1. Institute of High Performance Computing, Agency for Science, Technology, and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632
2. Department of Electrical and Computer Engineering, Michigan State University, East Lansing, Michigan 48824-1226, United States
3. Leadmicro Nano Technology Co., Ltd, 7 Xingchuang Road, Wuxi 214000, China
4. Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575
5. Institute of Materials Research and Engineering, Agency for Science, Technology, and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634
6. SUTD-MIT International Design Center, Science, Mathematics and Technology Cluster, Singapore University of Technology and Design (SUTD), 8 Somapah Road, Singapore 487372