Home / Standards / GB/T 1555-2023 GB/T 1555-2023 Active Test methods for determining the orientation of a semiconductive single crystal 半导体单晶晶向测定方法 Standard Type GBT ICS 77.040 CCS H21 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 国家标准委 Drafting Unit N/A