder
Representatives that:

               SECTION  4.1  ORGANIZATION.   Purchaser  is  a  corporation  duly
organized, validly existing, and in good standing under the laws of the State of
Delaware.

               SECTION 4.2 AUTHORIZATION. Purchaser has full corporate power and
authority to enter into this Agreement,  to perform its  obligations  hereunder,
and to consummate the transactions  contemplated hereby. Purchaser has taken all
necessary  and  appropriate  corporate  action with respect to the execution and
delivery of this Agreement,  and this Agreement  constitutes a valid and binding
obligation of Purchaser,  enforceable in accordance  with its respective  terms:
(i)  except  as  limited  by  applicable  bankruptcy,   insolvency,  moratorium,
reorganization,   or  other  laws  affecting   creditors'  rights  and  remedies
generally,  (ii) except as may be required by the  applicable  provisions of the
bulk sales laws  provisions of applicable  state law, and ('iii')  except as the
indemnification  provisions  contained  in  this  Agreement  may be  limited  by
principles of public policy.


<PAGE>

                                    ARTICLE V

                        REPRESENTATIONS AND WARRANTIES OF
                        ---------------------------------
                         THE SHAREHOLDER REPRESENTATIVES
                         -------------------------------

               Except as set forth in the corresponding  sections or subsections
of the disclosure  letter delivered to Purchaser by Shareholder  Representatives
prior to entering into this Agreement  (the  "Disclosure  Letter"),  Shareholder
Representatives hereby represent and warrant to Purchaser:

               SECTION 5.1 ORGANIZATION; GOOD STANDING.

               The  HPL  Companies  are  corporations  duly  organized,  validly
existing  and in good  standing  under  the  laws of their  respective  state or
country of  organization,  and have the  corporate  power and  authority to own,
lease and operate their  properties and to carry on their businesses as the same
are now being conducted. The HPL Companies are qualified as foreign corporations
and are in good  standing  in such other  jurisdictions  in which the conduct of
their  business  or  their  ownership  or  leasing  of  property  requires  such
qualification.  Except as set forth on Schedule  5.1,  the HPL  Companies do not
own,  directly  or  indirectly,  any equity or other  ownership  interest  in or
control any corporation, partnership, joint venture or other entity. The Company
owns one hundred percent (100%) of the proprietary  interests in the Subsidiary.
All of the  proprietary  or equity  interests in the  Subsidiary are fully paid,
nonassessable and not subject to any lien or encumbrance.

               SECTION 5.2 AUTHORIZATION.

               Shareholder  Representatives  have full power and  authority,  on
behalf of all of the  shareholders of the Company,  to enter into this Agreement
and the  Related  Agreements  to  which  they  are a  party,  to  perform  their
obligations  hereunder  and  thereunder,  and  to  consummate  the  transactions
contemplated  hereby and thereby,  including  the execution and delivery of this
Agreement, general conveyances,  bills of sale, assignments, and other documents
and  instruments  evidencing  the  conveyance  of the  Assets  or  delivered  in
accordance with Section 7.2 hereunder (the "Closing  Documents") and the Related
Agreements to which they are a party. The HPL Companies have taken all necessary
and appropriate  corporate  action with respect to the execution and delivery of
any Closing  Documents and any Related  Agreements to which they are a party. No
other  corporate  proceedings  on the part of the HPL Companies are necessary to
authorize  this  Agreement  and the  Related  Agreements  or to  consummate  the
transactions  contemplated  hereby and thereby (other than,  with respect to the
sale of Assets,  the approval and adoption of this Agreement by the holders of a
majority  of the  outstanding  shares  of the HPL  Companies'  capital  stock in
accordance  with  California  law,  Armenian law and the HPL Companies'  charter
documents).  This Agreement and the Related Agreements to which they are a party
constitute  valid and binding  obligations of the  Shareholder  Representatives,
enforceable in accordance with their terms:  (i) except as limited by applicable

<PAGE>

bankruptcy,  insolvency,  moratorium,  reorganization,  or other laws  affecting
creditors' rights and remedies generally, and (ii) except as the indemnification
provisions  contained in this  Agreement  may be limited by principles of public
policy.

               SECTION 5.3 FINANCIAL STATEMENTS.

               (a) Each of the consolidated financial statements (including,  in
each  case,  any  related  notes  thereto)  delivered  by the HPL  Companies  to
Purchaser (the "Financial Statements") was prepared in accordance with generally
accepted  accounting  principles  applied on a consistent  basis  throughout the
periods involved and each fairly presented the consolidated  financial  position
of the Company and its  Subsidiaries as at the respective  dates thereof and the
consolidated results of its operations and cash flows for the periods indicated,
except that the unaudited  interim  financial  statements were or are subject to
normal and recurring year-end  adjustments which were not or are not expected to
be material in amount. The Company's revenue  recognition  policies with respect
to the Financial Statements have been made in accordance with generally accepted
accounting principles.  The Company maintains a standard system of accounting in
accordance with generally accepted accounting  principles.  All of the Company's
general ledgers,  books and records are located at the Company's principal place
of  business.  The  Company's  financial  reserves  are adequate to cover claims
incurred.

               (b) The projections  which the Company has delivered to Purchaser
have been  prepared  by the  Company in good faith and are based on  assumptions
that are reasonable.  Such  projections do not contain any assumptions  that are
false or  misleading  with respect to any material fact and do not omit to state
any material fact necessary in order to make such projections reasonable.

               SECTION 5.4 ABSENCE OF CERTAIN CHANGES AND EVENTS.

               1. Since  March 31,  1998,  there had not  occurred  any  adverse
change in the financial condition,  results of operation,  assets,  liabilities,
business,  or  prospects  of the Business or any  occurrence,  circumstance,  or
combination  thereof which  reasonably could have been expected to result in any
such adverse change.

               2. Since March 31, 1998, there has not been:

               a.  Any  event,  including,   without  limitation,   shortage  of
materials or  supplies,  fire,  explosion,  accident,  requisition  or taking of
property  by any  governmental  agency,  flood,  drought,  earthquake,  or other
natural event,  riot, act of God or a public enemy, or damage,  destruction,  or
other  casualty,  whether  covered by insurance or not, which has had an adverse
effect on the Business or the Assets or any such event which reasonably could be
expected to have such an effect on the Business or the Assets;

               b. Any  transaction  relating to or involving the Business (other
than the transactions contemplated herein) which was entered into or carried out
other than in the ordinary and usual course of business;

<PAGE>

               c. Any change made by the Company in its method of operating  the
Business or its accounting practices relating thereto;

               d. Any mortgage, pledge, lien, security interest,  hypothecation,
charge, or other encumbrance  imposed or agreed to be imposed on or with respect
to the Assets  other than liens  arising  with  respect to taxes not yet due and
payable,  and such minor  liens and  encumbrances,  if any,  which  arise in the
ordinary  course  of  business  and which do not  detract  from the value of the
Assets;

               e. Any sale,  lease, or disposition of, or any agreement to sell,
lease,  or  dispose  of  any  of  the  Assets,  other  than  sales,  leases,  or
dispositions  in the usual and ordinary  course of business and consistent  with
prior practice;

               f.  Any  modification,   waiver,  change,   amendment,   release,
rescission,  accord and satisfaction, or termination of, or with respect to, any
term,  condition,  or provision of any contract,  agreement,  license,  or other
instrument  to which either  Seller is a party and relating to or affecting  the
Business or the Assets, other than any satisfaction by performance in accordance
with the terms  thereof  in the  usual  and  ordinary  course  of  business  and
consistent with prior practice;

               g.   Any labor disputes or disturbances  materially  affecting in
an adverse  manner  the  Business or financial condition  of the HPL  Companies,
including,  without  limitation,  the filing of any petition or charge of unfair
labor practices with the National Labor Relations Board;

               h.   Any notice  (written or  unwritten)from any  engineering  or
technical  personnel  of the Business  that such  employee  has  terminated,  or
intends to terminate, such employee's employment in the Business;

               i.   Any waivers of any rights of substantial  value by either of
the HPL Companies related to the Business; or

               j.   Any purchase or lease of, or any  agreements  to purchase or
lease,  capital assets for the Business by either of the HPL Companies in excess
of $10,000 individually, or in excess of $50,000 in the aggregate.

               SECTION 5.5 UNDISCLOSED LIABILITIES.

               There are no debts,  liabilities or  obligations,  other than the
Excluded  Liabilities with respect to which the Assets are subject,  liquidated,
unliquidated,   accrued,  absolute,  contingent,  or  otherwise,  that  are  not
specifically  identified  in  the  Financial  Statements.  Neither  of  the  HPL
Companies has  guaranteed  the repayment of any  obligations of any third party,
including affiliates and affiliated entities or persons.


<PAGE>

               SECTION 5.6 PROPERTIES.

               The HPL Companies have good,  valid and  marketable  title to all
Assets,  tangible  and  intangible,  purported  to be owned by  either  of them,
including  the Assets  reflected on the  Financial  Statements.  All such Assets
purported to be owned by the HPL Companies are free and clear of all  mortgages,
liens,  charges,   security  interests  or  other  encumbrances  of  any  nature
whatsoever except as reflected in the Financial  Statements and except for liens
for current  taxes not  delinquent,  liens imposed by operation of law and liens
incurred in the ordinary course of business. All Assets, including machinery and
equipment,  owned,  leased or otherwise  used by the HPL  Companies  are in good
operating  condition  and repair,  reasonable  wear and tear  excepted,  and are
suitable and adequate for use in the ordinary  course of business and conform in
all  material  respects  to all  applicable  laws.  All leases  relating  to the
Business are binding,  valid and  enforceable  in  accordance  with their terms.
After the Closing  Time,  Purchaser  will be entitled to the  continued  use and
possession  of the  property  leased by them,  for the terms  specified  in such
leases and for the purposes for which such property is used. There is no pending
or  threatened  condemnation  or similar  proceeding  affecting  any of the real
property used in the Business owned or leased by the HPL Companies.

               SECTION 5.7 TAXES.

               1. No Tax is required to be withheld  pursuant to Section 1445 of
the Code as a result of the transfers contemplated by this Agreement.

               2. There are no liens for Taxes upon the Assets  except liens for
current  Taxes not yet due. The unpaid Taxes of the HPL  Companies do not exceed
the reserve for Taxes  established  on the books and records of the Company.  No
governmental entity (a "Taxing Authority") responsible for the imposition of any
Tax  (domestic or foreign),  has asserted  that the HPL  Companies owe any Taxes
other than as shown on their tax returns and paid with such returns.

               3. None of the assets (including the Assets) of the HPL Companies
(i) is  property  that is  required  to be treated as owned by any other  person
pursuant to the  so-called  "safe harbor  lease"  provisions  of former  Section
168(f)(8) of the Code, (ii) directly or indirectly secures any debt the interest
on which is tax exempt under Section  103(a) of the Code or (iii) is "tax exempt
use property" within the meaning of Section 168(h) of the Code. The transactions
contemplated  herein are not subject to the tax  withholding  provisions of Code
Section  3406,  or of  Subchapter  A of  Chapter  3 of the Code or of any  other
provision of law in any  jurisdiction.  The HPL Companies are not and have never
been members of a group permitted or required to file  consolidated  Tax returns
and are not  party to any  agreement  relating  to the  payment  or  sharing  of
liability for Taxes. The Company has not filed a consent under Section 341(f) of
the Code.

               4. For purposes of this Agreement,  "Tax" (and, with  correlative
meaning, "Taxes" and "Taxable") means (i) any net income,  alternative or add-on
minimum tax, gross income,  gross receipts,  sales,  use, ad valorem,  transfer,

<PAGE>

franchise,   profits,  license,   withholding,   payroll,  employment,   excise,
severance,  stamp,  occupation,  premium,  property,  environmental  or windfall
profit tax, custom, duty or other tax, governmental fee or other like assessment
or charge of any kind  whatsoever,  together  with any  interest or any penalty,
addition to tax or additional amount imposed by any Taxing Authority responsible
for the imposition of any such tax (domestic or foreign), (ii) any liability for
the payment of any amounts of the type  described  in (i) as a result of being a
member of an affiliated, consolidated, combined or unitary group for any Taxable
period  and  (iii) any  liability  for the  payment  of any  amounts of the type
described  in (i) or (ii) as a result of any  express or implied  obligation  to
indemnify any other person.

               SECTION 5.8 COMPLIANCE WITH LAWS.

               Each of the HPL Companies has complied and is in compliance  with
all applicable  foreign,  federal,  state, and local laws,  statutes,  licensing
requirements,  rules, and regulations,  and judicial or administrative decisions
applicable  to the  Business.  Each of the HPL  Companies  has been  granted all
licenses, permits (temporary and otherwise),  authorizations, and approvals from
foreign,  federal,  state, and local government  regulatory  bodies necessary to
carry on the Business as currently  conducted,  all of which are currently valid
and in full  force and  effect.  There is no claim,  action,  litigation,  order
investigation,  or  proceeding  pending or  threatened,  or notice  served  with
respect to any violation of any law,  ordinance,  order, writ, decree,  rule, or
regulation issued by any federal, state, local, or foreign court or governmental
agency or instrumentality applicable to the Business.

               SECTION 5.9 CONSENTS.

               The execution and delivery of this Agreement by the HPL Companies
does not, and the  performance of this  Agreement and the Related  Agreements by
the HPL Companies shall not,  require any consent,  approval,  authorization  or
permit of, or filing with or  notification  to, any  governmental  or regulatory
authority,  domestic or foreign,  or any other third party,  including licensors
and lenders, except for applicable requirements, if any, of the bulk sales laws.

               SECTION 5.10 PRODUCT LIABILITY.

               There are no defects in the design or technology  embodied in any
product of the Business which HPL Companies currently market or have marketed in
the past that impair or are likely to impair the  intended use of the product or
injure any consumer of the product or third party,  except that warranty  claims
may arise in the normal  course of business,  for products  shipped prior to the
Closing  Time,  in an  aggregate  amount of no more than the  warranty  reserves
established on the most recent balance sheet of the Company.  HPL Companies have
delivered to Purchaser  copies of their  warranty  policies and all  outstanding
warranties or guarantees  relating to any of products of the Business other than
warranties or  guarantees  implied by law.  There is no claim  asserting (a) any
damage, loss or injury caused by any product of the Business,  or (b) any breach
of any  express or implied  product  warranty  or any other  similar  claim with

<PAGE>

respect to any product of the Business other than standard warranty  obligations
(to replace,  repair or refund) made by HPL Companies in the ordinary  course of
business.

               SECTION 5.11 PROPRIETARY RIGHTS.

               1. Schedule 5.11 sets forth all of the Proprietary Rights. Any of
the Proprietary Rights that require the execution and filing with an appropriate
governmental agency have been so indicated on Schedule 5.11.

               2.  Schedule  5.11  sets  forth a true and  complete  list of all
contracts, licenses and other agreements to which either of the HPL Companies is
a party, which affect any item of the Proprietary  Rights,  except  commercially
available (i.e., off-the-shelf) software.  Schedule 5.11 specifically designates
all such  contracts,  licenses or other  agreements (i) pursuant to which either
Seller is a direct or indirect licensor or licensee of Proprietary  Rights, (ii)
under which either of the HPL  Companies  has granted or been granted  exclusive
rights,  (iii) under which  either of the HPL  Companies  is obligated to pay in
excess of (or under which the  consideration  is reasonably  expected to exceed)
$50,000 in any one year  period and (iv) all  parties to whom  either of the HPL
Companies  has  delivered  their  source  code,  whether  pursuant  to an escrow
arrangement  or  otherwise  and all parties  who have the right to receive  such
source code.

               3. Except in each case as set forth in Schedule 5.11:

                    a.   The HPL Companies  either own  or  have  the  exclusive
          right to use,  sell,  license and dispose of, to bring actions for the
          infringement  of  and  otherwise  exercise  all  Proprietary   Rights,
          including  Proprietary  Rights which comprise trade secret rights,  to
          the extent permitted by law (hereinafter,  "Trade Secrets"),  free and
          clear of all encumbrances.

                    b.  The  HPL  Companies  have  the  non-exclusive  right  to
          use,  sell,  license and dispose of all  Proprietary  Rights listed on
          Schedule 5.11 as exceptions to the previous paragraph.

                    c.   The HPL Companies  have  taken all appropriate  actions
          and  made  all  applicable   applications   and  filings  pursuant  to
          applicable   laws  to  perfect  or  protect  their  interests  in  all
          Proprietary Rights.

                    d.   The  execution,   delivery  and   performance  of  this
          Agreement  and the  Related  Agreements  and the  consummation  of the
          transactions  contemplated  hereby and  thereby  will not (A)  breach,
          violate or conflict  with any  instrument  or agreement  governing any
          Proprietary  Right,  (B) cause the  forfeiture or  termination or give
          rise to a right of forfeiture or termination of any Proprietary Right,
          or (C) in any way impair the right of Purchaser to use, sell,  license
          or  dispose of or to bring any  action  for the  infringement  of, any
          Proprietary Right or any products or technology  designed,  developed,
          manufactured,   sold  or  serviced  by  the  Business   (collectively,
          "Products").
<PAGE>

                    e.  The manufacture,  marketing, license, sale or use of any
          Products  anywhere  in the world does not or would not (A) violate any
          license  or  agreement  with any  third  party,  (B)  infringe  on any
          non-patent  Proprietary  Right of any third party or (C)  infringe any
          third party patent rights.  Neither the HPL Companies nor any of their
          employees have misappropriated any third party trade secrets. There is
          no claim or litigation pending or threatened  contesting the validity,
          ownership or right to use, sell, license or dispose of any Proprietary
          Right,  or claiming that the HPL  Companies or any of their  employees
          have  misappropriated  any third party trade  secrets nor is there any
          basis for any such claim.

                    f.    No third party is infringing on any Proprietary  Right
          where such  infringement  could limit the  protection  afforded by the
          Proprietary   Rights  to  the  use,  sale,   license,   sublicense  or
          disposition of the Products or prevent the future  enforcement of such
          Proprietary Right.

                    g.  The  HPL  Companies  have  taken  all  steps  reasonably
          necessary  or  appropriate   (including,   entering  into  appropriate
          confidentiality,  nondisclosure  and  noncompetition  agreements,  the
          forms of which have been delivered to Purchaser or their counsel, with
          all  officers,  directors,  subcontractors,  employees,  licensees and
          entities  that serve the  Business)  to  safeguard  and  maintain  the
          secrecy and  confidentiality  of, and the  proprietary  rights in, all
          Proprietary Rights.

                    h.   All Trade Secrets are  presently  and as of the Closing
          Time will be located at the HPL Companies'  addresses as shown in this
          Agreement  and have not been used,  divulged or  appropriated  for the
          benefit of any person other than the HPL Companies or to the detriment
          of the HPL Companies.

