| Three Months Ended | |||||||||||
| June 29, 2014 | March 30, 2014 | June 30, 2013 | |||||||||
| Cost of sales | $ | 1,302 | $ | 1,330 | $ | 1,091 | |||||
| Selling, general and administrative expense | 3,260 | 3,233 | 2,455 | ||||||||
| Research and development expense | 1,905 | 1,975 | 1,600 | ||||||||
| Total stock-based compensation expense | $ | 6,467 | $ | 6,538 | $ | 5,146 | |||||
International Rectifier Reports Fourth Quarter and Full Year Fiscal 2014 Results
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For the three months ended June 29, 2014, March 30, 2014, and June 30,
2013, stock-based compensation was as follows (in thousands):
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