<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-END>                               SEP-30-1997
<CASH>                                         $   594
<SECURITIES>                                     5,438
<RECEIVABLES>                                    4,422
<ALLOWANCES>                                      (445)
<INVENTORY>                                      9,812
<CURRENT-ASSETS>                                20,384<F1>
<PP&E>                                          24,999
<DEPRECIATION>                                 (11,151)
<TOTAL-ASSETS>                                 $38,030<F2>
<CURRENT-LIABILITIES>                            5,902
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        52,610
<OTHER-SE>                                     (28,889)
<TOTAL-LIABILITY-AND-EQUITY>                   $38,030
<SALES>                                        $ 7,954
<TOTAL-REVENUES>                                 8,129<F3>
<CGS>                                            5,847
<TOTAL-COSTS>                                    5,847
<OTHER-EXPENSES>                                 2,656<F4>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 241
<INCOME-PRETAX>                                   (615)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   $  (615)
<EPS-PRIMARY>                                    (0.06)
<EPS-DILUTED>                                    (0.06)
<FN>
<F1>Includes other assets - 563.
<F2>Includes Restricted cash - 3,386; Other long term assets - 412.
<F3>Includes Technology related revenues - 175.
<F4>Includes Research and development - 771; Selling, marketing, and
administrative - 1,981; Interest (income) - (92) ;
Other (income)/expense - (4).
</FN>