Home / Standards / GB/T 19444 GB/T 19444 Active Test method for oxygen precipition characteristics of silicon wafers—Interstitial oxygen reduction 硅片氧沉淀特性的测试 间隙氧含量减少法 Standard Type GBT ICS 77.040 CCS H 21 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委