1. Department of Electrical and Computer Engineering National University of Singapore 4 Engineering Drive 3 Singapore 117576 Singapore
2. Center for Intelligent Sensors and MEMS National University of Singapore Block E6 #05‐11, 5 Engineering Drive 1 Singapore 117608 Singapore
3. Hybrid‐Integrated Flexible (Stretchable) Electronic Systems Program National University of Singapore Block E6 #05‐3, 5 Engineering Drive 1 Singapore 117608 Singapore
4. NUS Suzhou Research Institute (NUSRI) Suzhou Industrial Park Suzhou 215123 P. R. China
5. NUS Graduate School for Integrative Science and Engineering National University of Singapore Singapore 117456 Singapore