Home / Standards / GB/T 44558-2024 GB/T 44558-2024 Active Test method for dislocation imaging in III-nitride semiconductor materials—Transmission electron microscopy III族氮化物半导体材料中位错成像的测试 透射电子显微镜法 Standard Type GBT ICS 77.040 CCS H21 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 国家标准委 Drafting Unit N/A