Geographic and Significant Customer Information (Details 2) (Accounts Receivable [Member])	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Intel Corporation [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	19.00%	14.40%
SK Hynix [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	10.90%	21.80%
Samsung Electronics Co. Ltd. [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	21.90%	27.40%
Taiwan Semiconductor Mfg. Co. [Member]
Customers accounted for 10% or more of total accounts receivable
Customers accounted for 10% or more of total accounts receivable	18.10%	12.10%