               4. Except in each case as set forth in Schedule 5.11:

                    a.   Each of the licenses and  agreements listed or required
          to be listed in the  Schedules  to this  Section 5.11 is in full force
          and effect and is a valid obligation  enforceable  against each of the
          HPL Companies (to the extent it is a party  thereto),  and against the
          other party thereto in accordance with its terms.

                    b.   HPL  Companies  have performed, or are now  performing,
          their  obligations,  and HPL Companies are not in default (or would by
          the lapse of time or the  giving  of  notice  or both be in  default),
          under any  license or  agreement  listed or  required  to be listed in
          Schedule  5.11. No other party to such  licenses and  agreements is in
          default  (or  would by the  lapse of time or the  giving  of notice or
          both,  be  in  default)  thereunder  or  has  breached  any  terms  or
          provisions thereof.
<PAGE>

                    c.    No third party  has raised against  either  of the HPL
          Companies  or any of their  current or former  service  providers  any
          claim,  dispute or controversy  with respect to any of the licenses or
          agreements  which is listed or required to be listed in Schedule 5.11.
          Neither of the HPL Companies has received notice or warning of alleged
          nonperformance,  delay in delivery or other noncompliance by either of
          the HPL  Companies  with respect to their  obligations  under any such
          licenses or agreements.

               SECTION 5.12 CONTRACTS AND COMMITMENTS.

               1. Schedule 5.12 lists all outstanding Contracts,  whether or not
in writing,  to which either of the HPL  Companies is a party or to which any of
the  Assets  are  subject  that may:  (i)  involve  obligations  (contingent  or
otherwise)  or  unwritten  agreements  of,  or  payments  to,  either of the HPL
Companies in excess of $50,000;  (ii) involve written  agreements with suppliers
and customers of either of the HPL  Companies;  (iii) involve the license of any
Proprietary Rights to or from either Seller; (iv) contain provisions restricting
and/or affecting the development, manufacture, or distribution of HPL Companies'
products  or  services;  (v) relate to any aspect of the  Business  in which any
person who was or is an  officer,  director,  or  employee  of either of the HPL
Companies (or any person, firm,  partnership,  trust, or corporation  affiliated
with any such persons or any family members of such persons) has an interest; or
(vi)  involve  agreements  (written  or  unwritten)  on which  the  Business  is
dependent.

               2. Each of the HPL Companies has performed all of its obligations
under the terms of each Contract listed in Schedule 5.12 to which it is a party,
and is not in default thereunder. No event has occurred which but for the giving
of  notice or lapse of time or both  would  constitute  a  default  by any party
thereto under any such Contract.  Each such Contract is valid and binding on all
parties  thereto and in full force and effect.  Neither of the HPL Companies has
received a notice of default,  cancellation,  or termination in connection  with
any such Contract.

               SECTION 5.13  ASSETS.

               The Assets  include all intellectual  property, inventory and all
other  property,  in which either of the HPL Companies has any right,  title and
interest,  necessary  to operate the Business in the same manner as the Business
was  operated by the HPL  Companies  prior to the Closing  Time.  The Assets are
suitable for the purpose or purposes for which they are being used,  are in good
operating  condition and in reasonable  repair, and free from any known defects,
except such minor  defects as do not  interfere  with the continued use thereof.
Each  tangible  Asset  has been  serviced  and  maintained  in  accordance  with
customary industry practices.  Subject to normal wear and tear, and to financial
reserves on the Company's  most recent  balance  sheet that are  adequate,  such
plants,  facilities,  machinery,  and equipment are capable of and are producing
sound and merchantable products.


<PAGE>

                SECTION 5.14   NO CONFLICT OR DEFAULT.

                Neither the  execution  and  delivery  of this  Agreement or the
Related  Agreements,  nor compliance  with the terms and  provisions  hereof and
thereof,  including the consummation of the transactions contemplated hereby and
thereby, will violate any statute,  regulation, or ordinance of any governmental
authority,  or conflict with or result in the breach of any term, condition,  or
provision of either of the HPL Companies'  Articles of  Incorporation  or Bylaws
(or similar constituent documents), as presently in effect, or of any agreement,
deed, contract,  mortgage,  indenture, writ, order, decree, legal obligation, or
instrument  to which  either of the HPL  Companies  is a party or by which it or
they or any of the Assets are or may be bound,  or  constitute  a default (or an
event  which,  with the lapse of time or the  giving of notice,  or both,  would
constitute a default) thereunder.

               SECTION 5.15  LABOR RELATIONS.

               1.  With respect to the  Business, the Company  has not failed to
comply  in any  respect  with  Title  VII of the Civil  Rights  Act of 1964,  as
amended,  the Fair Labor Standards Act, as amended,  the Occupational Safety and
Health Act of 1970, as amended,  all applicable federal,  state, and local laws,
rules,  and regulations  relating to employment,  and all applicable laws, rules
and regulations  governing  payment of minimum wages and overtime rates, and the
withholding and payment of taxes from compensation of employees.

               2.  There  are  no  labor  controversies  pending  or  threatened
between  either  Seller  and any of its  employees  or any labor  union or other
collective bargaining unit representing any of the employees.

               3.  Neither  of  the  HPL  Companies  has  ever  entered  into  a
collective  bargaining  agreement or other labor union contract  relating to the
Business and applicable to the employees.

               4.   There are no written employment or separation agreements, or
oral  employment  or  separation  agreements  other than those  establishing  an
"at-will" employment relationship between either of the HPL Companies and any of
the employees.

               SECTION 5.16  EMPLOYEE BENEFIT PLANS.

               1.   Schedule 5.16 lists all employee  benefit  plans (as defined
in  Section 3(3)  of the Employee  Retirement  Income  Security Act of 1974,  as
amended  ("ERISA"))  and all bonus,  stock option,  stock  purchase,  incentive,
deferred  compensation,  supplemental  retirement,  severance  and other similar
fringe or employee benefit plans,  programs or arrangements,  and any current or
former employment or executive compensation or severance agreements,  written or
otherwise,  for  the  benefit  of,  or  relating  to,  any  employee  of the HPL
Companies, any trade or business (whether or not incorporated) which is a member
or which is under common control with the Company (an "ERISA  Affiliate") within

<PAGE>

the  meaning  of  Section  414 of the  Code  or any  Subsidiary  of the  Company
(together, the "Employee Plans"), and a copy of each such Employee Plan has been
provided to Purchaser.

               2. a. None of the  Employee  Plans  promises or provides  retiree
medical or other retiree welfare benefits to any person;  (ii) there has been no
"prohibited  transaction,"  as such term is defined in Section  406 of ERISA and
Section 4975 of the Code, with respect to any Employee Plan,  which could result
in any material  liability of the Company or any of its Subsidiaries;  (iii) all
Employee  Plans  are  in  compliance  in  all  respects  with  the  requirements
prescribed by any and all statutes  (including ERISA and the Code),  orders,  or
governmental  rules and  regulations  currently in effect with  respect  thereto
(including all applicable  requirements  for notification to participants or the
Department of Labor, Internal Revenue Service or Secretary of the Treasury), and
the Company and each of its Subsidiaries have performed all material obligations
required to be  performed  by them  under,  are not in any  material  respect in
default under or violation of, and have no knowledge of any default or violation
by any other  party to,  any of the  Employee  Plans;  (iv) each  Employee  Plan
intended to qualify under Section  401(a) of the Code and each trust intended to
qualify  under  Section 501(a)  of the  Code  does so  qualify  and a  favorable
determination  letter with respect to each such Employee Plan and trust has been
received from the Internal Revenue Service (the "IRS"), and nothing has occurred
which may  reasonably  be  expected to cause the loss of such  qualification  or
exemption;  (v) all  contributions  required  to be made  to any  Employee  Plan
pursuant  to  Section  412 of the Code,  the terms of the  Employee  Plan or any
collective bargaining agreement, have been made on or before their due dates and
a reasonable amount has been accrued for contributions to each Employee Plan for
the current plan years;  (vi) with respect to each Employee Plan, no "reportable
event" within the meaning of Section 4043 of ERISA (excluding any such event for
which  the  thirty  (30) day  notice  requirement  has  been  waived  under  the
regulations to Section 4043 of ERISA) nor any event  described in  Section 4062,
4063 or 4041 of ERISA has  occurred;  and (vii) no Employee  Plan is covered by,
and neither the Company nor any  Subsidiary has incurred or expects to incur any
liability under, Title IV of ERISA or Section 412 of the Code.

               SECTION 5.17  BROKERS' AND FINDERS' FEES/CONTRACTUAL LIMITATIONS.

               Neither  of the HPL  Companies is  obligated  to pay  any fees or
expenses of any broker or finder in connection with the origin,  negotiation, or
execution of this Agreement or in connection with any transactions  contemplated
hereby. Neither of the HPL Companies, nor any officer, director, employee, agent
or   representative    of   either   of   the   HPL   Companies    (collectively
"Representatives") are or have been subject to any agreement,  letter of intent,
or understanding of any kind which prohibits, limits, or restricts either of the
HPL  Companies  or the  Representatives  from  negotiating,  entering  into  and
consummating  this  Agreement,  the  Related  Agreements  and  the  transactions
contemplated hereby and thereby.

               SECTION 5.18  INTERESTED PARTY RELATIONSHIPS.

               Except as set forth in the footnotes to the Company's most recent
financial statements provided to Purchaser,  neither the HPL Companies,  nor any

<PAGE>

shareholder  of the  Company,  nor any  officer and  director  or family  member
thereof,  or any corporation,  partnership,  or other entity which,  directly or
indirectly,  alone or together with others, controls, is controlled by, or is in
common  control with any officer and director or family  member  thereof has any
material  financial  interest,  direct or indirect,  in any material supplier or
customer,  any party to any contract  which is material to the Business,  or any
competitor with the Business.

               SECTION 5.19  ENVIRONMENTAL MATTERS.

               The  Company  and the  Subsidiary (i) has obtained all applicable
permits,  licenses and other  authorizations  which are required  under foreign,
federal,  state or  local  laws  relating  to  pollution  or  protection  of the
environment,  including  laws  relating to  emissions,  discharges,  releases or
threatened releases of pollutants, contaminants, or hazardous or toxic materials
or wastes into ambient air,  surface water,  ground water,  or land or otherwise
relating to the manufacture,  processing, distribution, use, treatment, storage,
disposal,  transport,  or handling of pollutants,  contaminants  or hazardous or
toxic materials or wastes by the Company and the Subsidiary (or their respective
agents);  (ii) are in compliance  with all terms and conditions of such required
permits,  licenses and authorization,  and also are in compliance with all other
limitations,  restrictions,  conditions, standards, prohibitions,  requirements,
obligations, schedules and timetables contained in such laws or contained in any
regulation,  code,  plan,  order,  decree,  judgement,  notice or demand  letter
issued, entered,  promulgated or approved thereunder; (iii) are not aware of nor
have received notice of any event, condition, circumstance,  activity, practice,
incident, action or plan which is reasonably likely to interfere with or prevent
continued  compliance  or which  would give rise to any common law or  statutory
liability, or otherwise form the basis of any claim, action, suit or proceeding,
based on or  resulting  from the  Company's or the  Subsidiary  (or any of their
respective  agents')  manufacture,  processing,  distribution,  use,  treatment,
storage,  disposal,  transport,  or handling,  or the  emission,  discharge,  or
release into the  environment,  of any pollutant,  contaminant,  or hazardous or
toxic material waste;  (iv) have taken all actions  necessary  under  applicable
requirements of Federal, state or local environmental laws, rules or regulations
to register any products or materials  required to be  registered by the Company
or the Subsidiary (or any of their respective  agents)  thereunder;  and (v) are
not aware of any  contaminated  soil or  groundwater at any of the properties or
portions thereof owned or operated,  leased or previously owned or leased by the
Company or the Subsidiary.  The Company does not require any permits relating to
pollution  or  protection  of  the  environment,   including  laws  relating  to
emissions,   discharges,   releases  or  threatened   releases  of   pollutants,
contaminants,  or  hazardous  or toxic  materials  or wastes into  ambient  air,
surface water,  ground water, or land or otherwise  relating to the manufacture,
processing,  distribution,  use, treatment,  storage,  disposal,  transport,  or
handling of pollutants,  contaminants  or hazardous or toxic materials or wastes
by the Company or the Subsidiary (or their respective  agents).  The Company has
disclosed to Purchaser in the Disclosure Letter all documents  relating to tests
previously   conducted  or  to  be   conducted  in  the  future  for   potential
contamination at any of the Company's or such Subsidiary's  facilities,  whether
owned or leased, including soil and water tests.


<PAGE>

               SECTION 5.20 CERTAIN PAYMENTS.

               In connection  with the Business,  the HPL Companies have not and
no person  directly or  indirectly  on behalf of the HPL  Companies  has made or
received any payment that was not legal to make or receive.

               SECTION 5.21 BOOKS AND RECORDS.

               The books and records of the HPL Companies to which Purchaser has
been given access are the true books and records of the HPL  Companies and truly
and fairly reflect the underlying facts and transactions in all respects.

               SECTION 5.22 COMPLETE DISCLOSURE.

               No   representations   or  warranties  made  by  the  Shareholder
Representatives  in this Agreement,  nor any financial  statements  prepared and
furnished  or to be  prepared  and  furnished  by the  HPL  Companies  or  their
representatives   to  Purchaser  pursuant  hereto  or  in  connection  with  the
transactions  contemplated hereby, contains or will contain any untrue statement
of a material  fact, or omits or will omit to state a material fact necessary to
make the statements or facts contained herein or therein not misleading.

               SECTION 5.23 BACKLOG.

               Schedule  5.23 sets  forth  the  backlog  of orders  that the HPL
Companies  are to ship and  contract  work to be performed as of March 31, 1998.
The HPL Companies either possess  sufficient  inventory of parts,  materials and
personnel  to produce the same within  their  scheduled  delivery  dates or such
parts or materials  have lead times such that the HPL Companies can acquire such
parts and materials in time to produce and ship such backlog in accordance  with
its schedule shipping date.

               SECTION 5.24 CUSTOMERS AND SUPPLIERS.

               None of the HPL Companies' ten largest  customers and ten largest
suppliers during the twelve months ended March 31, 1998 (determined on the basis
of both revenues and bookings during such period) has terminated,  or intends to
materially  reduce  or  terminate,  the  amount  of its  business  with  the HPL
Companies,  and no such  termination or alteration will occur as a result of the
consummation of this Agreement.

               SECTION 5.25 BEST EFFORTS.

               Each of the  Shareholder  Representatives  shall use  their  best
efforts to effectuate the  transactions  contemplated  hereby and to fulfill and
cause to be fulfilled the  conditions to Closing under this  Agreement.  Each of
the Shareholder  Representatives shall promptly apply for or otherwise seek, and
use their best efforts to obtain,  all consents and  approvals  required for the
consummation of the transactions set forth hereby.


<PAGE>

               SECTION 5.26 EMPLOYMENT AGREEMENTS.

               Prior   to  the   Closing   Time,   each   of   the   Shareholder
Representatives  shall use their best efforts to assist  Purchaser in persuading
employees of the Business to be willing to accept employment with Purchaser.

               SECTION 5.27 INVENTORY.

               Schedule 5.27 sets forth a list of all of the  inventories of the
Business as of the date hereof (the  "Inventories").  The Inventories are valued
at cost  (determined  on a first-in  first-out  basis) or market,  whichever  is
lower, with adequate  allowances for excess and obsolete materials and materials
below standard quality in accordance with GAAP consistently applied. The quality
and quantity of the Inventories are such that the Inventories are readily usable
and  saleable  in the normal  course of business  of the  Business,  except such
amounts as are reserved in accordance with GAAP consistently  applied. All items
included in such  Inventories  are owned by the HPL Companies.  All  Inventories
materially in excess of reasonable estimated requirements for the Business based
on  current  operations  for the three (3) months  from the date  hereof are set
forth in Schedule 5.27.  Except as disclosed in Schedule 5.27, the HPL Companies
hold  no  Inventories   manufactured  to  customer  specifications   effectively
rendering the Inventories saleable only to that customer.

               SECTION 5.28 PAYABLES; RECEIVABLES.

               All the accounts  receivable  and notes  receivable  owing to the
Business  as of the date hereof are set forth in  Schedule  5.28 and  constitute
valid and enforceable claims arising from bona fide transactions in the ordinary
course of business, and there are no contingent or asserted claims,  refusals to
pay, rights of return, or other rights of set-off against any thereof. As of the
date  hereof,  except as set forth in  Schedule  5.28,  there is (i) no  account
debtor or note debtor  delinquent  in its payment by more than 30 days,  (ii) no
account  debtor or note debtor that has refused (or threatened to refuse) to pay
its obligations  for any reason,  (iii) no account debtor or note debtor that is
insolvent or bankrupt,  and (iv) no account  receivable or note receivable which
is pledged to any third party by either of the HPL Companies. Neither of the HPL
Companies holds deposits from customers or has received prepaid service contract
revenue or other prepaid revenue.

               SECTION 5.29 SERVICE PROVIDER AGREEMENTS.

               No service  provider of the HPL  Companies is in violation of any
term  of any  employment  agreement  (whether  written  or  verbal),  patent  or
trademark  disclosure  agreement or any other contract or agreement  relating to
the  relationship  of any such service  provider  with the HPL  Companies or any
other party (including prior employers) or any term of any judgment,  decree, or
order, because of the nature of the business now conducted or now proposed to be
conducted by the HPL Companies.  Each current and former service provider of the
HPL Companies has executed a proprietary  information  and inventions  agreement
(or similar agreement) with the HPL Companies in the form then being used by the
HPL Companies, all of which forms have been previously delivered to Purchaser by

<PAGE>

the HPL Companies.  Each employee or consultant-inventor  has executed a written
agreement  validly  assigning  his or her  rights  to the HPL  Companies  on all
inventions,  pending  patent  applications,  all patents  issued,  and all other
intellectual  property rights  developed by such service  provider while working
for or on behalf of the HPL Companies. To the extent the HPL Companies have ever
utilized consultants or independent contractors,  each consultant or independent
contractor  has  executed  a written  agreement,  validly  assigning  to the HPL
Companies  his or her rights in and to all  copyrights  and works of  authorship
relating to products, services or technology designed, developed,  manufactured,
licensed,  sold, marketed or serviced by the HPL Companies and its business. The
HPL  Companies  are not aware that any of its service  providers is in violation
thereof  and  will use all  efforts  to  prevent  any  such  violation.  The HPL
Companies are not aware that any of its service  providers  are obligated  under
any contract  (including  licenses,  covenants or  commitments of any nature) or
other  agreement,  or subject to any  judgment,  decree or order of any court or
administrative  agency,  that  would  interfere  with the use of his or her best
efforts to promote the  interests of the HPL  Companies  or that would  conflict
with the HPL  Companies  business as conducted or as proposed to be conducted or
that would prevent any such service  provider from  assigning  inventions to the
HPL Companies.  The HPL Companies do not believe that it is or will be necessary
for the HPL Companies to utilize any inventions of any of its service  providers
(or people it currently  intends to hire) made prior to their  employment  by or
relationship with the HPL Companies.

