Home / Standards / GB/T 42907-2023 GB/T 42907-2023 Active Test method for excess-charge-carrier recombination lifetime in silicon ingots, silicon bricks and silicon wafers—Noncontact eddy-current sensor 硅锭、硅块和硅片中非平衡载流子复合寿命的测试 非接触涡流感应法 Standard Type GBT ICS 77.040 CCS H21 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 国家标准委 Drafting Unit N/A