1. Semiconductor Device Research Laboratory (SDRL), Department of Electrical Engineering, Faculty of Engineering, Chulalongkorn UniversityBangkok 10330Thailand
2. Advanced Optical Technology (AOT) Laboratory, Department of Electrical and Computer Engineering, Faculty of Engineering, Naresuan UniversityPhitsanulok 65000Thailand
3. International School of Engineering (ISE), Faculty of Engineering, Chulalongkorn UniversityBangkok 10330Thailand
4. National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA)Pathumthani 12120Thailand
5. Thai Microelectronics Center (TMEC), National Science and Technology Development Agency (NSTDA)Chachoengsao 24000Thailand
6. National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA)Pathumthani 12120Thailand