                                   ARTICLE VI

                                    COVENANTS
                                    ---------

               SECTION 6.1 CONSENTS.  The Shareholder  Representatives shall use
their best  efforts  to obtain,  or to cause the HPL  Companies  to obtain,  all
consents of and authorizations by third parties and to make all filings with and
give all notices to third  parties that may be necessary or required in order to
consummate  the sale of the Assets,  and shall take such  additional  actions as
Purchaser may reasonably  request so that the transactions  contemplated by this
Agreement may be expeditiously consummated.

               SECTION 6.2 EMPLOYMENT  OFFERS.  Purchaser  shall offer to employ
all employees of the HPL Companies employed exclusively in the Business,  all of
such employees (and only such employees) being listed on Schedule 6.2; provided,
however,  that  Purchaser  shall not agree to maintain such  employment  for any
particular period of time and, if such offers are accepted,  such employees will
be employed on an "at will" basis.  Purchaser shall not solicit any employees of
the HPL Companies other than those set forth on Schedule 6.2.

               SECTION 6.3 COBRA. The Shareholder  Representatives  shall ensure
that  the HPL  Companies  comply  with the  health  care  continuation  coverage
requirements  of the  Consolidated  Omnibus  Budget  Reconciliation  Act of 1985
("COBRA") applicable to employees of the HPL Companies who are terminated by the
HPL Companies on or before the Closing Time.
<PAGE>

               SECTION  6.4 MAIL AND  RECEIVABLES  PAYMENTS.  From and after the
Closing Time, the  Shareholder  Representatives  shall endorse,  or shall ensure
that the HPL Companies endorse,  any check or any other evidence of indebtedness
or payment  received by the HPL  Companies on account of any Accounts  after the
Closing  Time to the order of Purchaser  or take other  appropriate  actions and
shall promptly forward such payment to Purchaser no later than five (5) business
days after actual  receipt by the HPL Companies.  Purchaser and the  Shareholder
Representatives  shall each provide to the other all the  cooperation  which the
other may reasonably request in connection with the collection of the Accounts.

               SECTION 6.5  NOTIFICATION  OF CERTAIN  MATTERS.  Each party shall
give prompt notice to the other of (i) the occurrence, or non-occurrence, of any
event the occurrence,  or non-occurrence,  of which would be likely to cause any
representation  or  warranty  contained  in  this  Agreement  to  be  untrue  or
inaccurate and (ii) any failure of Purchaser or the Shareholder Representatives,
as the case may be,  to  comply  with or  satisfy  any  covenant,  condition  or
agreement to be complied with or satisfied by them hereunder; provided, however,
that the delivery of any notice  pursuant to this Section 6.5 shall not limit or
otherwise  affect the remedies  available  hereunder to the party receiving such
notice.

               SECTION  6.6  FURTHER  ACTION.  Upon the terms and subject to the
conditions   hereto,   each  of  the  Purchaser  and  each  of  the  Shareholder
Representatives  hereto shall use all reasonable efforts to take, or cause to be
taken,  all actions and to do, or cause to be done, all other things  necessary,
proper or advisable to consummate  and make effective as promptly as practicable
the transactions contemplated by this Agreement to obtain in a timely manner all
necessary   waivers,   consents  and  approvals  and  to  effect  all  necessary
registrations and filings, and to otherwise satisfy or cause to be satisfied all
conditions  precedent to its obligations under this Agreement.  The Shareholders
Representatives  shall ensure that the Company changes its corporate name within
30 days of the Closing  Time to a name which does not uses any of the words,  or
any combination thereof, "Heuristic", "Physics" and "Laboratories" and to ensure
that  Purchaser  have all rights to the name  "Heuristic  Physics  Laboratories,
Inc."

               SECTION  6.7  COVENANTS  AGAINST   DISCLOSURE.   The  Shareholder
Representatives and Purchaser agree to maintain the confidentiality of the terms
and  conditions  of this  Agreement;  provided,  however,  that the  Shareholder
Representatives  may provide copies of this  Agreement and related  documents to
the  Company  or to any party who  acquires,  or  proposes  to  acquire,  all or
substantially all of the capital stock or remaining assets of the HPL Companies;
provided,  further,  however,  any party hereto may disclose  information to the
extent  required by securities  laws or as compelled by court order.  Neither of
the Shareholder  Representatives nor Purchaser shall disseminate (except to each
other)  any  press  release  or   announcement   concerning   the   transactions
contemplated  by this Agreement  without the prior written  consent of the other
parties;  provided,  however,  that any of the  parties  hereto may  disseminate
information to employees and legal and accounting representatives.

               SECTION 6.8. NO SHOP. The Shareholder  Representatives shall not,
nor shall they permit any of their legal or  financial  advisors or any officers
or directors of the Company to, solicit, negotiate or discuss the disposition of
any of the Assets to any person other than Purchaser.
<PAGE>

                                  ARTICLE VII

                                    CLOSING
                                    -------

               SECTION 7.1 CLOSING TIME. The  transactions  contemplated by this
Agreement  shall be  completed  on June 4, 1998 (the time of the Closing on such
date  being,  the  "Closing  Time"),  unless  otherwise  agreed to in writing by
Purchaser and the Shareholder  Representatives.  The Closing shall take place at
the offices of Brobeck, Phleger & Harrison LLP, Two Embarcadero Place, 2200 Geng
Road, Palo Alto, California 94303, or at such other place as may be agreed to in
writing by Purchaser and the Shareholder  Representatives.  The "Closing," shall
mean  the  deliveries  to be made  by the  Shareholder  Representatives  and the
Purchaser at the Closing Time in accordance with this Agreement.

               SECTION 7.2 DELIVERIES BY THE SHAREHOLDER REPRESENTATIVES. At the
Closing, the Shareholder Representatives shall deliver to Purchaser all duly and
properly executed, the following:

               (a) (1) A good and  sufficient  bill of sale in the form attached
as Exhibit 7.2(a) (the "Bill of Sale") for the Assets to be transferred from the
Company to Purchaser and (ii) if Purchaser  designates  any of its  wholly-owned
subsidiaries  to receive  the Assets  currently  held by  Subsidiary  a good and
sufficient Bill of Sale for the Assets to be transferred  from the Subsidiary to
such  designated  subsidiary  of Purchaser,  in each case  selling,  delivering,
transferring,  and assigning to Purchaser (and any designated  subsidiary) title
to all of the HPL Companies' right,  title, and interest to the Assets, free and
clear  of all  mortgages,  pledges,  liens,  encumbrances,  security  interests,
equities, charges, and restrictions of any nature whatsoever.

               (b)  An opinion of General Counsel Associates LLP, counsel to the
HPL  Companies,  dated the date of the Closing,  in the form attached  hereto as
Exhibit 7.2(b).

               (c) An opinion of Armenian legal counsel to the Subsidiary, dated
the date of the Closing, in the form attached hereto as Exhibit 7.2(c).

               (d)  An affidavit of the Shareholder Representatives, in the form
attached  hereto as Exhibit  7.2(d),  stating,  under  penalty of  perjury,  the
Shareholder  Representatives'  United States taxpayer identification numbers and
that the  Shareholder  Representatives  are not  foreign  persons,  pursuant  to
Section 1445(b)(2) of the Code.

               (e)  Valid  assignments  of  rights for  all Contracts  and other
third party or governmental consents necessary in order for Purchaser to operate
the Business.
<PAGE>

               (f)  Valid  patent,  patent  application,   trademark,  trademark
application,   trade  secret,   domain  name  and  other  intellectual  property
assignments in the forms attached as Exhibit 7.2(f).

               (g)  Valid  proprietary   information  and  invention  agreements
executed by the employees of the Business listed in Schedule 6.2.

               (h) Evidence,  satisfactory  to Purchaser,  of the HPL Companies'
title to all of the Assets and right to fully  convey all Assets  free and clear
of any lien, encumbrances or restrictions on transfer.

               (i)  Evidence   satisfactory  to  Purchaser  of  the  Shareholder
Representatives'  authority to act on behalf of all the  Company's  shareholders
including with respect to receipt of the Purchase Price and the royalty payments
referred to in Section 3.4.

               (j) A certificate  executed by the  Shareholder  Representatives,
dated the date of the  Closing,  to the  effect  that all of the  conditions  to
Closing set forth in this Section 7.2 have been satisfied.

               (k) An accepted  offer of employment  with Purchaser from all the
employees of the Business listed on Schedule 6.2.

               (l) All licenses from all  appropriate  governmental  agencies or
third  parties to operate the  Business in the same manner as the HPL  Companies
operated the Business prior to the Closing Time, including a file format license
in the form attached hereto as Exhibit 7.2(l).

               (m) all books and  records  (or  copies  thereof)  related to the
Business.

               SECTION 7.3  DELIVERIES BY PURCHASER.  At the Closing,  Purchaser
shall deliver, or cause to be delivered,  to the Company, the Purchase Price and
a Waiver and Release in the form attached hereto as Exhibit 7.3.

               SECTION 7.4  FURTHER  ASSURANCES.  At or after the Closing  Time,
each of the Shareholder  Representatives  and Purchaser shall prepare,  execute,
and deliver,  at its expense,  such further  instruments  of  conveyance,  sale,
assignment,  or  transfer,  and shall  take or cause to be taken  such  other or
further action, as any party shall reasonably  request of any other party at any
time or from  time  to  time in  order  to  perfect,  confirm,  or  evidence  in
Purchaser's  title to all or any part of the  Assets  or to  consummate,  in any
other manner, the terms and provisions of this Agreement.

<PAGE>

                                 ARTICLE VIII

                         SETTLEMENT AND GENERAL RELEASE
                         ------------------------------

               SECTION 8.1 SETTLEMENT AND GENERAL RELEASE. For the consideration
set forth in Article III herein, each of the Shareholder  Representatives waives
and  releases  Purchaser  and  each  of  its  successors,  officers,  directors,
affiliates,  agents,  employees  and/or  assigns,  and  covenants  not to sue or
otherwise  institute  or cause to be  instituted  or in any way  participate  in
(except at the request of  Purchaser or as required by legal  process)  legal or
administrative  proceedings  against  Purchaser  and  each  of  its  successors,
officers, directors, affiliates, agents, employees and/or agents with respect to
any  matter  of any kind  arising  out of,  relating  to or  connected  with any
Excluded Liabilities.

               This waiver and release extends to all claims of every nature and
kind,  known or unknown,  suspected  or  unsuspected,  past,  present or future,
arising from Excluded Liabilities.  The Shareholder  Representatives acknowledge
that any and all rights  granted to them under  Section  1542 of the  California
Civil Code or any analogous  state law or federal law or  regulation  are hereby
expressly waived. Said Section 1542 of the Civil Code of the State of California
reads as follows:

               "A GENERAL  RELEASE  DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR
               DOES NOT  KNOW OR  SUSPECT  TO EXIST IN HIS  FAVOR AT THE TIME OF
               EXECUTING THE RELEASE, WHICH IF KNOWN BY HIM MUST HAVE MATERIALLY
               AFFECTED ITS SETTLEMENT WITH THE DEBTOR."

               This Section 8.1 shall constitute a complete defense to any claim
released  herein.  Notwithstanding  any other provision of this Agreement,  this
Section 8.1 shall survive indefinitely.


                                   ARTICLE IX

                       CONDITIONS PRECEDENT TO OBLIGATIONS
                       -----------------------------------

               SECTION 9.1  CONDITIONS TO  OBLIGATIONS  OF  PURCHASER.  Each and
every obligation of Purchaser to be performed at the Closing shall be subject to
the  satisfaction  as of or before the Closing Time of the following  conditions
(unless waived in writing by Purchaser):

               (a)  Representations  and  Warranties.  The  representations  and
warranties of the Shareholder  Representatives set forth in this Agreement shall
have been true and correct  when made and shall be true and correct at and as of
the Closing Time as if such  representations and warranties were made as of such
date and time.

               (b)  Performance  of Agreement.  All covenants,  conditions,  and
other obligations  under this Agreement and the Related  Agreements which are to
be  performed or complied  with by the  Shareholder  Representatives,  including
necessary  approvals of the HPL Companies' Boards of Directors and shareholders,

<PAGE>

shall have been fully  performed  and  complied  with at or prior to the Closing
Time, including the delivery of the instruments and documents in accordance with
Section 7.2 hereof.

               (c)  No  Material  Adverse  Change.  There  shall  have  been  no
material  adverse  change in the financial  condition,  business,  properties or
prospects of the Business since March 31, 1998.

               (d) Absence of Governmental or Other Objection. There shall be no
pending or threatened lawsuit  challenging the transaction by any body or agency
of the  federal,  state,  or local  government  or by any third  party,  and the
consummation  of the  transaction  shall  not have been  enjoined  by a court of
competent jurisdiction as of the Closing Time.

               (e)  Evidence of Title.  Purchase  shall have  received  evidence
satisfactory to it, at or prior to the Closing Time, of the HPL Companies' title
to all of the Assets and right to fully  convey all Assets free and clear of any
lien, encumbrances or restrictions on transfer.

               (f)  Certificate  of  Shareholder  Representatives.   Shareholder
Representatives  shall have  delivered  to Purchaser a  certificate  executed by
them, dated the date of the Closing, to the effect that all of the conditions to
Closing set forth in this Section 9.1 have been satisfied.

               (g)  Approval of  Documentation.  The form and  substance  of all
certificates,  instruments,  opinions,  and other  documents  delivered or to be
delivered to Purchaser  under this Agreement  shall be satisfactory to Purchaser
in all respects.

               (h) Key  Employees.  All  employees  of the  Business  listed  on
Schedule 6.2 shall have accepted offers of employment with Purchaser.

               (i) Licenses. Purchaser shall have received all licenses from all
appropriate  governmental  agencies or third  parties to operate the Business in
the same manner as the HPL Companies  operated the Business prior to the Closing
Time.

               SECTION  9.2  CONDITIONS  TO   OBLIGATIONS  OF  THE   SHAREHOLDER
REPRESENTATIVES. Each and every obligation of the Shareholder Representatives to
be performed at the Closing Time shall be subject to the  satisfaction  as of or
before such time of the following  conditions  (unless  waived in writing by the
Shareholder Representatives):

               (a) Representations and Warranties.  Purchaser's  representations
and warranties set forth in this Agreement shall have been true and correct when
made and  shall be true and  correct  at and as of the  Closing  Time as if such
representations and warranties were made as of such time and date.


<PAGE>

               (b) Absence of Governmental or Other Objection. There shall be no
pending or threatened lawsuit  challenging the transaction by any body or agency
of the  federal,  state,  or local  government  or by any third  party,  and the
consummation  of the  transaction  shall  not have been  enjoined  by a court of
competent jurisdiction as of the Closing Time.


                                    ARTICLE X

                                 INDEMNIFICATION
                                 ---------------

               SECTION 10.1 SURVIVAL OF REPRESENTATIONS,  WARRANTIES,  COVENANTS
AND AGREEMENTS.

               (a) Notwithstanding any investigation  conducted at any time with
regard  thereto  by  or  on  behalf  of  any  party  to  this   Agreement,   all
representations,  warranties,  covenants,  and  agreements of each party in this
Agreement  shall  survive for eighteen  (18) months  following  the Closing.  No
investigation  made  by or on  behalf  of  Purchaser  with  respect  to the  HPL
Companies  or  the  Shareholder   Representatives  shall  be  deemed  to  affect
Purchaser's   reliance  on  the  representations,   warranties,   covenants  and
agreements made by the Shareholder  Representatives  contained in this Agreement
and shall not be a waiver of Purchaser'  rights to indemnity as provided  herein
for the breach or  inaccuracy of or failure to perform or comply with any of the
Shareholder   Representative's   representations,   warranties,   covenants   or
agreements under this Agreement.

               (b) Nothing in this  Agreement  shall be construed as limiting in
any way the  remedies  that may be  available  to a party in the  event of fraud
relating to the representations, warranties, agreements or covenants made by any
party in this Agreement.

               SECTION 10.2 INDEMNIFICATION BY SHAREHOLDER REPRESENTATIVES.

               The Shareholder Representatives hereby agree to indemnify, defend
and hold  harmless  Purchaser  and its  affiliates  against  any and all losses,
liabilities,  damages, demands, claims, suits, actions, judgments, and causes of
action,  assessments,   costs,  and  expenses,  including  interest,  penalties,
attorneys' fees, any and all expenses incurred in investigating,  preparing, and
defending  against  any  litigation,  commenced  or  threatened,  and any  claim
whatsoever,  and  any  and  all  amounts  paid in  settlement  of any  claim  or
litigation (collectively,  "Damages"), asserted against, resulting from, imposed
upon, or incurred or suffered by Purchaser and any of its  affiliates,  directly
or  indirectly,  as a  result  of or  arising  from or in  connection  with  any
inaccuracy  in or  breach  or  nonfulfillment  of any  of  the  representations,
warranties,  covenants, or agreements made by the Shareholder Representatives in
this Agreement or any facts or  circumstances  constituting  such an inaccuracy,
breach,  or  nonfulfillment   (all  of  which  shall  also  be  referred  to  as
"Identifiable Claims");  provided, however, that, except with respect to Damages
arising out of (i) any  violation of any  applicable  bulk sales laws,  (ii) the
Excluded Liabilities,  (iii) Taxes accruing prior to, or in connection with, the
Closing,  (iv) any  breach of Section  5.11  (Proprietary  Rights),  and (v) any
breach  of  the  last  sentence  of  Section  5.1  including  any  claim  by any
shareholder of the Company  (other than the  Shareholder  Representatives)  that
such person has not received their share of the Purchase Price or their share of
the royalty payments  provided for in Section 3.3.  Shareholder  Representatives

<PAGE>

shall be so  liable  only to the  extent  of  aggregate  Damages  in  excess  of
$250,000.  The maximum  monetary  liability of the  Shareholder  Representatives
under this  Section  10.2 shall be (i) with  respect to any notice or notices of
Identifiable Claims delivered by Purchaser to Shareholder Representatives during
the thirty day period  following the Closing Time, the Purchase Price,  and (ii)
with  respect  to any  notice of notices of  Identifiable  Claims  delivered  by
Purchaser to Shareholder  Representatives from the period commencing on the 31st
day after Closing Time until the 540th day after the Closing Time, $2,000,000.

               SECTION  10.3   PROCEDURE  FOR   NOTIFICATION   WITH  RESPECT  TO
THIRD-PARTY CLAIMS.

