Home / Standards / GB/T 14844-1993 GB/T 14844-1993 Abolished Designations of semiconductor materials 半导体材料牌号表示方法 Standard Type GBT ICS N/A CCS H80 Status Abolished Issue Date 1993-12-30 Implementation 1994-09-01 Centralized Committee 国家标准委 Issuing Authority 国家技术监督局