Impairment of Long-Lived Assets	12 Months Ended
Jun. 25, 2011
Impairment of Long Lived Assets Disclosure [Abstract]
Impairment of Long-Lived Assets [Text Block]	IMPAIRMENT OF LONG-LIVED ASSETS End-of-Line Sorting and Testing Facilities During the first quarter of fiscal year 2010, the Company identified certain assets as excess or obsolete, primarily due to changes in certain manufacturing technology. In connection with these circumstances, the Company recorded a charge for the write-down of equipment to its estimated fair value. The total charge of $5.0 million was included in impairment of long-lived assets in the Company's Consolidated Statements of Income. The Company has ceased depreciation and classified these assets as held for sale based on its intentions to sell the assets and has included $0.6 million in other assets in the Consolidated Balance Sheet as of June 26, 2010. During the second quarter of fiscal year 2009, the Company identified certain assets as excess as a result of reductions in demand for product tested and sorted on certain equipment. In connection with these circumstances, the Company incurred an asset impairment charge of $43.8 million which is included in impairment of long-lived assets in the Company's Consolidated Statements of Income. The Company has classified these assets as held for sale based on their intentions to sell the assets and has included $3.6 million in other assets in the Consolidated Balance Sheet as of June 27, 2009. Wafer Fabrication Facility, Oregon During the first quarter of fiscal year 2010, as a result of reduced future wafer output requirements associated with equipment utilizing certain process technologies, the Company recorded a write-down of equipment to be sold to the equipment's estimated fair value. This charge of $3.3 million was included in impairment of long-lived assets in the Company's Consolidated Statements of Income. The Company has ceased depreciation and classified these assets as held for sale based on its intentions to sell the assets and has included $0.5 million in other assets in the Consolidated Balance Sheet as of June 26, 2010. Wafer Fabrication Facility, San Jose During the first quarter of fiscal year 2009, the Company recorded a $7.3 million asset impairment charge as a result of transferring certain wafer manufacturing production from its San Jose, California, wafer manufacturing facility to an outsourced Japanese manufacturing facility, Epson's Sakata, Japan, facility, and reductions in demand and reduced future capacity requirements. The Company reached its conclusions regarding the asset impairment after conducting evaluations of the recoverability of the related manufacturing assets in accordance with ASC No. 360, Accounting for Property, Plant, and Equipment. The fair value of the equipment was determined after consideration of equipment specifications, quoted market prices of similar equipment and management's perception of demand for the equipment. The Company applied present value techniques to estimate fair value for certain of the equipment which they believe has limited marketability. Dallas Wafer Fab Closure In connection with the closure of the Dallas facility, the Company evaluated the recoverability of the facilities' manufacturing assets and concluded that there was no impairment. The Company also reevaluated the useful lives and salvage values of the fixed assets used in this manufacturing facility based on the new period of intended use. As a result of this review, the Company changed its depreciable lives and salvage values and recognized additional depreciation expense of $54.7 million for fiscal year 2009 related to this change in accounting estimate.

IMPAIRMENT OF LONG-LIVED ASSETS

End-of-Line Sorting and Testing Facilities

During the first quarter of fiscal year 2010, the Company identified certain assets as excess or obsolete, primarily due to changes in certain manufacturing technology. In connection with these circumstances, the Company recorded a charge for the write-down of equipment to its estimated fair value. The total charge of $5.0 million was included in impairment of long-lived assets in the Company's Consolidated Statements of Income. The Company has ceased depreciation and classified these assets as held for sale based on its intentions to sell the assets and has included $0.6 million in other assets in the Consolidated Balance Sheet as of June 26, 2010.

During the second quarter of fiscal year 2009, the Company identified certain assets as excess as a result of reductions in demand for product tested and sorted on certain equipment. In connection with these circumstances, the Company incurred an asset impairment charge of $43.8 million which is included in impairment of long-lived assets in the Company's Consolidated Statements of Income. The Company has classified these assets as held for sale based on their intentions to sell the assets and has included $3.6 million in other assets in the Consolidated Balance Sheet as of June 27, 2009.

Wafer Fabrication Facility, Oregon

During the first quarter of fiscal year 2010, as a result of reduced future wafer output requirements associated with equipment utilizing certain process technologies, the Company recorded a write-down of equipment to be sold to the equipment's estimated fair value. This charge of $3.3 million was included in impairment of long-lived assets in the Company's Consolidated Statements of Income. The Company has ceased depreciation and classified these assets as held for sale based on its intentions to sell the assets and has included $0.5 million in other assets in the Consolidated Balance Sheet as of June 26, 2010.

Wafer Fabrication Facility, San Jose

During the first quarter of fiscal year 2009, the Company recorded a $7.3 million asset impairment charge as a result of transferring certain wafer manufacturing production from its San Jose, California, wafer manufacturing facility to an outsourced Japanese manufacturing facility, Epson's Sakata, Japan, facility, and reductions in demand and reduced future capacity requirements.

The Company reached its conclusions regarding the asset impairment after conducting evaluations of the recoverability of the related manufacturing assets in accordance with ASC No. 360, Accounting for Property, Plant, and Equipment. The fair value of the equipment was determined after consideration of equipment specifications, quoted market prices of similar equipment and management's perception of demand for the equipment. The Company applied present value techniques to estimate fair value for certain of the equipment which they believe has limited marketability.

Dallas Wafer Fab Closure

In connection with the closure of the Dallas facility, the Company evaluated the recoverability of the facilities' manufacturing assets and concluded that there was no impairment. The Company also reevaluated the useful lives and salvage values of the fixed assets used in this manufacturing facility based on the new period of intended use. As a result of this review, the Company changed its depreciable lives and salvage values and recognized additional depreciation expense of $54.7 million for fiscal year 2009 related to this change in accounting estimate.