Condensed Consolidated Statements of Operations
(in thousands, except per share amounts) (unaudited)

                          Three Months Ended          Years Ended
                             December 31              December 31
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                          2001         2000       2001         2000
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Net sales             $  28,121    $  55,883   $ 126,550    $ 289,564
Cost and expenses:
 Cost of sales           18,288       36,359      93,594      176,961
 Research and development 7,603        8,371      29,674       32,562
 Selling, general
  and administrative      5,280        6,408      24,972       29,734
 Gain on sale of
  facilities               --           --        (7,746)        --
 Acquired in-process
  research and
  development              --           --         2,050         --
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                         31,171       51,138     142,544      239,257
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Income (loss) from
 operations              (3,050)       4,745     (15,994)      50,307
Interest income             898        1,555       4,427        5,731
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Income (loss) before
 income taxes            (2,152)       6,300     (11,567)      56,038
Provision (credit)
 for income taxes        (1,300)       1,680      (5,100)      19,000
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Income (loss) before
 cumulative effect
 of change in
 accounting principle      (852)       4,620      (6,467)      37,038
Cumulative effect
 of change in accounting
 principle, net of
 $1,700 tax benefit        --           --          --         (3,299)
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Net income (loss)     $    (852)   $   4,620   $  (6,467)   $  33,739
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Earnings (loss) per
 share (diluted):
 Income (loss) before
  cumulative effect
  of change in accounting
  principle           $    (.04)   $     .22   $    (.32)   $    1.76
 Cumulative effect
  of change in accounting
  principle                --           --          --           (.16)
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 Net income (loss)    $    (.04)   $     .22   $    (.32)   $    1.60
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 Weighted average shares
  used in diluted per
  share calculation      20,509       20,727      20,434       21,048
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Condensed Consolidated Balance Sheets
(in thousands) (unaudited)                         Dec. 31,   Dec. 31,
                                                     2001       2000
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Assets:
Current assets:
 Cash and investments                              $ 89,967   $ 92,587
 Accounts receivable                                 25,904     37,164
 Note receivable                                      9,375       --
 Inventories                                         30,404     46,039
 Deferred taxes and other                            20,773     16,926
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                                                    176,423    192,716
Property, plant & equipment, net                     35,849     38,117
Other assets, primarily goodwill                      9,287        662
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    Total assets                                   $221,559   $231,495
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Liabilities & Stockholders' Equity:
Current liabilities:
 Deferred profit                                   $  3,108   $  5,960
 Other current liabilities                           22,511     26,173
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                                                     25,619     32,133
Deferred taxes and other noncurrent liabilities       5,409      1,522
Stockholders' equity                                190,531    197,840
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    Total liabilities & equity                     $221,559   $231,495
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