1. Ultra-precision Machining Research Center, Zhejiang University of Technology, Hangzhou, Hangzhou 310023, China
2. Institute of Advanced Semiconductors & Zhejiang Provincial Key Laboratory of Power Semiconductor Materials and Devices, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang 311215, China
3. State Key Laboratory of Silicon and Advanced Semiconductor Materials & School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
4. IV Semitec Co., Ltd., Hangzhou 311200, China