Commitments and Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended				12 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 31, 2012	Mar. 29, 2014 Tucson, Arizona Facility [Member] sqft	Mar. 29, 2014 Capacity Investment and Loading Agreement with STATS ChipPAC Ltd [Member]	Mar. 30, 2013 Capacity Investment and Loading Agreement with STATS ChipPAC Ltd [Member]	Dec. 22, 2011 Capacity Investment and Loading Agreement with STATS ChipPAC Ltd [Member]	Mar. 29, 2014 Foundry Commitments [Member]	Mar. 29, 2014 Assembly Purchase Order Commitments [Member]	Mar. 29, 2014 Outside Test Services Commitments [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Square footage of Tucson facilities				28,000
Rent expense	$ 2.8	$ 3.2	$ 4.7
Sublease rental income	0.1	0.1	0.4
Non-cancelable purchase commitments							10.0	36.7	2.1	5.3
Purchase commitment, rebate amount					10.0
Purchase commitment, expected rebate to receive					10.0
Purchase obligation, rebate utilized					$ 2.6	$ 4.3