1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China
2. State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing, China
3. College of Microelectronics, Chengdu University of Information Technology, Chengdu, China
4. Chongqing Pingchuang Institute of Semiconductors Company, Ltd., Chongqing, China