               (a) If Purchaser  determines to seek  indemnification  under this
Article IX with  respect to the  existence  of any claim  giving rise to Damages
resulting from the assertion of liability by third parties, Purchaser shall give
notice to the Shareholder  Representatives  within 20 days of Purchaser becoming
aware  of  any  such  Identifiable  Claim  or  of  facts  upon  which  any  such
Identifiable  Claim  will be based.  The notice  shall set forth  such  material
information  with respect thereto as is then reasonably  available to Purchaser.
In case any such liability is asserted against Purchaser, and Purchaser notifies
the Shareholder  Representatives thereof, the Shareholders  Representatives will
be entitled, if they so elect by written notice delivered to Purchaser within 20
days after  receiving  Purchaser's  notice,  to assume the defense  thereof with
counsel satisfactory to Purchaser.  Notwithstanding the foregoing, (i) Purchaser
shall  also have the right to employ its own  counsel in any such case,  but the
fees and  expenses of such counsel  shall be at the expense of Purchaser  unless
Purchaser  shall  reasonably  determine  that  there is a conflict  of  interest
between  Purchaser  and the  Shareholder  Representatives  with  respect to such
Identifiable  Claim, in which case the fees and expenses of such counsel will be
borne by the Shareholder Representatives, and (ii) the rights of Purchaser to be
indemnified  hereunder  in respect of  Identifiable  Claims  resulting  from the
assertion of liability by third parties shall not be adversely affected by their
failure to give notice pursuant to the foregoing unless, and, if so, only to the
extent that, the Shareholder  Representatives are materially prejudiced thereby.
With  respect to any  assertion of liability by a third party that results in an
Identifiable  Claim,  the parties  hereto shall make available to each other all
relevant information in their possession material to any such assertion.

               (b) In the event that the Shareholder Representatives,  within 20
days after receipt of the aforesaid  notice of an  Identifiable  Claim,  fail to
assume the defense of Purchaser against such Identifiable Claim, Purchaser shall
have the right to  undertake  the defense,  compromise,  or  settlement  of such
action on behalf of and for the account,  expense,  and risk of the  Shareholder
Representatives.

               (c)  Notwithstanding  anything in this Agreement to the contrary,
if there is a reasonable  probability that an Identifiable  Claim may materially
adversely  affect  Purchaser,  Purchaser  shall have the right to participate in
such defense,  compromise,  or settlement and Shareholder  Representatives shall
not, without Purchaser' written consent (which consent shall not be unreasonably

<PAGE>

withheld),  settle or compromise any  Identifiable  Claim or consent to entry of
any judgment in respect thereof unless such settlement,  compromise,  or consent
includes as an  unconditional  term  thereof  the giving by the  claimant or the
plaintiff  to  Purchaser  a  release  from  all  liability  in  respect  of such
Identifiable Claim.

               SECTION  10.4  PROCEDURE  FOR  INDEMNIFICATION  WITH  RESPECT  TO
NON-THIRD PARTY CLAIMS.

               In the event that  Purchaser  asserts  the  existence  of a claim
giving rise to Damages (but  excluding  claims  resulting  from the assertion of
liability by third  parties),  it shall give written  notice to the  Shareholder
Representatives. Such written notice shall state that it is being given pursuant
to this Section  10.4,  specify the nature and amount of the claim  asserted and
indicate  the date on which  such  assertion  shall be deemed  accepted  and the
amount  of the  claim  deemed a valid  claim  (such  date to be  established  in
accordance with the next sentence). If the Shareholder  Representatives,  within
20 days after the mailing of notice by Purchaser,  shall not give written notice
to Purchaser  announcing  their intent to contest such  assertion of  Purchaser,
such assertion  shall be deemed accepted and the amount of claim shall be deemed
a valid  claim.  In the event,  however,  that the  Shareholder  Representatives
contest the  assertion  of a claim by giving such  written  notice to  Purchaser
within said period,  then the parties shall act in good faith to reach agreement
regarding such claim. In the event that  litigation  shall arise with respect to
any such claim, the prevailing party shall be entitled to reimbursement of costs
and expenses  incurred in connection  with such  litigation  including  attorney
fees, if the parties hereto,  acting in good faith,  cannot reach agreement with
respect to such claim within ten days after such notice.

               SECTION 10.5 INDEMNIFICATION BY PURCHASER.

               Purchaser  hereby agrees to  indemnify,  defend and hold harmless
the Shareholder  Representatives and their respective affiliates against any and
all Damages  asserted  against,  resulting  from,  imposed  upon, or incurred or
suffered by Shareholders Representatives, directly or indirectly, as a result of
or arising from or in connection with (i) any of the Assumed Liabilities or (ii)
the  Purchaser's  conduct of the  Business  after the  Closing  Time;  provided,
however,  that no payment shall be payable by Purchaser  under this Section 10.5
at any time when Shareholder  Representatives shall be in breach of any of their
representations, warranties, covenants and agreements in this Agreement.


                                   ARTICLE XI

                            MISCELLANEOUS PROVISIONS
                            ------------------------

               SECTION  11.1  NOTICE.  All  notices  and  other   communications
required or permitted  under this Agreement shall be delivered to the parties at
the address set forth below,  or at such other  address  that they  designate by
notice to all other  parties in accordance  with this Section 11.1.  All notices
and  communications  shall be deemed to have been  received:  (i) in the case of
personal  delivery,  on the date of such delivery;  (ii) in the case of telex or
facsimile transmission, on the date on which the sender receives confirmation by
telex or facsimile  transmission that such notice was received by the addressee,
provided that a copy of such  transmission is  additionally  sent by mail as set

<PAGE>

forth in (iv) below;  (iii) in the case of overnight air courier,  on the second
business day following the day sent, with receipt confirmed by the courier;  and
(iv) in the case of mailing by first class certified or registered mail, postage
prepaid,  return  receipt  requested,  on the fifth  business day following such
mailing:

If to the Purchaser: Credence Systems Corporation
                     215 Fourier Avenue
                     Fremont, CA 94539
                     Attention- Chief Executive Officer
                     Telephone: (510) 657-7400
                     Telecopy:  (510) 623-2522

    with a copy to:  Brobeck, Phleger & Harrison LLP Two Embarcadero Place
                     2200 Geng Road Palo Alto, CA 94303
                     Attention: Warren T. Lazarow, Esq. & Robert H. Sweeny, Esq.
                     Telephone: (650) 496-2887
                     Telecopy:  (650) 496-2733

If to the Shareholder
   Representatives:  David Lepejian
                     340 Cowper Street
                     Palo Alto, CA 94301
                     Telephone: (650) 321-9947
                     Telecopy:  (650) 321-1830

   with a copy to:
                     Charles Wagner
                     1022 W. Hedding Street
                     San Jose, CA 95126
                     Telephone: (408) 244-6222
                     Telecopy:  (408) 247-7081

               SECTION  11.2  ENTIRE AGREEMENT. This Agreement, the exhibits and
schedules  hereto,  and the  documents  referred  to herein  embody  the  entire
agreement and  understanding  of the parties  hereto with respect to the subject
matter  hereof,  and  supersede  all prior and  contemporaneous  agreements  and
understandings, oral or written, relative to said subject matter.

               SECTION   11.3   REMEDIES   OF   PURCHASER.    The    Shareholder
Representatives  agree that the Assets  are  unique  and not  otherwise  readily
available to Purchaser. Accordingly, the Shareholder Representatives acknowledge
that,  in  addition  to all other  remedies  to which  Purchaser  are  entitled,
Purchaser  shall  have the right to  enforce  the terms of this  Agreement  by a
decree of specific  performance,  provided  Purchaser is not in material default
hereunder.
<PAGE>

               SECTION 11.4  BINDING EFFECT, ASSIGNMENT.  This Agreement and the
various rights and obligations  arising  hereunder shall inure to the benefit of
and be  binding  upon the  Shareholder  Representatives,  their  successors  and
permitted  assigns,  and Purchaser  and its  successors  and permitted  assigns.
Neither  this  Agreement  nor  any  of the  rights,  interests,  or  obligations
hereunder shall be transferred or assigned (by operation of law or otherwise) by
either of the  parties  hereto  without the prior  written  consent of the other
party.

               SECTION 11.5  EXPENSES OF  TRANSACTION,  TAXES.  Each party shall
bear  its own  costs  and  expenses  in  connection  with  this  Agreement.  The
Shareholder  Representatives  shall  pay or cause the HPL  Companies  to pay all
applicable Taxes, including,  without limitation,  sales, use, excise, transfer,
documentary and any other similar Taxes, arising out of the purchase and sale of
the Assets.

               SECTION 11.6  WAIVER, CONSENT.  This Agreement may not be amended
except by a writing executed by the parties hereto,  and no waiver of any of the
provisions  or  conditions  of this  Agreement  or any of the  rights of a party
hereto shall be effective or binding  unless such waiver shall be in writing and
signed by the party  claimed to have given or consented  thereto.  Except to the
extent that a party hereto may have  otherwise  agreed in writing,  no waiver by
that party of any  condition  of this  Agreement or breach by the other party of
any of its  obligations  or  representations  hereunder or  thereunder  shall be
deemed to be a waiver of any other  condition or  subsequent  or prior breach of
the same or any other obligation or representation by the other party, nor shall
any  forbearance  by the first party to seek a remedy for any  noncompliance  or
breach  by the other  party be  deemed to be a waiver by the first  party of its
rights and remedies with respect to such noncompliance or breach.

               SECTION  11.7  THIRD-PARTY  BENEFICIARIES.  Except  as  otherwise
expressly provided for in this Agreement,  nothing herein, expressed or implied,
is intended or shall be  construed  to confer upon or give to any person,  firm,
corporation,  or legal  entity,  other  than the  parties  hereto,  any  rights,
remedies, or other benefits under or by reason of this Agreement.

               SECTION  11.8  SEVERABILITY.  If one or more  provisions  of this
Agreement are held to be  unenforceable  under  applicable  law, such  provision
shall be excluded from this Agreement and the balance of the Agreement  shall be
interpreted  as if such  provision  were so excluded and shall be enforceable in
accordance with its terms.

               SECTION 11.9 GOVERNING LAW. This Agreement  shall in all respects
be  construed  in  accordance  with and  governed  by the  laws of the  State of
California as applied to agreements among California  residents entered into and
to be performed entirely within the State of California.

               SECTION 11.10  ATTORNEYS' FEES. If any action at law or in equity
is necessary to enforce or interpret  the terms of this  Agreement or to protect
the rights  obtained  hereunder  the  prevailing  party shall be entitled to its
reasonable  attorneys' fees,  costs, and  disbursements in addition to any other
relief to which it may be entitled.

               SECTION 11.11 COOPERATION AND RECORDS RETENTION.  The Shareholder
Representatives  and  Purchaser  shall  (i) each  provide  the  other  with such
assistance  as may  reasonably  be  requested  by them in  connection  with  the
preparation  of any  tax  return,  statement,  report  form  or  other  document
(hereinafter  collectively a "Tax Return"),  or in connection  with any audit or
other  examination  by any taxing  authority or any  judicial or  administrative
proceedings  relating to liability  for Taxes,  (ii) each retain and provide the
other,  with any records or other  information which may be relevant to any such
Tax Return,  audit or examination,  proceeding or  determination,  and (ii) each
provide the other with any final determination of any such audit or examination,
proceeding or determination  that affects any amount required to be shown on any
Tax Return of the other for any period.  Without  limiting the generality of the
foregoing, the Shareholder Representatives and Purchaser shall retain, until the

<PAGE>

applicable  statute of  limitations  (including  any  extensions)  have expired,
copies of all Tax  Returns,  supporting  work  schedules  and other  records  or
information  which may be  relevant  to such Tax  Returns for all tax periods or
portions  thereof  ending  before or  including  the Closing  Time and shall not
destroy or otherwise  dispose of any such records  without  first  providing the
other party with a reasonable opportunity to review and copy the same. Purchaser
shall keep the original  copies of the records at its  facilities  in California
and elsewhere, if applicable, and, at the Shareholder  Representatives' expense,
shall  provide  copies of the Records to the  Shareholder  Representatives  upon
request.

               SECTION  11.12  COUNTERPARTS.  This  Agreement  may  be  executed
simultaneously  in  multiple  counterparts,  each of which  shall be  deemed  an
original,  but all of which taken  together  shall  constitute  one and the same
instrument.

               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be executed as of the day and year first above written.

                              CREDENCE SYSTEMS CORPORATION



                              By:   /s/  WILMER R. BOTTOMS
                              -----------------------------------------
                              Name:  Wilmer R. Bottoms
                              Title: President, Chief Executive Officer


                             SHAREHOLDER REPRESENTATIVES:


                                 /s/  YERVANT DAVID LEPEJIAN
                              -----------------------------------------
                              Yervant David Lepejian


                                 /s/  LAWRENCE KRAUSE
                              -----------------------------------------
                              Lawrence Krause



The Company shall furnish  supplementally  a copy of any omitted schedule to the
Commission upon request.


                                                                   EXHIBIT 10.26
                                      LEASE



DATED:    April 10, 1998

BETWEEN:  PACIFIC REALTY ASSOCIATES, L.P.,
          a Delaware limited partnership, hereinafter referred to as "LANDLORD"

AND:      CREDENCE SYSTEMS CORPORATION,
          a California corporation, hereinafter referred to as         "TENANT"


     Tenant  wishes to lease from  Landlord the  following  described  property,
hereinafter referred to as "the Premises":

     A total of approximately  183,315 square feet of warehouse and office space
comprised of approximately 71,265 square feet of office space located in a three
(3) story office building ("Space One") and approximately 112,050 square feet of
warehouse and  manufacturing  space  located in two (2)  connected  single story
buildings  ("Space Two")  located at Five Oaks West Business  Park, on Pine Farm
Road in Hillsboro, Oregon (and generally as located on the attached Exhibit A.)

     Landlord leases the Premises to Tenant for a term of 182 months  commencing
February 1,  1999 and  continuing  through  March 31,  2014.  Base rent shall be
according to the following schedule:

- --------------------------------------------------------------------------------
                                                                       Total
Estimated                                   Base Rent    Amortized    Base Rent
Period***                                   Per Month      Amount     Per Month
- --------------------------------------------------------------------------------
February 1, 1999 through March 31, 1999    $91,881.00*        $0.00   $91,881.00
- --------------------------------------------------------------------------------
April 1, 1999 through March 31, 2004      $150,318.00**  $14,347.00  $164,665.00
- --------------------------------------------------------------------------------
April 1, 2004 through March 31, 2009      $165,350.00**  $14,347.00  $179,697.00
- --------------------------------------------------------------------------------
April 1, 2009 through March 31, 2014      $181,848.00**       $0.00  $181,848.00
- --------------------------------------------------------------------------------
     * This rental amount assumes that  possession of only the Space Two portion
of the Premises has been delivered.

     ** This rental amount assumes that possession of both the Space One and the
Space Two portions of the Premises have been delivered.

     ***  Subsequent  to Tenant's  occupancy  of both Space One and Space Two, a
lease  amendment  shall be executed by both Landlord and Tenant  confirming  the
lease commencement date, the lease termination date, adjusted rental amounts and
any other provisions as appropriate.

     Rent for the first month of the Lease term shall be paid upon  execution of
this Lease. All rent,  including base rent together with the charges,  taxes and
expenses to be paid to Landlord  specified in Paragraphs 3  and 4 of this Lease,
is  payable  in advance on the first day of each  calendar  month.  If  Landlord
consents,  Tenant may occupy the Premises prior to such  commencement  date upon
payment of rent on a prorated basis and compliance with all terms of this Lease.

     Delivery of possession of Space Two shall establish the commencement of the
182 month lease  term.  Delivery  of  possession  of Space Two shall be 120 days
after the date the Space Two shells are  sufficiently  complete  that Tenant can
commence Space Two tenant improvements pursuant to Paragraph 23.4 of this Lease.
Such date is estimated to be  October 1,  1998.  If such date will be earlier or
later than October 1,  1998,  Landlord shall provide Tenant with sixty (60) days
advance  written notice of the actual date.  Notwithstanding  the foregoing,  if
Landlord fails to deliver Space Two on or before  October 1,  1998 or to provide
such notification on or before January 1, 1999, Tenant may rescind this Lease by
notice in  writing  to  Landlord  on or before  January 15,  1999.  Delivery  of
possession  of Space  One  shall  be on  April 1,  1999.  However,  delivery  of
possession  of Space One shall  occur when Space One is occupied by Tenant or is
ready  to be  occupied  by  Tenant  with all work to be  performed  by  Landlord
substantially completed. No notice shall be required


N-CREDENCE.rtf / SKB / LMH                                  5Oaks/304, 305 & 306
5/18/98
Page 1 of 1                                                        Hillsboro, OR

<PAGE>

from  Landlord if Space One is ready on April 1,  1999 or on the first  business
day thereafter.  If it appears that such date will be earlier than or later than
April 1,  1999,  then Landlord  shall provide  Tenant with ten (10) days advance
written notice of same. If Landlord is unable to deliver possession of Space One
to Tenant because of strikes,  acts of God, or any other cause beyond Landlord's
control,  then Tenant may take possession  within ten (10) days of when Landlord
notifies Tenant that Space One is ready for  possession,  and rent for Space One
shall  commence  on the first day that  Tenant  takes  possession  of Space One.
Tenant  shall owe no rent on either  Space One or Space Two until  such space is
ready for  possession.  Landlord  shall  have no  liability  for such  delays in
delivery  of  possession,  and neither  party shall have the right to  terminate
except that  Landlord may cancel this Lease  without  liability if permission to
construct,  use, or furnish  necessary  utilities  to the  Premises is denied or
revoked by any governmental agency or public utility with such authority.

     This  Lease is  subject  to the  following  additional  terms to which  the
parties agree:

     1. USE OF THE PREMISES.

        1.1.  Tenant shall use the premises  only for the purpose of  conducting
the following business:

        Light manufacturing,  assembly, testing, warehousing and distribution of
finished testing equipment and general office related thereto.

        If such use is prevented by any law or governmental  regulation,  Tenant
may use the Premises for other uses allowed under law or governmental regulation
subject to the reasonable approval of Landlord.

        1.2. In connection with its use, Tenant shall at its expense comply with
all  applicable  laws,  ordinances,  and  regulations  of any public  authority,
including  those  requiring  alteration  of the  Premises  because  of  Tenant's
specific use; shall create no nuisance nor allow any objectionable liquid, odor,
or noise to be emitted  from the  Premises;  shall  store no  gasoline  or other
highly combustible  materials on the Premises which would violate any applicable
fire code or regulation nor conduct any operation that will increase  Landlord's
fire  insurance  rates for the  Premises;  and shall not  overload the floors or
electrical  circuits of the Premises.  Landlord  shall have the right to approve
the  installation  of any  power-driven  machinery  by Tenant  and may  select a
qualified electrician whose opinion will control regarding electrical circuits.

