Normally-OFF GaN MIS-HEMT With F^− Doped Gate Insulator Using Standard Ion Implantation oleh Chia-Hsun Wu, Ping-Cheng Han, Quang Ho Luc, Ching-Yi Hsu, Ting-En Hsieh, Huan-Chung Wang, Yen-Ku Lin, Po-Chun Chang, Yueh-Chin Lin, Edward Yi Chang