Summary of Significant Accounting Policies Concentration of Credit Risk (Details)	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Avnet Electronics [Member] | Revenue Benchmark [Member]
Concentration Risk [Line Items]
Concentration Risk	22.00%	22.00%	25.00%
Avnet Electronics [Member] | Accounts receivable [Member]
Concentration Risk [Line Items]
Concentration Risk	28.00%	21.00%
Samsung [Member] | Revenue Benchmark [Member]
Concentration Risk [Line Items]
Concentration Risk	10.00%	10.00%
Samsung [Member] | Accounts receivable [Member]
Concentration Risk [Line Items]
Concentration Risk	4.00%	6.00%
No other customer [Member] | Revenue Benchmark [Member]
Concentration Risk [Line Items]
Concentration Risk	10.00%	10.00%
No other customer [Member] | Accounts receivable [Member]
Concentration Risk [Line Items]
Concentration Risk	10.00%
Distributors [Member] | Revenue Benchmark [Member]
Concentration Risk [Line Items]
Concentration Risk	52.00%