1. Department of Photonics, Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
2. Research Center for Applied Sciences, Academia Sinica, Taipei 114699, Taiwan
3. Institute of Advanced Semiconductor Packaging and Testing, College of Semiconductor and Advanced Technology Research, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
4. Semiconductor Research Center, Hon Hai Research Institute, Taipei 114699, Taiwan