1. Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
2. Schlumberger-Doll Research, Cambridge, MA, USA
3. Department of ECE, State Key Laboratory of Analog and Mixed-Signal VLSI, Institute of Microelectronics, Faculty of Science and Technology, University of Macau, Macau, China
4. Institute of Smart Sensors, University of Stuttgart, Stuttgart, Germany