Home / Standards / GB/T 20176-2025 GB/T 20176-2025 Active Surface chemical analysis—Secondary-ion mass spectrometry—Determination of boron atomic concentration in silicon using uniformly doped materials 表面化学分析 二次离子质谱 用均匀掺杂物质测定硅中硼的原子浓度 Standard Type GBT ICS 71.040.40 CCS G 04 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 中国科学院 Drafting Unit N/A