Home / Standards / GB/T 29507-2013 GB/T 29507-2013 Active Test method for measuring flatness, thickness and total thickness variation on silicon wafers by automated non-contact scanning 硅片平整度、厚度及总厚度变化测试 自动非接触扫描法 Standard Type GBT ICS 29.045 CCS H80 Status 现行 Issue Date 2013-05-09 Implementation 2014-02-01 Responsible Dept 国家标准委 Drafting Unit N/A