        1.3.  Tenant may erect a sign  stating its name and  business or product
after first securing  Landlord's  written approval of the size,  color,  design,
wording,  location,  and method of  attachment  and all  necessary  governmental
approvals.  No signs  shall be  painted on either the Space One or the Space Two
buildings  or project  above the height of either the Space One or the Space Two
buildings.  All signs  installed by Tenant shall be removed upon  termination of
this Lease with the sign location restored to its former state.

        1.4. Tenant shall make no alterations, additions, or improvements to the
Premises or change the color of the exterior  without  Landlord's  prior written
consent  and  without  a  valid  building   permit  issued  by  the  appropriate
governmental  agency.  Upon  termination  of this Lease,  any such  alterations,
additions,   or  improvements  (including  without  limitation  all  electrical,
lighting,  plumbing,  heating and air-conditioning  equipment,  doors,  windows,
partitions,  drapery,  carpeting,  shelving,  counters,  and physically attached
fixtures)  shall at once become part of the realty and belong to Landlord unless
the terms of the applicable consent provide otherwise.

    2.  SECURITY DEPOSIt. None Required.

    3.  UTILITY CHARGES; MAINTENANCE.

        3.1. Tenant shall pay when due all charges for electricity, natural gas,
water, garbage collection, janitorial service, sewer, and all other utilities of
any kind  furnished  to the Premises  during the lease term.  If charges are not
separately metered or stated, Landlord shall apportion the utility charges on an


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equitable   basis.   Landlord  shall  have  no  liability   resulting  from  any
interruption of utility services caused by fire or other casualty, strike, riot,
vandalism,  the making of necessary repairs or improvements,  or any other cause
beyond Landlord's  reasonable  control.  Tenant shall control the temperature in
the Premises to prevent freezing of any sprinkler system.

        3.2. Landlord shall repair and maintain the roof,  gutters,  downspouts,
exterior walls, building structure, foundation, exterior paved areas, curbs, and
landscaping of the Premises in good  condition.  Except for such  obligations of
Landlord, Tenant shall keep the Premises neatly maintained and in good order and
repair.  Tenant's  responsibility  shall include  maintenance  and repair of the
electrical system, plumbing, drainpipes to sewers,  air-conditioning and heating
systems,  overhead and personnel  doors,  and the  replacement  of all broken or
cracked  glass with glass of the same  quality.  Tenant  shall  refrain from any
discharge that will damage the sewers serving the Premises.

        3.3. If the  Premises  have a separate  entrance,  Tenant shall keep the
sidewalks abutting the Premises or the separate entrance free and clear of snow,
ice, debris, and obstructions of every kind.

     4. TAXES, ASSESSMENTS, AND OPERATING EXPENSES.

        4.1. In conjunction with monthly rent payments,  Tenant shall each month
pay a sum representing  Tenant's  proportionate share of real property taxes and
operating expenses for the Premises.  Such amount shall annually be estimated by
Landlord  in good faith to reflect  actual or  anticipated  costs.  At  periodic
intervals  during the term hereof and upon  termination of this Lease,  Landlord
shall  compute  its actual  costs for such  expenses  during  such  period.  Any
overpayment by Tenant shall be credited to Tenant,  and any deficiency  shall be
paid by Tenant within  thirty (30) days after  receipt of Landlord's  statement.
Landlord's records of expenses for taxes and operating expenses may be inspected
by Tenant at reasonable times and intervals.

        4.2. Tenant's proportionate share of real property taxes shall mean that
percentage of the total  assessment  affecting the Premises which is the same as
the  percentage  which  the  rentable  area of the  Premises  bears to the total
rentable area of all buildings  covered by the tax  statement.  If in Landlord's
reasonable  judgment  this  method of  allocation  results  in an  inappropriate
allocation  to Tenant,  Landlord  shall select some other  reasonable  method of
determining Tenant's  proportionate share. If the local assessment authority has
ascribed specific values to each of the buildings covered by the tax statements,
those values shall be used in computing  Tenant's relative share of the assessed
real property taxes.

        4.3. Real property taxes charged to Tenant  hereunder  shall include all
general real property taxes assessed  against the Premises or payable during the
lease term, installment payments on Bancrofted special assessments, and any rent
tax,  tax on  Landlord's  interest  under this Lease,  or any tax in lieu of the
foregoing,  whether  or not any such tax is now in  effect.  Tenant  shall  not,
however, be obligated to pay any tax based upon Landlord's net income.

        4.4.  Operating  expenses  charged to Tenant hereunder shall include all
usual and necessary costs of operating and  maintaining the Premises,  Building,
and any surrounding common areas including,  but not limited to, the cost of all
utilities or services not paid directly by Tenant, property insurance,  property
management,  maintenance and repair of landscaping, parking areas, and any other
common  facilities.  Operating  expenses  shall not include roof  replacement or
correction of structural  deficiencies  of either the Space One or the Space Two
buildings.

     5. PARKING AND STORAGE AREAS.

        5.1. Tenant, its employees, and customers shall have the exclusive right
to use  any  private  parking  spaces  immediately  adjacent  to or  part of the
Premises. Tenant shall control the use of such parking spaces so that there will
be no unreasonable  interference  with the normal traffic flow, and shall permit
no parking on any landscaped or unpaved surface.  Under no  circumstances  shall
trucks serving the Premises be permitted to block streets.

        5.2.  Tenant  shall not  store any  materials,  supplies,  or  equipment
outside in any  unapproved  or  unscreened  area.  If Tenant  erects any visible



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barriers for storage areas,  Landlord shall have the right to approve the design
and  location  of the  barriers.  Trash and  garbage  receptacles  shall be kept
covered at all times.

     6. TENANT'S INDEMNIFICATION; LIABILITY INSURANCE.

        6.1.  Tenant  shall not allow any liens to attach to the  Premises  as a
result of its  activities.  Tenant shall  indemnify and defend Landlord from any
claim, liability, damage, or loss arising out of any activity on the Premises or
within  either  the Space One or the Space Two  buildings  or the  common  areas
serving either the Space One or the Space Two buildings,  by Tenant, its agents,
or invitees or resulting  from Tenant's  failure to comply with any term of this
Lease.

        6.2.  Tenant shall carry  general  liability  insurance on an occurrence
basis with combined  single limits of not less than  $2,000,000.  Landlord shall
have the right to require  Tenant to increase this minimum  liability  insurance
limit by such  reasonable  amounts  as may be  required  to  adequately  protect
Landlord and Tenant in the future as a result of general  increases in liability
awards in the courts but in no event shall Landlord be allowed to require Tenant
to carry more than  $7,000,000 of liability  insurance.  Such insurance shall be
provided by an insurance carrier reasonably  acceptable to Landlord and shall be
evidenced by a certificate  delivered to Landlord stating that the coverage will
not be canceled or materially  altered  without ten (10) days'  advance  written
notice to Landlord.  Landlord  shall be named as an  additional  insured on such
policy,   but  only  with  respect  to  the  indemnity   granted  by  Tenant  in
Paragraph 6.1 above.

    7.  PROPERTY DAMAGE; SUBROGATION WAIVER.

        7.1. If fire or other casualty  causes damage to either the Space One or
the Space Two buildings in an amount  exceeding  fifty percent (50%) of the full
construction-replacement  cost  of  either  the  Space  One  or  the  Space  Two
buildings,  respectively,  Landlord may elect to terminate  this Lease as of the
date of the damage by notice in writing to Tenant  within thirty (30) days after
such date. Otherwise,  Landlord shall promptly repair the damage and restore the
Premises to their former condition as soon as practicable.  Rent shall be abated
during the period for that portion of the Premises not reasonably usable for the
use permitted by this Lease because of such damage and required repairs.

        7.2.  Landlord shall be responsible  for insuring both the Space One and
the Space Two  buildings,  and Tenant  shall be  responsible  for  insuring  its
personal property and trade fixtures located on the Premises.

        7.3. Landlord and Tenant each hereby releases the other, and the other's
partners, officers,  directors, agents and employees, from any and all liability
and  responsibility  to the releasing party and to anyone claiming by or through
it or under it, by way of subrogation or otherwise,  for all claims,  or demands
whatsoever  which arise out of damage or destruction  of property  occasioned by
perils which can be insured by an All Risk  Property  Insurance  Coverage  Form.
Landlord  and  Tenant  grant  this  release  on behalf of  themselves  and their
respective  insurance  companies and each  represents  and warrants to the other
that it is authorized by its respective insurance company to grant the waiver of
subrogation  contained in this  Paragraph 7.3.  This release and waiver shall be
binding upon the parties  whether or not  insurance  coverage is in force at the
time of the loss or destruction of property referred to in this Paragraph 7.3.

    8.  CONDEMNATION.

        If a  condemning  authority  takes  the  entire  Premises  or a  portion
sufficient  to render the  remainder  unsuitable  for Tenant's  use, then either
party may elect to terminate this Lease  effective on the date that title passes
to the  condemning  authority.  Otherwise,  Landlord  shall  proceed  as soon as
practicable to restore the remaining Premises to a condition  comparable to that
existing  at the time of the taking.  Rent shall be abated  during the period of
restoration to the extent the Premises are not reasonably usable by Tenant,  and
rent shall be reduced for the  remainder  of the term in an amount  equal to the
reduction in rental value of the Premises caused by the taking. All condemnation
proceeds for the land and buildings shall belong to Landlord  however Tenant may
separately  pursue a claim for award for business  interruption  and  relocation
costs.


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    9.  ASSIGNMENT AND SUBLETTING.

        9.1.  Tenant shall not assign its  interest  under this Lease nor sublet
the  Premises  without  first  obtaining  Landlord's  consent in writing,  which
consent shall not be unreasonably withheld or delayed.  Landlord will consent to
assignment  if the party to which the  Tenant's  interest in this Lease shall be
assigned has a financial capacity at the time of assignment,  as demonstrated by
audited financial statements of both Tenant and Assignee,  at least equal to the
financial  capacity of Tenant and  Assignee  will use the  Premises for a lawful
purpose not  materially  different from the ordinary use of the Premises or uses
for which the  Premises  are  adapted or for which they were  constructed,  or a
purpose approved by Landlord  pursuant to  Paragraph 1.1.  If the party to which
the  Tenant's  interest in this Lease  shall be assigned  does not meet the test
called  for in  the  preceding  sentence  Landlord  may  withhold  its  consent.
Landlord's  prior consent shall not be required for any assignment,  sublease or
other  transfer  of  Tenant's  interest  in the  Premises  or the  lease  to any
corporation with which Tenant may merge or consolidate or become affiliated as a
parent,  subsidiary,  holding company otherwise, or to an entity in which Tenant
has a controlling  interest.  A subsequent  public offering and sale of stock in
Tenant's  business,  or a transfer  of any amount of  Tenant's  stock  shall not
constitute a change in ownership of Tenant or an assignment of this Lease.  This
provision  shall apply to all  transfers by operation of law or through  mergers
and changes in control of Tenant.  No  assignment  shall  relieve  Tenant of its
obligation to pay rent or perform other  obligations  required by this Lease and
no one assignment or subletting shall be a consent to any further  assignment or
subletting.

        9.2. Subject to the above limitations on transfer of Tenant's  interest,
this Lease shall bind and inure to the benefit of the parties,  their respective
heirs, successors, and assigns.

    10. DEFAULT.

        Any of the  following  shall  constitute  a default by Tenant under this
Lease:

        10.1.  Tenant's failure to pay rent or any other charge under this Lease
within ten (10) days after it is due,  or failure to comply  with any other term
or condition  within  twenty (20) days  following  written  notice from Landlord
specifying the noncompliance.  If such noncompliance  cannot be cured within the
twenty (20) day period,  this provision  shall be satisfied if Tenant  commences
correction  within  such period and  thereafter  proceeds in good faith and with
reasonable diligence to effect compliance as soon as possible.

        10.2. Tenant's insolvency;  assignment for the benefit of its creditors;
Tenant's  voluntary  petition in bankruptcy or adjudication as bankrupt,  or the
appointment of a receiver for Tenant's properties.

    11. REMEDIES FOR DEFAULT.

        In case of default as described in  Paragraph 10  above,  Landlord shall
have the right to the following remedies which are intended to be cumulative and
in addition to any other remedies provided under applicable law:

        11.1.  Terminate this Lease without relieving Tenant from its obligation
to pay damages.

        11.2.  Retake  possession  of the  Premises  by summary  proceedings  or
otherwise,  in which case  Tenant's  liability  to Landlord  for  damages  shall
survive the tenancy. Landlord may, after such retaking of possession,  relet the
Premises upon any reasonable  terms.  No such reletting shall be construed as an
acceptance of a surrender of Tenant's leasehold interest.

        11.3.  Recover  damages  caused by Tenant's  default which shall include
reasonable  attorneys' fees at trial and on any appeal  therefrom.  Landlord may
sue periodically to recover damages as they occur throughout the lease term, and
no action for accrued damages shall bar a later action for damages  subsequently
accruing.  Landlord may elect in any one action to recover  accrued damages plus
damages  attributable to the remaining term of the Lease equal to the difference
between  the rent  under  this  Lease  and the  reasonable  rental  value of the
Premises for the  remainder of the term,  discounted  to the time of judgment at
the rate of six (6%) percent per annum.


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        11.4.  Make any payment or perform any obligation  required of Tenant so
as to cure Tenant's default, in which case Landlord shall be entitled to recover
all amounts so expended  from Tenant,  plus  interest at the rate of ten percent
(10%) per annum from the date of the expenditure.

    12. SURRENDER ON TERMINATION.

        12.1.  On expiration or early  termination  of this Lease,  Tenant shall
deliver all keys to Landlord,  have final  utility  readings made on the date of
move out, and  surrender  the Premises  clean and free of debris inside and out,
with  all  mechanical,  electrical,  and  plumbing  systems  in  good  operating
condition,  all signing removed and defacement corrected, and all repairs called
for under this Lease  completed.  The  Premises  shall be  delivered in the same
condition as at the  commencement of the term,  subject only to depreciation and
wear from ordinary  use.  Tenant shall remove all of its  furnishings  and trade
fixtures  that remain its  property and restore all damage  resulting  from such
removal.  Failure to remove said property  shall be an  abandonment of same, and
Landlord may dispose of it in any manner without liability.

        12.2. If Tenant fails to vacate the Premises when required, Landlord may
elect  either to treat  Tenant as a tenant  from month to month,  subject to all
provisions  of this Lease except the provision for term, or to eject Tenant from
the Premises and recover damages caused by wrongful holdover.

    13. LANDLORD'S LIABILITY.

        13.1.  Landlord  warrants that so long as Tenant complies with all terms
of this Lease it shall be entitled to peaceable  and  undisturbed  possession of
the  Premises  free from any  eviction  or  disturbance  by  Landlord or persons
claiming through Landlord.

        13.2.  All  persons  dealing  with  Pacific  Realty   Associates,   L.P.
("Partnership")  must look solely to the property and assets of Partnership  for
the  payment of any claim  against  Partnership  or for the  performance  of any
obligation of  Partnership  as neither the general  partner,  limited  partners,
employees,   nor  agents  of  Partnership  assume  any  personal  liability  for
obligations  entered  into on  behalf of  Partnership  (or its  predecessors  in
interest) and their respective  properties shall not be subject to the claims of
any person in respect of any such liability or obligation.  As used herein,  the
words "property and assets of partnership" exclude any rights of Partnership for
the payment of capital  contributions or other  obligations to it by the general
partner or any limited partner in such capacity.

    14. MORTGAGE OR SALE BY LANDLORD; ESTOPPEL CERTIFICATES.

        14.1.  This Lease  is  and  shall be  prior to any  mortgage  or deed of
trust ("Encumbrance") recorded after the date of this Lease and affecting either
the Space One or the Space Two  buildings and the land upon which both the Space
One and the Space Two buildings are located.  However,  if any lender holding an
Encumbrance  secured by either the Space One or the Space Two  buildings and the
land  underlying  either the Space One or the Space Two buildings  requires that
this Lease be subordinate to the Encumbrance, then Tenant agrees that this Lease
shall be subordinate to the  Encumbrance if the holder thereof agrees in writing
with Tenant that so long as Tenant performs its obligations  under this Lease no
foreclosure,  deed given in lieu of the  foreclosure,  or sale  pursuant  to the
terms  of the  Encumbrance,  or  other  steps  or  procedures  taken  under  the
Encumbrance  shall affect  Tenant's  rights under this Lease.  If the  foregoing
condition  is met,  Tenant  shall  execute the written  agreement  and any other
documents  required by the holder of the  Encumbrance to accomplish the purposes
of this paragraph.

        14.2. If  either  the  Space One or the Space  Two building is sold as a
result of foreclosure  of any  Encumbrance  thereon or otherwise  transferred by
Landlord or any  successor,  Tenant shall attorn to the  purchaser or transferee
according to the terms and conditions of this Lease,  and the  transferor  shall
have no further liability hereunder.

        14.3.  Either party shall within  twenty (20) days after notice from the
other  execute and deliver to the other party a certificate  stating  whether or
not this Lease has been modified and is in full force and effect and  specifying



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any  modifications or alleged breaches by the other party. The certificate shall
also  state the amount of  monthly  base rent,  the dates to which rent has been
paid in advance, and the amount of any security deposit or prepaid rent. Failure
to deliver the  certificate  within the specified time shall be conclusive  upon
the party of whom the  certificate was requested that the Lease is in full force
and effect and has not been modified  except as may be  represented by the party
requesting the certificate.

    15. DISPUTES - ATTORNEYS' FEES.

        In the event of any litigation arising out of this Lease, the prevailing
party  shall be  entitled to recover  from the other  party,  in addition to all
other relief provided by law or judgement,  its reasonable  costs and attorneys'
fees  incurred  both at and in  preparation  for trial and any appeal or review,
such  amount to be as  determined  by the  court(s)  before  which the matter is
heard.  Disputes  between the parties  which are to be litigated  shall be tried
before a judge without a jury.

    16. SEVERABILITY.

        If any provision of this Lease is  held to be  invalid, unenforceable or
illegal the remaining  provisions shall not be affected and shall be enforced to
the fullest extent permitted by law.

    17. INTEREST AND LATE CHARGES.

        Rent not paid within ten (10) days of when due shall bear  interest from
the date due until paid at the rate of eight percent (8%) per annum.

    18. GENERAL PROVISIONS.

        18.1.  Waiver by either party of strict  performance of any provision of
this Lease shall not be a waiver of nor prejudice the party's right otherwise to
require performance of the same provision or any other provision.

        18.2. Subject to the limitations on transfer of Tenant's interest,  this
Lease  shall bind and inure to the  benefit  of the  parties,  their  respective
heirs, successors, and assigns.

