1. National Yang Ming Chiao Tung University, Hsinchu, Taiwan
2. ECE Department, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
3. Institute of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
4. Chip-GaN Power Semiconductor Corporation, Hsinchu, Taiwan
5. Realtek Semiconductor Corporation, Hsinchu, Taiwan