<ARTICLE> 5

                                                  
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000             DEC-31-1999
<PERIOD-END>                               JUN-30-2000             JUN-30-1999
<CASH>                                      18,002,000              23,539,000
<SECURITIES>                                         0                       0
<RECEIVABLES>                                3,919,000               1,719,000
<ALLOWANCES>                                    26,000                       0
<INVENTORY>                                  3,479,000               1,235,000
<CURRENT-ASSETS>                            28,894,000              27,486,000
<PP&E>                                      17,790,000              15,631,000
<DEPRECIATION>                               7,941,000               5,225,000
<TOTAL-ASSETS>                              85,007,000              83,296,000
<CURRENT-LIABILITIES>                       11,687,000               6,741,000
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                        200                     100
<COMMON>                                        19,000                  18,250
<OTHER-SE>                                  73,300,800              43,477,650
<TOTAL-LIABILITY-AND-EQUITY>                85,007,000              83,296,000
<SALES>                                      9,414,000               7,077,000
<TOTAL-REVENUES>                             9,414,000               7,077,000
<CGS>                                        5,212,000               4,738,000
<TOTAL-COSTS>                               20,613,000              16,621,000
<OTHER-EXPENSES>                                     0                 504,000
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                   0               1,030,000
<INCOME-PRETAX>                           (15,985,000)            (15,110,000)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                       (15,985,000)            (15,110,000)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                              (15,985,000)            (15,110,000)
<EPS-BASIC>                                     (1.04)                  (0.98)
<EPS-DILUTED>                                   (1.04)                  (0.98)