<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1996
<PERIOD-END>                               MAR-31-1997
<EXCHANGE-RATE>                                      1
<CASH>                                          12,885
<SECURITIES>                                         0
<RECEIVABLES>                                    4,218
<ALLOWANCES>                                     (106)
<INVENTORY>                                      6,629
<CURRENT-ASSETS>                                23,626
<PP&E>                                          47,067
<DEPRECIATION>                                (26,936)
<TOTAL-ASSETS>                                  43,757
<CURRENT-LIABILITIES>                            5,174
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            68
<OTHER-SE>                                      38,515
<TOTAL-LIABILITY-AND-EQUITY>                    43,757
<SALES>                                         18,432
<TOTAL-REVENUES>                                18,432
<CGS>                                           11,234
<TOTAL-COSTS>                                   11,234
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (8,403)
<INCOME-TAX>                                       141
<INCOME-CONTINUING>                            (8,544)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (8,544)
<EPS-PRIMARY>                                   (1.25)
<EPS-DILUTED>                                   (1.25)