Effect of 60Coγ ray radiation on electrical properties of SiGe HBTs at low temperatures. - Yahui Feng; Hongxia Guo; Wuying Ma; Jiawen Hu; Xiaoping Ouyang 003; Jinxin Zhang; Fengqi Zhang; Hong Zhang; Ruxue Bai; Xiaohua Ma 001; Yue Hao 001 (Microelectron. J., 2024)