1. School of Energy and Power Engineering, Shandong University, Jinan, China
2. China Electronic Product Reliability and Environmental Testing Research Institute, Guangzhou, China
3. Key Laboratory of Wide Bandgap Semiconductor Materials and Devices, School of Microelectronics, Xidian University, Xi’an, China
4. State Key Laboratory of Reliability Physics of Electronic Components and Its Application Technology, Fifth Research Institute of Electronics, Ministry of Industry and Information Technology, Guangzhou, China