Home / Standards / GB/T 31225-2014 GB/T 31225-2014 Active Test method for the thickness of silicon oxide on Si substrate by ellipsometer 椭圆偏振仪测量硅表面上二氧化硅薄层厚度的方法 Standard Type GBT ICS 17.040.01 CCS J04 Status 现行 Issue Date 2014-09-30 Implementation 2015-04-15 Responsible Dept 中国科学院 Drafting Unit N/A