1. Engineering Product Development; Singapore University of Technology and Design (SUTD); 8 Somapah Road 487372 Singapore
2. Center for Brain-Inspired Computing Research (CBICR); Optical Memory National Engineering Research Center; Beijing Innovation Centre for Future Chip; Department of Precision Instrument; Tsinghua University; Beijing 100084 China
3. College of Information Science and Electronic Engineering; Zhejiang University; Zheda Road 38 Hangzhou 310027 China
4. SEU-FEI Nano-Pico Center; Key Laboratory of MEMS of Ministry of Education; Southeast University; Nanjing 210096 China