        18.3.  Landlord  shall have the right to enter upon the Premises  during
normal working hours after reasonable notice to Tenant, emergencies excepted, at
any time to determine  Tenant's  compliance  with this Lease,  to make necessary
repairs to the Premises,  or to show the Premises to any  prospective  tenant or
purchasers.  During  the last two  months  of the term,  Landlord  may place and
maintain upon the Premises notices for leasing or sale of the Premises.

        18.4.  If this Lease  commences or  terminates  at a time other than the
beginning  or end  of  one  of the  specified  rental  periods,  then  the  rent
(including  Tenant's share of real property  taxes, if any) shall be prorated as
of such date, and in the event of termination for reasons other than default all
prepaid rent shall be refunded to Tenant or paid on its account.

        18.5.  Either  party  shall  within  ten (10) days  following  the other
party's  written  request  deliver  to  the  other  party  a  written  statement
specifying the dates to which the rent and other charges have been paid, whether
the Lease is unmodified and in full force and effect, and any other matters that
may reasonably be requested by the other party.

        18.6.  Notices  between the  parties  relating to this Lease shall be in
writing,  effective when  delivered,  or if mailed,  effective on the second day
following mailing, certified mail, postage prepaid, to the address for the party
stated in this Lease or to such other  address  as either  party may  specify by
notice to the other.  Rent shall be payable to Landlord at the same  address and
in the same manner.

    19. ENVIRONMENTAL.

        19.1. DEFINITIONS.  The term "Environmental Law" shall mean any federal,
state or  local  statute,  regulation  or  ordinance  or any  judicial  or other
governmental  order  pertaining  to the  protection  of  health,  safety  or the


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environment.  The term "Hazardous  Substance"  shall mean any hazardous,  toxic,
infectious or radioactive substance,  waste and material as defined or listed by
any Environmental Law and shall include,  without limitation,  petroleum oil and
its fractions.

        19.2. USE OF HAZARDOUS SUBSTANCES.  Tenant shall not cause or permit any
Hazardous Substance to be spilled,  leaked, disposed of or otherwise released on
or under  the  Premises.  Tenant  may use and sell on the  Premises  only  those
Hazardous  Substances  typically used and sold in the prudent and safe operation
of the business  permitted by Paragraph 1  of this Lease.  Tenant may store such
Hazardous  Substances  on the  Premises,  but only in  quantities  necessary  to
satisfy  Tenant's  reasonably  anticipated  needs.  Tenant shall comply with all
Environmental  Laws and exercise the highest degree of care in the use, handling
and storage of Hazardous  Substances and shall take all practicable  measures to
minimize the quantity and  toxicity of  Hazardous  Substances  used,  handled or
stored on the Premises.

        19.3.  NOTICES.  Tenant shall immediately  notify Landlord upon becoming
aware of the  following:  (a) any spill,  leak,  disposal or other  release of a
Hazardous  Substance  on, under or adjacent to the  Premises;  (b) any notice or
communication  from a  governmental  agency or any other person  relating to any
Hazardous Substance on, under or adjacent to the Premises;  or (c) any violation
of any Environmental Law with respect to the Premises or Tenant's  activities on
or in connection with the Premises.

        19.4. SPILLS AND RELEASES.  In the event of a spill,  leak,  disposal or
other release of a Hazardous Substance on or under the Premises caused by Tenant
or any of its contractors,  agents or employees or invitees, or the suspicion or
threat of the  same,  Tenant  shall  (i)  immediately  undertake  all  emergency
response  necessary  to  contain,  cleanup  and  remove the  released  Hazardous
Substance,  (ii) promptly  undertake all  investigatory,  remedial,  removal and
other  response  action  necessary or  appropriate  to ensure that any Hazardous
Substances  contamination is eliminated to Landlord's  reasonable  satisfaction,
and (iii) provide  Landlord copies of all  correspondence  with any governmental
agency  regarding  the  release  (or  threatened  or  suspected  release) or the
response action, a detailed report  documenting all such response action,  and a
certification  that any  contamination  has been  eliminated.  All such response
action  shall be  performed,  all such  reports  shall be prepared  and all such
certifications  shall  be  made  by  an  environmental   consultant   reasonably
acceptable to Landlord.

        19.5.  CONDITION  UPON  TERMINATION.  Upon  expiration  of this Lease or
sooner  termination  of this  Lease for any  reason,  Tenant  shall  remove  all
Hazardous  Substances  and  facilities  used  for the  storage  or  handling  of
Hazardous  Substances  from the  Premises  and  restore  the  affected  areas by
repairing any damage caused by the  installation  or removal of the  facilities.
Following  such  removal,  Tenant shall  certify in writing to Landlord that all
such removal is complete.

        19.6.  ASSIGNMENT  AND  SUBLETTING.  Notwithstanding  the  provisions of
Paragraph 9 of this Lease, it shall not be unreasonable for Landlord to withhold
its  consent to any  assignment,  sublease  or other  transfer  of the  Tenant's
interest  in  this  Lease  if a  proposed  transferee's  anticipated  use of the
Premises  involves the generation,  storage,  use, sale,  treatment,  release or
disposal of any Hazardous Substance.

        19.7. INDEMNITY.

              19.7.1.  BY  TENANT.  Tenant  shall  indemnify,  defend  and  hold
harmless  Landlord,  its  employees and agents,  any persons  holding a security
interest in the Premises,  and the respective  successors and assigns of each of
them from and against any and all claims, demands, liabilities,  damages, fines,
losses,  costs  (including  without  limitation  the cost of any  investigation,
remedial,  removal or other response action required by  Environmental  Law) and
expenses  (including  without  limitation  attorneys'  fees and  expert  fees in
connection  with any  trial,  appeal,  petition  for  review  or  administrative
proceeding)  arising  out of or in any  way  relating  to  the  use,  treatment,
storage, generation, transport, release, leak, spill, disposal or other handling
of Hazardous  Substances  on the  Premises by Tenant or any of its  contractors,
agents or employees or invitees. Tenant's obligations under this paragraph shall
survive the expiration or  termination of this Lease for any reason.  Landlord's
rights  under this  paragraph  are in  addition  to and not in lieu of any other
rights or remedies to which  Landlord  may be entitled  under this  agreement or
otherwise.


N-CREDENCE.rtf / SKB / LMH                                  5Oaks/304, 305 & 306
5/18/98
Page 8 of 12                                                       Hillsboro, OR
<PAGE>

             19.7.2. BY LANDLORD.  Landlord  shall indemnify,  defend  and  hold
harmless  Tenant and its employees and agents and the respective  successors and
assigns  of  each  of them  from  and  against  any  and  all  claims,  demands,
liabilities,  damages,  fines,  losses,  costs (including without limitation the
cost of any investigation,  remedial,  removal or other response action required
by Environmental Law) and expenses (including without limitation attorneys' fees
and expert fees in  connection  with any trial,  appeal,  petition for review or
administrative  proceeding)  arising out of or in any way relating to the actual
or alleged use, treatment, storage, generation, transport, release, leak, spill,
disposal or other handling of Hazardous  Substances on the Premises by Landlord,
or any of its contractors, agents or employees or by Landlord's previous tenants
of the Premises.  Landlord's  obligations under this paragraph shall survive the
expiration or  termination of this Lease for any reason.  Tenant's  rights under
this  paragraph  are in  addition  to and  not in lieu of any  other  rights  or
remedies to which Tenant may be entitled under this Agreement or otherwise.

    20. BROKER REPRESENTATION.

        Each  party  represents and  warrants  to the  other that it has  had no
dealings  with or in any way engaged the  services of any real estate  broker or
agent in connection with the negotiation or execution of this Lease.  Each party
hereby  agrees to indemnify  and hold the other party  harmless from and against
any  and  all  costs,   expenses  and  liabilities  for  commissions  and  other
compensation  claimed by any broker or agent in  connection  herewith  resulting
from breach of the representation and warranty contained in this paragraph.

    21. OPTION TO RENEW.

        If not then in  default,  Tenant  shall  have the option  to renew  this
Lease for two (2) additional  5-year terms by giving Landlord  written notice of
its intent to extend at least  180 days  prior to  expiration  of the  preceding
term. All provisions of this Lease shall apply during the extended term,  except
that rent for the renewal  period shall be an amount  agreed upon by the parties
at least ninety (90) days prior to commencement of the renewal period. If Tenant
elects not to exercise the first 5-year  option  period,  then the second 5-year
option period shall be null and void.

    22. DESIGN OF BUILDING SHELLS.

        Landlord  shall provide  improvements  consisting  of  site improvements
and the  building  shells  for Space One and Space Two.  The Space One  building
shall be designed by Curtis Beattie & Associates. Site improvements for both the
Space One and Space Two  buildings  and the Space Two  building  shells shall be
designed by Group Mackenzie.  Landlord may contract with additional  engineering
firms and design-build contractors as Landlord shall select.

        22.1. The Space One  building  shall  be designed and constructed  using
the  standards set forth in Exhibit B  attached  hereto.  The building  shell of
Space One shall,  from an exterior  appearance  and interior core  standpoint be
substantially in accordance with the floor plans and elevations  attached hereto
as Exhibit E.

        22.2. The Space Two buildings shall be  designed  and  constructed using
using the standards set forth in Exhibit C  attached hereto. The building shells
of Space Two shall, from an exterior appearance standpoint,  be substantially in
accordance with the floor plans and elevations attached hereto as Exhibit F. The
building  shells  of  Space  Two  will be  connected  by a  13,000  square  foot
connection  at a  location  west of the mid  point of the  long  axis of the two
building shells (the "Westerly  Connection") and a 7,800 square  foot connection
at a location east of the mid point of the long axis of the two building  shells
(the "Easterly Connection").

       22.3. The building  shells  (including  the interior  core of  Space One)
shall be designed and approved as follows:

             22.3.1.    Within ten (10) days  following  the full  execution  of
this  Lease  by  the  parties,   Landlord  shall  cause  preliminary  plans  and
specifications (the "Preliminary Review Documents") to be prepared and submitted
to Tenant for review and approval.  Said  Preliminary  Review Documents shall be
sufficiently detailed to indicate the exterior appearance of the buildings,  the


N-CREDENCE.rtf / SKB / LMH                                  5Oaks/304, 305 & 306
5/18/98
Page 9 of 12                                                       Hillsboro, OR

<PAGE>

layout of the interior core elements of Space One, the location of major utility
elements in all  buildings  and on the site,  the general  description  of major
structural  elements  including  roof  structure,  location and size of overhead
doors for Space Two as well as a description of landscape elements for the site.
Tenant shall have five (5) business days  following  receipt of the  Preliminary
Review  Documents to review said  documents and provide review  comments  and/or
approval of the items proposed by Landlord. Following receipt of Tenant's review
comments  Landlord shall within five (5) business days make necessary changes to
conform the Preliminary  Review  Documents to Tenant's review  comments,  and in
areas not conformed,  provide to Tenant Landlord's  reason for  non-conformance.
Following receipt of the Preliminary  Review Documents,  Tenant shall thereafter
have five (5) business  days (the "Final  Review  Period") to review and approve
the revised  documents.  If final  revisions are not acceptable to Tenant by the
end of the Final Review Period, Tenant may, by giving written notice to Landlord
pursuant to  Paragraph 18.6,  terminate  this Lease,  whereupon  Tenant shall be
liable to Landlord for 50% of the cost  incurred by Landlord for all elements of
the Preliminary Review Documents, not to exceed $5,000.00.

              22.3.2.  Tenant shall have the option to cause to be designed  and
constructed a covered  walkway  connecting  Space One to Space Two (the "Covered
Walkway").  The cost of the design and construction of the Covered Walkway shall
be paid by  Tenant.  Tenant  may also  design  landscape  elements  between  the
Easterly  Connection  and the  Westerly  Connection.  The design of the  Covered
Walkway and the landscaped area between the connections  shall be subject to the
reasonable  approval of Landlord and if Landlord and Tenant  cannot agree on the
design of the Covered  Walkway  and/or the landscaped  area between,  and/or the
Easterly and Westerly  Connections,  the dispute shall be settled by arbitration
under Paragraph 24 of this Lease.

              22.3.3.  Following  approval of the Preliminary Review  Documents,
or in the case of  arbitration,  upon the decision by the  arbitrator,  Landlord
shall,  within fifteen (15) business  days,  cause  construction  documents (the
"Construction  Documents") to be commenced.  When prepared, Tenant shall receive
three (3) copies of the Construction  Documents and may within five (5) business
days following  receipt of such documents  provide to Landlord notice in writing
of any  contention by Tenant that the  Construction  Documents do not conform to
the approved  Preliminary  Review Documents.  If Tenant provides such notice and
Landlord refuses to comply with Tenant's request for changes to the Construction
Documents,  then the dispute may be submitted  by either  party for  arbitration
pursuant to Paragraph 24. A request for arbitration must be made within ten (10)
days following  Tenant's notice to Landlord of  non-conformance  provided for in
this  paragraph.  The  decision  of the  arbitrator  shall be binding  upon both
parties. The time taken for such arbitration shall be added to the time Landlord
has for delivery of the Premises.

              22.3.4. Following final approval of the Construction Documents  by
either mutual  agreement or by  arbitration,  Landlord shall promptly pursue the
issuance of all necessary  building permits and shall cause  construction of the
building  shells  to be  undertaken  by  contractors  selected  by  Landlord  at
Landlord's expense.

    23.  TENANT IMPROVEMENTS.

         23.1. Landlord  shall  be  responsible  for  construction   of   tenant
improvements  within   Space  One  in  accordance  with  the  approved Plans and
Specifications called for in this paragraph.  Exhibit D sets forth the standards
for the tenant  improvements to be constructed within Space One. Tenant shall be
responsible for construction of all tenant improvements to be constructed within
Space  Two.  The  tenant  improvements  within  Space One and Space Two shall be
funded through the allowance  provided for in  Paragraph 23.2  below.  All items
charged  against  the  Allowance  shall  be  pre-approved  by  Tenant  prior  to
construction of such items. All  improvements  shall be designed and constructed
using Landlord's  building  standard  finishes or alternate  materials  mutually
acceptable to both Tenant and Landlord. Tenant improvements shall be constructed
using industry standard materials  installed in a good and workmanlike manner by
qualified  craftsmen.  Said tenant  improvements shall be constructed from plans
and specifications (the "Plans and Specifications") prepared by an architectural
firm mutually acceptable to both Landlord and Tenant (the "Architectural  Firm")
which Plans and Specifications  shall be subject to applicable building codes as
interpreted by all governing jurisdictions, including City of Hillsboro, Oregon.



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5/18/98
Page 10 of 12                                                      Hillsboro, OR
<PAGE>

The Plans and Specifications  shall be approved by Landlord within ten (10) days
of  Landlord's  receipt  of  same,  which  approval  shall  not be  unreasonably
withheld.  Changes from  Landlord  approved  Plans and  Specifications  shall be
approved in writing by Landlord.

         23.2. Landlord shall provide Tenant with a tenant improvement allowance
of $3,212,375.00  (the  "Allowance") for all tenant  improvement work to be done
hereunder. The Allowance is based upon the following calculations:

<TABLE>
<S>                   <C>                           <C>                     <C>
Office Space:         $25.00 per square foot for -   71,265 square feet     $1,781,625.00
Manufacturing Space:  $15.00 per square foot for -   87,050 square feet     $1,305,750.00
Warehouse Space:       $5.00 per square foot for -   25,000 square feet     $  125,000.00
                                                    -------                  ------------
Total:                                              183,315 square feet     $3,212,375.00
</TABLE>

               All tenant improvements within Space One shall be charged against
the Allowance.  When Space One Plans and Specifications  have been bid, the cost
of the work shall be reviewed  and approved by Tenant  within ten (10)  business
days of receipt by  Tenant.  The cost of any  subsequent  changes  requested  by
Tenant or of additional work required which is not within the scope of the Plans
and  Specifications  shall be approved by Tenant prior to  commencement  of such
work. If the tenant improvements cannot be constructed within the balance of the
Allowance  remaining after the Space One tenant  improvement costs have been set
aside for  completion  of Space One,  Tenant  agrees to pay its Space Two tenant
improvement  contractor  the amount by which  this cost  exceeds  the  remaining
balance of the Allowance.

          23.3. Landlord  agrees to  amortize up to $1,000,000.00 of  additional
tenant  improvement  costs in excess of the Allowance over  120 months at twelve
(12%) percent  interest.  Amortization of $1,000,000.00  will result in a rental
increase of $14,347.00 (the  "Amortized  Amount") per month as shown in the rent
schedule on Page 1 of this Lease.

          23.4. Tenant shall, as  referenced in  Paragraph 23.2  above, contract
with  a  tenant  improvement   contractor  approved  by  Landlord,  to  complete
improvements  within Space Two in accordance with the Plans and  Specifications.
Tenant shall be responsible for payment of all contractor billings for such work
and will submit proof of such payments to Landlord.  Each proof of payment shall
be accompanied by a copy of the contractor's  most recent draw request presented
on AIA form number G702 or similar.  Landlord shall, within fifteen (15) days of
receipt of  Tenant's  proof of payment,  reimburse  Tenant for amounts up to the
remaining balance of the Allowance as referenced in  Paragraph 23.2  above, plus
any additional funds to be amortized pursuant to Paragraph 23.3 above.

          23.5. Should  Tenant elect to  have  Landlord  amortize an amount less
than  $1,000,000.00,  then the  Amortized  Amount shall be modified by the lease
amendment  referenced  on Page 1,  Line 30 of this Lease using the  amortization
schedule used to set the amortized amount.

          23.6. Landlord shall not charge Tenant any construction or development
fees nor charge any of its employees' time against the Allowance.  Any sums paid
to the  Architectural  Firm or other  consultants  and any out of  pocket  costs
incurred by Landlord as part of the tenant  improvement shall be charged against
the Allowance.

    24.  ARBITRATION OF DESIGN DISPUTE.

         24.1.  Tenant intends to construct a covered  walkway between Space One
and Space Two. Any dispute  regarding the design of the covered  walkway  and/or
the landscaped  area between the Easterly or Westerly  Connection or conformance
of the Space One or Space  Two  building  shell  Construction  Documents  to the
approved  Preliminary  Review  Documents  shall be  decided  by  arbitration  in
accordance with the then current Construction  Industry Arbitration Rules of the
American Arbitration  Association,  unless the parties mutually agree otherwise.
The arbitration  shall take place in Portland,  Oregon,  and shall be subject to
the arbitration statutes of the state of Oregon.  Disputes shall be decided by a
single arbitrator. This agreement to arbitrate shall be specifically enforceable
under the prevailing arbitration law.



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5/18/98
Page 11 of 12                                                      Hillsboro, OR

<PAGE>

         24.2.  Notice of the demand  for arbitration  shall be filed in writing
with the other party to this Agreement. The demand for arbitration shall be made
within ten (10) days following Tenant's notice to Landlord of the existence of a
dispute.

