Home / Standards / GB/T 14015-1992 GB/T 14015-1992 Active Silicon on sapphire epitaxial wafers 硅-蓝宝石外延片 Standard Type GBT ICS N/A CCS L90 Status Active Issue Date 1992-12-28 Implementation 1993-08-01 Centralized Committee 国家标准委 Issuing Authority 国家标准委