<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-1999
<PERIOD-END>                               JUN-30-1998
<CASH>                                        $    887
<SECURITIES>                                     4,661
<RECEIVABLES>                                    5,289
<ALLOWANCES>                                     (385)
<INVENTORY>                                      8,326
<CURRENT-ASSETS>                                19,232<F1>
<PP&E>                                          26,232
<DEPRECIATION>                                 (13,307)
<TOTAL-ASSETS>                                  35,759<F2>
<CURRENT-LIABILITIES>                            6,886
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        53,041
<OTHER-SE>                                     (32,234)
<TOTAL-LIABILITY-AND-EQUITY>                    35,759<F3>
<SALES>                                          8,231
<TOTAL-REVENUES>                                 8,231
<CGS>                                            6,550
<TOTAL-COSTS>                                    6,550
<OTHER-EXPENSES>                                 2,299<F4>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 228
<INCOME-PRETAX>                                   (846)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                      (846)
<EPS-PRIMARY>                                    (0.08)
<EPS-DILUTED>                                    (0.08)
<FN>
<F1>Includes Prepaid expenses and other assets - 454.
<F2>Includes Restricted cash - 3,199; and Other long-term assets - 401.
<F3>Includes Long-term debt - 8,066
<F4>Includes Research and development - 902; Selling,marketing, 
    and administrative - 1,480; Interest (income) - (87); and
    other (income)/expense - 4.
</FN>