         24.3. The  decision  rendered  by  the arbitrator  shall  be final, and
judgment may be entered upon it in accordance  with  applicable law in any court
having jurisdiction thereof.

     IN WITNESS WHEREOF,  the parties hereto have executed this Agreement on the
respective  dates set opposite  their  signatures  below,  but this Agreement on
behalf of such  party  shall be deemed to have been  dated as of the date  first
above written.

                                 LANDLORD:

                                 PACIFIC REALTY ASSOCIATES, L.P.,
                                 a Delaware limited partnership

                                 By:   PacTrust Realty, Inc.,
                                       a Delaware corporation,
                                       its General Partner

          4/22                           /s/ SAM K. BRIGGS
Date:  -------------, 1998       By: ----------------------------------
                                       Sam K. Briggs
                                       Vice President

                                 Address for Notices/Rent Payments to Landlord:
                                 15350 S.W. Sequoia Parkway, #300-WMPC
                                 Portland, OR  97224


                                 TENANT:

                                 CREDENCE SYSTEMS CORPORATION,
                                 a California corporation


          APRIL 16                      /s/ W.R. BOTTOMS
Date:  --------------, 1998      By: ----------------------------------
                                 Name:  W.R. Bottoms
                                 Title: CEO



Date:  ________________, 1998    By:
                                 Name:
                                 Title:


                                 Address for Legal Notices to Tenant:



                                 Address for Invoices to Tenant:



                                 Tenant Employer Identification Number:






N-CREDENCE.rtf / SKB / LMH                                  5Oaks/304, 305 & 306
5/18/98
Page 12 of 12                                                      Hillsboro, OR
<PAGE>

                                   EXHIBIT "A"



MAP OF FIVE OAKS WEST BUSINESS PARK
HILLSBORO, OREGON

Not to Scale.

<PAGE>

                                   EXHIBIT "B"


                          CREDENCE SYSTEMS CORPORATION
                    BUILDING SHELL DESCRIPTION AND DEFINITION
                           OFFICE BUILDING (SPACE ONE)
                          FIVE OAKS WEST BUSINESS PARK


                                 March 27, 1998


GENERAL -

The building architectural  features to meet ADA compliance  requirements at the
time of project  design.  Any design  changes  subsequent to Final  Construction
Documents shall be approved in writing by Tenant's designated representative.

SITEWORK -

All  site  improvements  required  for a  complete  and  operable  facility  are
included.  Sitework includes  utilities such as water,  sanitary sewer,  natural
gas,  power,  and phone system  conduits.  Sitework  also  includes  storm water
collection,   detention,  and  disposal;  asphalt  paving;  concrete  sidewalks;
landscaping; and site lighting.

BUILDING ENVELOPE -

The building  envelope includes shallow,  spread footing  foundations;  concrete
slab on grade;  composite steel and concrete upper floor structures;  steel roof
structure;  structural metal stud exterior wall framing;  exterior brick veneer;
and  exterior  aluminum  and glass window and  storefront  systems.  The roofing
system shall be constructed  using rigid  insulation  and built-up  roofing with
mineral cap sheet using a steel roof structure.

BUILDING INTERIOR IMPROVEMENTS -

     EXTERIOR   WALLS:   Exterior  walls  shall  be  insulated  with  R-19  batt
     insulation.  Vapor barrier and gypsum board shall be provided and installed
     under tenant improvement construction.

     CORRIDOR  AND COMMON  AREA  WALLS:  Shell  construction  includes  framing,
     insulation,  and finished gypsum board on the improved side of corridor and
     common area walls (rest rooms, stairs,  utility rooms, etc.).  Corridor and
     other common area  walls shall  be  constructed  using 3-5/8" metal  studs,
     3 1/2" fiberglass batt  insulation,  and 5/8" smooth finished gypsum board.
     Exposed  framing  and  insulation  will  remain  facing  areas  for  tenant
     improvements.

     BUILDING COLUMNS:  Building structural columns are left exposed under shell
     construction.

     INTERIOR  PARTITIONS:   Interior  partitions  are  not  included  in  shell
     construction.

     INTERIOR DOORS:  Common area interior doors shall be nominal 3'-0" by 9'-0"
     solid core ribbon sapele,  stained to a dark cherry wood finish  ("Building
     Standard Finish") in Timely II door frames,  factory painted to approximate
     door color ("Building Standard Frame"). Door hardware for common area doors
     to include 2 pair butts,  Schlage "D" series (or similar) lever latch,  and
     wall  stop for each  door.  Door  hardware  finish  to be  polished  brass.
     Interior   doors  for   tenant   areas  are  part  of  tenant   improvement
     construction.



N-CREDEN-B.DOC / SKB / LMH / Exhibit B                                     5Oaks
4/9/98
Page 1 of 3                                                        Hillsboro, OR

<PAGE>

     ACOUSTICAL  CEILINGS:  The acoustical  ceiling  suspension  system shall be
     installed in a 4' by 4' grid, and ceiling tile and remaining tee's supplied
     under building shell construction. Tenant improvement construction includes
     installation of 2' by 2' tegular edge ceiling tile (Armstrong Minatone #705
     Fissured) and necessary tee's in the building shell ceiling grid.

     PAINTING:  All common area interior walls and ceilings shall receive primer
     and two coats of finish paint on improved surfaces.  Painting within tenant
     areas is part of tenant improvement construction.

     FLOOR COVERINGS:  All improved common areas shall receive appropriate floor
     covering.  Carpet shall be provided at corridors  and stairs;  ceramic tile
     and carpet shall be provided in toilet rooms; and exposed,  sealed concrete
     will be provided in elevator  machine,  janitor,  fire sprinkler riser, and
     electrical  rooms.   Carpet  shall  be  Atlas  "Custom  Multituff,"  Bently
     "Mirano," or equal, over pad, at common area locations except for fire exit
     stairs. Fire exit stairs to receive 26 ounce direct glue loop carpet, Atlas
     "Oxford Place," or equal.  Wainscot wall tile in toilet rooms to be Daltile
     4 1/4" by 4 1/4" glazed  ceramic with  Group 2 color.  Floor tile in toilet
     rooms to be Daltile 2" by 2" unglazed  porcelain with Group 2 color.  Floor
     covering within tenant areas is part of tenant improvement construction.

     WINDOW   COVERINGS:   Window   coverings  are  not  included   under  shell
     construction.

     CABINETS AND MILLWORK: Cabinets and other special millwork are not included
     under shell construction.

     APPLIANCES: The cost of appliances such as dishwashers,  refrigerators, and
     microwave  ovens,  and vending  machines,  coffee  makers or other  similar
     equipment are part of tenant improvement costs.

     FURNITURE AND ACCESSORIES:  Furniture,  coat hooks,  desk partitions,  tack
     boards,  projection  screens,  fire  extinguishers and cabinets,  and other
     miscellaneous accessories shall be provided and installed by tenant.

     SIGNAGE: Toilet room signs are included. Toilet room signs to approximately
     8" by 8",  constructed  of  phenolic  base with white  raised  letters  and
     graphics.  Signs to be ADA compliant with Grade 2  Braille  feature.  Other
     interior and exterior signage shall be provided and installed by tenant.

     ELEVATORS:  Two (2) each, 3-stop hydraulic  elevators are included by Otis,
     Dover,  Schindler,  Montgomery,  or  equal.  Each car to have  3,000  pound
     capacity at 150 f.p.m. Doors, door frames and control panels to be finished
     in satin  bronze.  Interior  cab  panels to be  constructed  of wood  grain
     laminate. Interior cab ceiling to be mirror bronze finish with incandescent
     downlights. Cab protection blankets for moving are included.

     PLUMBING:  Shell  plumbing  work  includes  underslab  sanitary  sewer  and
     overhead  water  piping to  common  area  plumbing  fixtures.  Common  area
     plumbing  fixtures include water closets,  urinals,  and lavatories in main
     toilet rooms on each floor, a drinking fountain  (handicap  accessible) for
     each floor, one janitor sink, and one water heater. Each Men's room to have
     two (2)  wall-hung  urinals,  two (2) water  closets,  and two (2)  counter
     mounted  lavatories.  Each Women's room to have four (4) water  closets and
     two (2) counter  mounted  lavatories.  Two (2) "wet"  columns are  included
     within the tenant space. Wet columns include waste and vent piping and cold
     water only. Extension of plumbing within tenant areas is tenant improvement
     work.

     FIRE PROTECTION:  Building shell fire protection system includes service to
     the  building  and  overhead  sprinkler  piping.  Tenant  improvement  fire
     protection work includes the addition of "drops" to the area below ceilings
     and chrome, semi-recessed sprinkler heads. Special fire suppression systems
     such as intergen or  preaction  systems,  if  required,  are part of tenant
     improvement work.


- -CREDEN-B.DOC / SKB / LMH / Exhibit B                                     5Oaks
4/9/98
Page 2 of 3                                                        Hillsboro, OR



<PAGE>

     H.V.A.C.:  Building shell construction includes a closed loop, water-source
     heat pump system with high  efficiency  cooling tower and boiler.  Roof-top
     cooling  tower has  approximately  200 ton  capacity.  Gas fired boiler has
     approximately 1,000,000 BTU (input) capacity. System includes DDC automated
     control  with  central  panel  operation  of energy  management  functions.
     Modulating  outside air supply and exhaust is managed by the DDC controller
     and  ducted to and from each zone.  Supply and return air main trunk  ducts
     and main water loop piping shall be provided  under the building shell HVAC
     work. Heat pumps,  thermostats,  duct extensions,  connections to the water
     loop,   and  supply  and  return  air  diffusers  are  tenant   improvement
     construction.  Special  computer  room,  conference  room,  and lunch  room
     cooling and ventilation, if required, are tenant improvement work.

     ELECTRICAL:   Building   shell   electrical   work   includes  a  1200 amp,
     277/480 volt, 3-phase, 4-wire main distribution panel with wires in conduit
     to electrical  distribution panels on each floor. Building shell electrical
     work also  includes  lighting  and  miscellaneous  convenience  outlets  in
     building  common areas  (i.e.,  toilet  rooms,  electrical  rooms,  stairs,
     utility rooms, etc.). Tenant improvement  electrical work includes breakers
     in shell electrical panels,  extension of power from the electrical room to
     the tenant space,  the addition of any tenant  subpanels  within the space,
     and furnishing and installation of lighting and power outlets.

     Three-tube  fluorescent  light fixtures with 18-cell parabolic lenses shall
     be supplied under building shell construction.  One fixture is included for
     each 90 square feet of tenant office area. Fixtures shall be stocked on the
     floor for installation and wiring under tenant improvement construction.

     Generators, uninterruptable power supplies, and special electrical work for
     computer and phone systems, if required, are tenant improvement work.

     FIRE ALARM:  Fire alarm system  includes  flow and tamper  switches for the
     sprinkler  system and smoke  detection  only as required  for  elevator and
     common area features. Fire alarm systems related to tenant improvements are
     not part of shell construction.

     SECURITY  SYSTEMS:  Security  systems  shall be provided  and  installed by
     tenant.

     TELEPHONE  AND COMPUTER  SYSTEMS:  Telephone,  data,  and  computer  system
     equipment and wiring shall be provided and installed by tenant.













N-CREDEN-B.DOC / SKB / LMH / Exhibit B                                     5Oaks
4/9/98
Page 3 of 3                                                        Hillsboro, OR

<PAGE>

                                  EXHIBIT "C"


                          CREDENCE SYSTEMS CORPORATION
                    BUILDING SHELL DESCRIPTION AND DEFINITION
                WAREHOUSE AND MANUFACTURING BUILDINGS (SPACE TWO)
                          FIVE OAKS WEST BUSINESS PARK


                                 April 10, 1998



SITEWORK -

All  site  improvements  required  for a  complete  and  operable  facility  are
included.  Sitework includes  utilities such as water,  sanitary sewer,  natural
gas,  power,  and phone system  conduits.  Sitework  also  includes  storm water
collection,   detention,  and  disposal;  asphalt  paving;  concrete  sidewalks;
landscaping; and site lighting.

BUILDING ENVELOPE -

The building  envelope includes shallow,  spread footing  foundations;  concrete
slab on grade;  steel and wood roof structure;  tilt-up concrete  exterior walls
with partial  brick veneer,  Mutual  Materials  "Inca" or similar;  and exterior
aluminum and glass window and storefront  systems,  U.S. Aluminum painted frames
with PPG insulated solarcool azurlite glass. The roof membrane shall be built-up
roofing with mineral cap sheet.

BUILDING SHELL -

     TENANT  ENTRIES AND  MAN-DOORS:  Tenant doors in aluminum  systems  include
     single  storefront  doors  with  push-pull  hardware  and  deadbolt  locks.
     Exterior  man-doors  in  concrete  and brick  walls shall be 3' x 7' hollow
     metal with  Schlage "D" series  lever  locks.  Special  access and security
     systems,  card lock entries, and other special door hardware,  if required,
     are part of tenant improvement work.

     EXTERIOR  WALLS:  Exterior  concrete walls within the building shall remain
     unpainted,  exposed  concrete.  Metal stud furring  and/or  insulation  for
     exterior concrete walls is part of tenant improvement work. Framed exterior
     walls  shall be  insulated  with R-19 batt  insulation.  Vapor  barrier and
     gypsum  board for framed  exterior  walls shall be provided  and  installed
     under tenant improvement construction.

     ROOF  STRUCTURE:  The roof structure  shall be  constructed  using open web
     steel  girders  and  joists,  wood  sub-purlins,  and  plywood  deck.  Roof
     structure  is insulated  with R-19  insulation  and shall  remain  exposed.
     Painting of roof structure and supporting elements,  if required,  shall be
     done under tenant improvement work.

     OVERHEAD DOORS: Four (4) each, 9' by 10' dock doors are included.  Exterior
     dock doors shall be steel sectional type, motor operated,  vertical or high
     lift  configuration.  Approximately  50 linear  feet  of  steel  canopy  is
     included  over the loading dock doors.  Canopy to extend  approximately  3'
     from  building  face. Up to four (4) drive-in  doors,  each 12' by 14', are
     included.  Drive-in doors shall be steel  sectional  type,  chain operated,
     vertical or high lift configuration and shall be located in concrete panels
     which do not have brick veneer facing.

     FLOORING: Warehouse floor shall be exposed, sealed concrete.

     PAINTING:  All exterior  concrete walls will be painted with exterior latex
     paint.  Exterior  masonry  walls to  receive  clear  sealer.  Interiors  of
     buildings shall remain unpainted.

     WINDOW   COVERINGS:   Window   coverings  are  not  included   under  shell
     construction.

N-Creden-c.doc / SKB / LMH / Exhibit C                                     5Oaks
5/26/98
Page 1 of 2                                                        Hillsboro, OR

<PAGE>


     PLUMBING:  One 4" diameter  sanitary  sewer  waste line shall be  installed
     under slab running the entire length of each building.  A 1-1/2"  insulated
     overhead  copper  water line shall be  installed  below the roof  structure
     directly above the sanitary sewer. Any other water,  waste, and vent piping
     and furnishing and installation of plumbing fixtures is tenant  improvement
     work. Air piping, gas piping,  process piping, and other special piping, if
     required, shall be part of tenant improvement work.

     FIRE PROTECTION:  Building shell fire protection system includes service to
     the buildings and overhead  sprinkler piping and heads. The system shall be
     designed for Ordinary Hazard, Group 2 occupancies.  Tenant improvement fire
     protection work includes the addition of "drops" to the area below ceilings
     and chrome, semi-recessed sprinkler heads. Special fire suppression systems
     such as intergen or  preaction  systems,  if  required,  are part of tenant
     improvement work.

     H.V.A.C.:   HVAC  systems  shall  be  installed  under  tenant  improvement
     construction.

     ELECTRICAL:  Building shell electrical work includes a 6000 Amp (2 building
     total), 277/480 Volt, 3-phase main electrical service. Site lighting in the
     vicinity  of the  buildings  shall  be  served  from the  shell  electrical
     service.  Tenant improvement electrical work includes distribution of power
     from the main building  service to tenant subpanels and the addition of any
     tenant  subpanels within the tenant space.  Generators and UPS systems,  if
     required,  are part of tenant  improvement work.  Interior  electrical work
     shall be installed under tenant improvement construction.

     FIRE  ALARM:  The  fire  alarm  system  includes  flow  and  tamper  switch
     monitoring  for the sprinkler  system only.  Fire alarm systems  related to
     tenant improvements are not part of shell construction.

     SECURITY  SYSTEMS:  Security  systems  shall be provided  and  installed by
     tenant.

     TELEPHONE  AND COMPUTER  SYSTEMS:  Telephone,  data,  and  computer  system
     equipment and wiring shall be provided and installed by tenant.









N-Creden-c.doc / SKB / LMH / Exhibit C                                     5Oaks
5/26/98
Page 2 of 2                                                        Hillsboro, OR

<PAGE>

                                   EXHIBIT "D"


                          CREDENCE SYSTEMS CORPORATION
                          TENANT IMPROVEMENT STANDARDS
                           OFFICE BUILDING (SPACE ONE)

                          FIVE OAKS WEST BUSINESS PARK

                                 April 10, 1998


GENERAL -

Items noted as "excluded"  are items which  Landlord will consider for inclusion
but are not included in a typical  improvement and do not generally fit within a
building standard tenant improvement allowance.

CONCRETE -

Existing  concrete slab on grade shall be sawcut,  removed,  and poured back for
underslab  utilities  as  necessary.  Existing  upper  floor slabs shall be core
drilled for utilities as necessary;  new penetrations in upper floor slabs shall
be sealed tight.

DEMISING WALLS -

Demising  walls are not  applicable to this project.  When used,  demising walls
shall  extend from floor level to the  underside of the ceiling  grid.  Demising
walls shall be constructed using 3-5/8" metal studs,  3-1/2" unfaced  fiberglass
batt  insulation,  and 5/8" smooth  finished gypsum board on each side. Raco FS4
black reveal header shall be used at  connection  of walls to ceiling.  4' wide,
3-1/2"  unfaced  fiberglass  batt  insulation  shall be provided  above ceiling,
centered over demising walls.

EXTERIOR WALLS -

Exterior  walls shall  receive 5/8" smooth  finished  gypsum board over existing
framing and thermal  insulation.  Raco FS4MB black recessed reveal molding to be
used at connections of walls to ceilings.

CORRIDOR AND COMMON AREA WALLS -

Corridor and other common area walls (rest rooms,  stairs,  utility rooms, etc.)
shall be constructed  using 3-5/8" metal studs,  3-1/2" unfaced  fiberglass batt
insulation,  and 5/8" smooth finished gypsum board each side. Shell construction
includes framing,  insulation, and finished gypsum board on the corridor side of
corridor  walls.  Tenant  improvement   construction   includes  furnishing  and
installation  of smooth finished gypsum board on the tenant side of corridor and
common area walls.

