Home / Standards / GB/T 14140-2025 GB/T 14140-2025 Active Test method for measuring diameter of semiconductor wafer 半导体晶片直径测试方法 Standard Type GBT ICS 77.040 CCS H17 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 国家标准委 Drafting Unit N/A