Inventories (Tables)

9 Months Ended

Dec. 29, 2012

Inventory Disclosure [Abstract]

Components of inventory

Inventories are stated at the lower of cost (determined using the first-in, first-out method), or market (estimated net realizable value) and are comprised of the following:

(In thousands)	December 29, 2012		March 31, 2012
Raw materials	$	15,174	$	11,707
Work-in-process	189,516		164,438
Finished goods	21,295		28,721
	$	225,985	$	204,866