Exhibit 99.1



FOR RELEASE ON FEBRUARY 23, 2005
                                                      Contact:  Paul Nolan, CFO
                                                      Nanometrics, Inc.
                                                      408.435.9600 x122



NANOMETRICS ANNOUNCES RECORD FINANCIAL RESULTS FOR 2004


Milpitas,  California,  February 23, 2005 -  Nanometrics  Incorporated  (NASDAQ:
NANO) today reported  financial results for the fourth quarter and year ended on
January 1, 2005.

Total revenues for the fourth quarter of 2004 were $20.6 million, an increase of
2% compared to the third  quarter of 2004 and an increase of 66% compared to the
fourth  quarter of 2003.  The increase in fourth  quarter sales in 2004 resulted
from stronger  demand for  semiconductor  process  control  metrology  equipment
primarily in the U.S. and in Pacific Rim countries. The net income in the fourth
quarter of 2004 was $2.4  million or $0.18 per diluted  share  compared to a net
loss of $804,000 or $0.07 per diluted share for the same period last year.

For the year ended January 1, 2005, Nanometrics' revenues increased 70% to $70.7
million,  which was a record for the  company,  compared  to  revenues  of $41.6
million in 2003.  Net income for the year ended January 1, 2005 was $5.0 million
or $0.38 per diluted share, compared to a net loss of $17.5 million or a loss of
$1.45 per diluted  share in 2003.  The net loss in 2003  includes a $6.0 million
charge to record a valuation  allowance  against deferred income tax assets,  as
previously  reported  in the first  quarter  of 2003.  The  Company's  financial
position  continues  to be  strong  with  cash and  equivalents  and  short-term
investments of $33.9 million and working capital of $69.9 million.

About  Nanometrics:  Nanometrics  Incorporated is a leading supplier of advanced
integrated  and  standalone   metrology  equipment  used  in  the  semiconductor
industry.  The  Company's  corporate  office is located at 1550  Buckeye  Drive,
Milpitas,  CA 95035,  with sales and service offices  worldwide.  Nanometrics is
traded on the NASDAQ National Market under the symbol NANO. Nanometrics' website
is  http://www.nanometrics.com.  An  earnings  conference  call  will be held on
February 23, 2005 at 8:00 A.M.  Pacific  Time.  To  participate  in the earnings
conference  call, the dial-in  numbers are  800-561-2731 in the United States or
617-614-3528 for international calls. The passcode is 86564513.




                                              NANOMETRICS INCORPORATED
                                             CONSOLIDATED BALANCE SHEETS
                                     (Amounts in thousands except share amounts)
                                                     (Unaudited)


                                                                          January 1,                 January 3,
                                                                             2005                       2004
                                                                       -------------               ------------
                                                                                             
ASSETS
CURRENT ASSETS:
   Cash and cash equivalents                                           $      15,949               $      7,949
   Short-term investments                                                     17,919                     21,943
   Accounts receivable, net of allowances of $603 and $576                    22,222                     14,522
   Inventories                                                                25,494                     24,264
   Prepaid expenses and other                                                    944                      1,015
                                                                       -------------               ------------
                  Total current assets                                        82,528                     69,693

PROPERTY, PLANT AND EQUIPMENT, Net                                            49,035                     49,738

INTANGIBLE ASSETS                                                                924                      1,322

OTHER ASSETS                                                                   1,282                        987
                                                                       -------------               ------------

         TOTAL                                                        $      133,769               $    121,740
                                                                      ==============               ============

LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
   Accounts payable                                                    $       3,146               $      2,047
   Accrued payroll and related expenses                                        2,206                      1,593
   Deferred revenue                                                            2,742                      2,345
   Other current liabilities                                                   1,840                      1,436
   Income taxes payable                                                        1,515                      1,528
   Current portion of debt obligations                                         1,164                      1,157
                                                                       -------------               ------------

                  Total current liabilities                                   12,613                     10,106

DEFERRED INCOME TAXES AND OTHER
LONG-TERM LIABILITIES                                                            930                        545

DEBT OBLIGATIONS                                                               2,070                      2,648
                                                                       -------------               ------------

                  Total liabilities                                           15,613                     13,299
                                                                       -------------               ------------

SHAREHOLDERS' EQUITY:
   Common stock, no par value; 50,000,000 shares
     authorized; 12,566,636 and 12,166,016 outstanding                       104,191                    101,099
   Retained earnings                                                          12,034                      7,008
   Accumulated other comprehensive income                                      1,931                        334
                                                                       -------------               ------------
                  Total shareholders' equity                                 118,156                    108,441
                                                                       -------------               ------------

         TOTAL                                                         $     133,769               $    121,740
                                                                       =============               ============





                                            NANOMETRICS INCORPORATED
                                        CONSOLIDATED STATEMENTS OF INCOME
                                (Amounts in thousands, except per share amounts)
                                                  (Unaudited)


                                                Three Months Ended                        Year Ended
                                            --------------------------          ----------------------------
                                             January 1,     January 3,           January 1,       January 3,
                                                2005           2004                 2005             2004
                                            ----------      ----------          ----------       -----------
                                                                                     
NET REVENUES:
   Product sales                            $   18,702      $   10,778          $   62,911       $    34,592
   Service                                       1,884           1,609               7,784             7,010
                                            ----------      ----------          ----------       -----------

   Total net revenues                           20,586          12,387              70,695            41,602
                                            ----------      ----------          ----------       -----------

COSTS AND EXPENSES:
   Cost of product sales                         8,593           4,665              27,555            17,691
   Cost of service                               3,078           1,702               8,404             6,620
   Research and development                      3,310           3,200              12,827            13,399
   Selling                                       2,490           3,031              11,442            11,496
   General and administrative                    1,110           1,225               5,137           4,689
                                            ----------      ----------          ----------       -----------
   Total costs and expenses                     18,581          13,823              65,365            53,895
                                            ----------      ----------          ----------       -----------

INCOME (LOSS) FROM OPERATIONS                    2,005         (1,436)               5,330          (12,293)

OTHER INCOME (EXPENSE)
Interest income                                    102             167                 276               397
Interest expense                                  (32)            (25)               (110)              (96)
Other, net                                         250             209                (44)               385
                                            ----------      ----------          ----------       -----------
   Total other income, net                         320             351                 122               686
                                            ----------      ----------          ----------       -----------

INCOME (LOSS)
BEFORE INCOME TAXES                              2,325         (1,085)               5,452          (11,607)

BENEFIT (PROVISION)
FOR INCOME TAXES                                    38           (281)               (426)           (5,860)
                                            ----------      ----------          ----------       -----------

NET INCOME (LOSS)                           $    2,363      $    (804)          $    5,026       $  (17,467)
                                            ==========      ==========          ==========       ===========

NET INCOME (LOSS) PER SHARE:
   Basic                                    $     0.19      $   (0.07)          $     0.41       $    (1.45)
                                            ==========      ==========          ==========       ===========
   Diluted                                  $     0.18      $   (0.07)          $     0.38       $    (1.45)
                                            ==========      ==========          ==========       ===========

SHARES USED IN PER SHARE
COMPUTATION:
   Basic                                        12,495          12,122              12,320            12,043
                                            ==========      ==========          ==========       ===========
   Diluted                                      13,499          12,122              13,351            12,043
                                            ==========      ==========          ==========       ===========