Stock-Based Compensation (Tables)

9 Months Ended

Jun. 23, 2012

Share-Based Compensation Expense

Share-based compensation expense is as follows:

	Three Months Ended				Nine Months Ended
	June 23, 2012		June 25, 2011		June 23, 2012		June 25, 2011
Cost of revenues	$	1,220	$	992	$	3,602	$	3,533
Research and development		1,210		1,081		3,688		3,633
Selling and marketing		1,840		1,342		5,234		4,486
General and administrative		4,484		4,364		13,836		15,593
	$	8,754	$	7,779	$	26,360	$	27,245

Weighted-Average Assumptions Utilized To Value Stock Options

options. The weighted-average assumptions utilized to value these stock options are indicated in the following table:

	Three Months Ended						Nine Months Ended
	June 23, 2012			June 25, 2011			June 23, 2012			June 25, 2011
Risk-free interest rate		0.7	%		1.0	%		0.7	%		1.0	%
Expected volatility		47	%		45	%		47	%		45	%
Expected life (in years)		4.3			4.2			4.3			4.2
Dividend yield		—			—			—			—
Weighted average fair value of options granted	$	7.10		$	7.96		$	6.43		$	6.23