1. Department of Electrical Engineering, ESAT Research Division Micro-and Nano-Systems (ESAT-MNS), Leuven, Belgium
2. MOE Key Laboratory of Micro and Nano Systems for Aerospace, Northwestern Polytechnical University, Xi’an, China
3. Broadcom, San Jose, CA, USA
4. Institute of Microelectronics, University of Macau, Macau, China