BUILDING COLUMNS -

Building  structural  columns  shall be furred with metal stud  framing and 5/8"
smooth  finished  gypsum board.  Building "wet" columns to be furred,  insulated
with high density sound insulation, and covered with 5/8" smooth finished gypsum
board.  Raco FS4MB black  recessed  reveal  molding to be used at connections of
columns to ceilings.

INTERIOR PARTITIONS -

Interior  partitions  shall extend from floor level to the  underside of ceiling
grid. Interior partitions shall be constructed using 3-5/8" metal studs and 5/8"
smooth  finished  gypsum board each side.  Raco FS4 black reveal header shall be
used at connection of walls to ceiling.




N-CREDEN-D.DOC/SKB/LMH/Exhibit D                                           5Oaks
4/10/98
Page 1 of 4                                                        Hillsboro, OR


<PAGE>

INSULATION -

3-1/2" unfaced fiberglass batt insulation shall be provided in walls surrounding
conference and lunch rooms.  Insulation  around private offices is excluded.  4'
wide, 3-1/2" unfaced fiberglass batt insulation shall be provided above ceiling,
centered above walls receiving insulation.

INTERIOR DOORS -

Interior doors shall be nominal 3'-0" by 9'-0" solid core ribbon sapele, stained
to a dark  cherry  wood finish  ("Building  Standard  Finish") in Timely II door
frames,  factory painted to approximate door color ("Building  Standard Frame").
Door  hardware to include 2 pair butts,  Schlage "AL" series (or similar)  lever
latch, and wall stop for each door. Door hardware finish to be polished brass.

RELITES -

Relites are not included for standard tenant  improvements.  When used,  relites
shall include 1/4" tempered glass in Timely II frames,  factory painted to match
door frames.

SUITE ENTRIES -

Suite entries are not applicable to this project.  When used,  suite entry shall
include a nominal  3'-0" by 9'-0"  solid core  ribbon  sapele  door,  stained to
Building  Standard Finish in Building  Standard Frame.  Door hardware to include
closer,  butts,  Schlage  "D" series (or  similar)  lever lock,  and stop.  Door
hardware  finish to be polished  brass.  Glass doors,  card entry  systems,  and
special access systems shall be supplied and installed by tenant.

FOLDING PARTITIONS AND OPERABLE WALLS -

Folding  partitions  and operable  walls are not  included  for standard  tenant
improvements.

ACOUSTICAL CEILINGS -

The acoustical  ceiling suspension system shall be installed in a 4' by 4' grid,
and ceiling tile and remaining tee's supplied under building shell construction.
Tenant area construction  includes installation of 2' by 2' tegular edge ceiling
tile  (Armstrong  Minatone #705  Fissured)  and necessary  tee's in the building
shell ceiling grid.

PAINTING -

All interior  walls shall receive  primer and two coats of finish  paint.  Paint
color is to match approved drawdowns.

WALL COVERING -

Vinyl,  fabric,  tile,  and other wall  coverings  are not included for standard
tenant improvements.

FLOOR COVERINGS -

Floor  covering  colors  shall be selected by Tenant  from  Landlord's  standard
finish  options.  Carpet shall be 30 oz. cut pile or 26 oz. level loop. Cut pile
carpet shall be installed on carpet pad.  Armstrong Exelon or equal VCT shall be
installed in lunch  rooms,  copy rooms,  storage  rooms,  and other  appropriate
locations.   Sheet  vinyl   flooring  is  not  included   for  standard   tenant
improvements.  Rubber base to be 4" in continuous lengths. Coved base to be used
in areas with resilient flooring; flat base to be used in carpeted areas. Quarry
or ceramic tiles, wood flooring, raised computer floors, and other special floor
finishes are not included for standard tenant improvements.

WINDOW COVERINGS -

Building Standard window covering  (off-white,  non-perforated,  vertical louver
blinds)  shall be provided at exterior  windows.  Window  coverings  on interior
relites are not included for standard tenant improvements.


N-CREDEN-D.DOC/SKB/LMH/Exhibit D                                           5Oaks
4/10/98
Page 2 of 4                                                        Hillsboro, OR


<PAGE>

CABINETS AND MILLWORK -

Cabinet work includes  lunch/break room upper and lower units and cabinets for a
work/copy room only.  Built-in desks,  shelving,  and furniture are not included
for standard  tenant  improvements.  Tenant cabinets to be constructed to A.W.I.
standards with plastic laminate tops,  fronts,  and sides,  color as selected by
Tenant  from  standard  high  pressure  laminates.  Cabinet  interiors  shall be
constructed  of melamine or standard low pressure  laminate.  Concealed  hinges,
heavy-duty drawer hardware,  and wire pulls shall be included for all drawers or
doors.  One (1) 4' x 4' plywood  phone board is included.  Wall  paneling,  wood
base,  shelving,  and other special millwork items are not included for standard
tenant improvements.

APPLIANCES -

Appliances such as dishwashers,  refrigerators, and microwave ovens, and vending
machines,  coffee  makers  or other  similar  equipment  shall be  supplied  and
installed by tenant.

FURNITURE AND ACCESSORIES -

Furniture,  coat hooks, desk partitions,  tack boards,  projection screens, fire
extinguishers  and  cabinets,  and  other  miscellaneous  accessories  shall  be
supplied and installed by tenant.

SIGNAGE -

Interior and exterior signage shall be supplied and installed by tenant.

PLUMBING -

Plumbing within a tenant space is not included for standard tenant improvements.
If tenant elects to have  plumbing,  it shall be connected to existing  plumbing
services.  Available tie-in locations include two (2) building "wet" columns and
the central utility room and rest room locations.  All above slab waste and vent
piping to be cast iron.  When used,  typical  lunch room sink to be Elkay CR2522
with Delta 100 faucet.

FIRE PROTECTION -

Fire  protection  system  shall be modified as required  for tenant  improvement
layout.  Building shell fire protection  system includes service to the building
and overhead sprinkler piping.  Tenant improvement fire protection work includes
the addition of "drops" to ceilings and chrome,  semi-recessed  sprinkler heads.
Special fire suppression  systems such as intergen or preaction  systems are not
included for standard tenant improvements.

H.V.A.C. -

Heating,  ventilation,  and air conditioning  systems shall be extended to serve
the tenant  improvement  layout.  The  building  shell  includes a closed  loop,
water-source  heat pump system with high  efficiency  cooling  tower and boiler.
System  includes DDC automated  control with central  panel  operation of energy
management  functions.  Modulating  outside air supply and exhaust is managed by
the DDC controller and ducted to and from each zone.  Supply and return air main
trunk ducts and main water loop  piping  shall be  provided  under the  building
shell HVAC work. Heat pumps,  thermostats,  duct extensions,  connections to the
water loop,  and supply and return air  diffusers  shall be added  under  tenant
improvement construction.  Tenant spaces to be connected to dedicated channel of
the DDC control  system with  programmable  override for after hour use.  Tenant
HVAC zones to be provided 1 each per approximate  1000 square feet. Each zone to
be  thermostatically  controlled.  Special  computer room,  conference room, and
lunch  room  cooling  and  ventilation  are not  included  for  standard  tenant
improvements.


- -CREDEN-D.DOC/SKB/LMH/Exhibit D                                           5Oaks
4/10/98
Page 3 of 4                                                        Hillsboro, OR


<PAGE>

ELECTRICAL -

     Building  shell  electrical  work  includes  the main  building  electrical
     service  with wires in conduit to  electrical  distribution  panels on each
     floor.  Tenant  improvement  electrical  work  includes  breakers  in shell
     electrical  panels,  extension  of power  from the  electrical  room to the
     tenant space,  the addition of any tenant  subpanels  within the space, and
     furnishing and installation of lighting and power outlets.

     Lighting shall be provided  using 2' by 4' fluorescent  light fixtures with
     18-cell  parabolic  lenses.  Wattage available for lighting for each tenant
     space is governed by the State of Oregon Energy Code. Special architectural
     lighting (track lighting,  spot lighting,  down lights, wall sconces, etc.)
     and dual level switching are not included for standard tenant improvements.
     Lighting  lamps,  ballasts,  and  controls  shall  meet  electrical  energy
     consumption code requirements.  Duplex outlets shall be provided 1 each per
     120 square feet of Tenant area.

     Power  connections to Tenant desk partitions to be provided at wall, floor,
     or power pole locations only; wiring within desk partitions is not included
     for standard tenant  improvements.  Mud rings with pull strings to the area
     above  ceiling  shall be provided 1 each per 240 square feet of Tenant area
     for  Tenant  installed   telephone  and  data  wiring.   Cover  plates  and
     receptacles  for telephone and data wiring shall be provided by the Tenant.
     Generators, uninterruptable power supplies, and special electrical work for
     computer  and  phone   systems  are  not   included  for  standard   tenant
     improvements.

FIRE ALARM -

Fire alarm and smoke  detection  systems  shall be  provided  if required by the
local governing jurisdictions.

SECURITY SYSTEMS -

Security systems shall be provided and installed by tenant.

TELEPHONE AND COMPUTER SYSTEMS -

Telephone,  data, and computer system equipment and wiring shall be provided and
installed by tenant.
















N-CREDEN-D.DOC/SKB/LMH/Exhibit D                                           5Oaks
4/10/98
Page 4 of 4                                                        Hillsboro, OR

<PAGE>

                                  "EXHIBIT E"


                          CREDENCE SYSTEMS CORPORATION
                   BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                          OFFICE BUILDING (SPACE ONE)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - WEST ELEVATION AND PARTIAL SOUTH ELEVATION SECTIONS 1 & 2

<PAGE>

                                  "EXHIBIT E"


                          CREDENCE SYSTEMS CORPORATION
                   BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                          OFFICE BUILDING (SPACE ONE)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - EAST ELEVATION AND PARTIAL NORTH ELEVATION SECTIONS 1 & 2


<PAGE>

                                  "EXHIBIT E"


                          CREDENCE SYSTEMS CORPORATION
                   BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                          OFFICE BUILDING (SPACE ONE)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - FIRST FLOOR PLAN

<PAGE>

                                  "EXHIBIT E"


                          CREDENCE SYSTEMS CORPORATION
                   BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                          OFFICE BUILDING (SPACE ONE)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - SECOND FLOOR PLAN

<PAGE>


                                  "EXHIBIT E"


                          CREDENCE SYSTEMS CORPORATION
                   BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                          OFFICE BUILDING (SPACE ONE)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - THIRD FLOOR PLAN


<PAGE>

                                  "EXHIBIT F"


                          CREDENCE SYSTEMS CORPORATION
                    BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                WAREHOUSE AND MANUFACTURING BUILDINGS (SPACE TWO)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - SOUTH ELEVATION BLDG. 306
Plan diagram - SOUTH ELEVATION BLDG. 306

<PAGE>


                                  "EXHIBIT F"


                          CREDENCE SYSTEMS CORPORATION
                    BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                WAREHOUSE AND MANUFACTURING BUILDINGS (SPACE TWO)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - WEST ELEVATION BLDG. 305 AND 306
Plan diagram - EAST ELEVATION BLDG. 305 AND 306

<PAGE>


                                  "EXHIBIT F"


                          CREDENCE SYSTEMS CORPORATION
                    BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                WAREHOUSE AND MANUFACTURING BUILDINGS (SPACE TWO)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - FLOOR PLAN BUILDING 305

<PAGE>


                                  "EXHIBIT F"


                          CREDENCE SYSTEMS CORPORATION
                    BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                WAREHOUSE AND MANUFACTURING BUILDINGS (SPACE TWO)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - FLOOR PLAN BUILDING 306



<PAGE>

                                 LEASE AMENDMENT



DATED:     April 17, 1998

BETWEEN:   PACIFIC REALTY ASSOCIATES, L.P.,
           a Delaware limited partnership                              LANDLORD

AND:       CREDENCE SYSTEMS CORPORATION,
           a California corporation, hereinafter referred to as          TENANT



          By written  lease dated  April 10,  1998,  Tenant leased from Landlord
total  of  approximately  183,315 square  feet of  warehouse  and  office  space
comprised of approximately 71,265 square feet of office space located in a three
(3) story office building ("Space One") and approximately 112,050 square feet of
warehouse and  manufacturing  space  located in two (2)  connected  single story
buildings  ("Space Two")  located at Five Oaks West Business  Park, on Pine Farm
Road in Hillsboro,  Oregon (and generally as located on the attached Exhibit A).
Such  document is  hereinafter  referred to as the  "Lease."  The Lease  expires
March 31, 2014.

          Tenant now wishes to amend the Lease.

          NOW, THEREFORE, the parties agree as follows:

          1. Exhibit A shall be modified by the new Exhibit A which is attached
hereto.

          2. On Exhibit C,  the paragraph titled "SITEWORK" shall be modified to
include the following language:  "ASPHALT PAVING: 2-1/2" of asphalt paving shall
be provided over 6" crushed rock base in automobile  traffic and parking  areas,
and 3" of asphalt  paving  shall be provided  over 9" crushed rock base in truck
loading dock and maneuvering areas in accordance with the  recommendation of the
geotechnical engineer."

          3. On  Exhibit C,  the  paragraph  titled  "BUILDING  SHELL"  shall be
modified  to  include  the  following  language:  "CONCRETE  SLAB ON GRADE:  The
concrete  slab  on  grade  shall  be  5"  thick,   unreinforced  concrete,  with
compressive strength design of 3000 psi at 28 days. Seismic reinforcing steel is
included along the building perimeter if required by code.  Interior floor slabs
to be smooth trowel finished."

          4. The  following  language  shall be included in  Exhibit C:  "TENANT
IMPROVEMENTS - FLOOR SLAB RECESS:  A recessed floor slab shall be constructed if
requested by Tenant in the location  indicated on the attached C-1. The finished
surface of the  recessed  floor shall be 12" maximum  below the  adjacent  floor
surfaces. The recessed floor will be 5" thick, unreinforced concrete with smooth
trowel  finish.  Raised  floor  systems  are  not  included.   Tenant  shall  be
responsible for the cost of filling in the recess with smooth finished  concrete
upon lease termination or earlier vacation of the premises."

          5.  Paragraph  6.2.  shall  be  deleted  and  the  following  language
substituted:  "Tenant shall carry general  liability  insurance on an occurrence
basis with combined  single limits of not less than  $1,000,000.  Landlord shall
have the right to require  Tenant to increase this minimum  liability  insurance
limit by such  reasonable  amounts  as may be  required  to  adequately  protect
Landlord and Tenant in the future as a result of general  increases in liability
awards in the courts but in no event shall Landlord be allowed to require Tenant
to carry more than  $5,000,000 of liability  insurance.  Such insurance shall be
provided by an insurance carrier reasonably  acceptable to Landlord and shall be
evidenced by a certificate  delivered to Landlord stating that the coverage will
not be canceled or materially  altered  without ten (10) days'  advance  written
notice to Landlord.  Landlord  shall be named as an  additional  insured on such
policy,   but  only  with  respect  to  the  indemnity   granted  by  Tenant  in
Paragraph 6.1 above."

          6. Except as expressly  modified hereby,  all terms of the Lease shall
remain in full force and effect and shall continue through the existing term.



N-CREDENCE.DOC/SKB/LMH                                      5Oaks/304, 305 & 306
4/17/98
Page 1 of 2                                                        Hillsboro, OR


<PAGE>

          IN WITNESS WHEREOF, the parties hereto have executed this Agreement on
the respective dates set opposite their signatures  below, but this Agreement on
behalf of such  party  shall be deemed to have been  dated as of the date  first
above written.

                                 LANDLORD:

                                 PACIFIC REALTY ASSOCIATES, L.P.,
                                 a Delaware limited partnership

                                 By:   PacTrust Realty, Inc.,
                                       a Delaware corporation,
                                       its General Partner

          4/22                           /s/ SAM K. BRIGGS
Date:  -------------, 1998       By: ----------------------------------
                                       Sam K. Briggs
                                       Vice President



                                 TENANT:

                                 CREDENCE SYSTEMS CORPORATION,
                                 a California corporation


          APRIL 20                        /s/ W.R. BOTTOMS
Date:  --------------, 1998      By: ----------------------------------
                                 Name:  W.R. Bottoms
                                 Title: CEO










N-CREDENCE.DOC/SKB/LMH                                      5Oaks/304, 305 & 306
4/17/98
Page 2 of 2                                                        Hillsboro, OR

<PAGE>


                                  "EXHIBIT C-1"


                          CREDENCE SYSTEMS CORPORATION
                    BUILDING SHELL FLOOR PLANS AND ELEVATIONS
                WAREHOUSE AND MANUFACTURING BUILDINGS (SPACE TWO)
                          FIVE OAKS WEST BUSINESS PARK


Plan diagram - FLOOR PLAN BUIDLING 306







N-CREDEN-F.doc / SKB / LMH /Exhibit C-1                                    5Oaks
5/20/98
Page 1 of 1                                                        Hillsboro, OR

<TABLE> <S> <C>

<ARTICLE>                5
<LEGEND>
This schedule  contains summary  financial  information  extracted from Credence
Systems 2nd Quarter  10-Q and is  qualified in its entirety by reference to such
financial statements.
</LEGEND>
<MULTIPLIER>               1,000
       
<S>                          <C>
<PERIOD-TYPE>                6-MOS
<FISCAL-YEAR-END>            OCT-31-1998
<PERIOD-START>               NOV-01-1997
<PERIOD-END>                 APR-30-1998
<CASH>                            70,853
<SECURITIES>                      78,813
<RECEIVABLES>                     63,263
<ALLOWANCES>                       2,493
<INVENTORY>                       52,723
<CURRENT-ASSETS>                 276,559
<PP&E>                            86,098
<DEPRECIATION>                    40,168
<TOTAL-ASSETS>                   369,935
<CURRENT-LIABILITIES>             41,609
<BONDS>                          115,000
                  0
                            0
<COMMON>                              22
<OTHER-SE>                       213,528
<TOTAL-LIABILITY-AND-EQUITY>     369,935
<SALES>                          157,035
<TOTAL-REVENUES>                 157,035
<CGS>                             67,102
<TOTAL-COSTS>                     67,102
<OTHER-EXPENSES>                  63,963
<LOSS-PROVISION>                       0
<INTEREST-EXPENSE>                 3,300
<INCOME-PRETAX>                   27,202
<INCOME-TAX>                       9,224
<INCOME-CONTINUING>               17,978
<DISCONTINUED>                         0
<EXTRAORDINARY>                        0
<CHANGES>                              0
<NET-INCOME>                      17,978
<EPS-PRIMARY>                        .83
<EPS-DILUTED>                        .81
        

</TABLE>


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