1. Department of Advanced Materials and Science Engineering, Sungkyunkwan University, Suwon, South Korea
2. Department of Electronics and Information Convergence Engineering and the Wearable Convergence Electronics, Kyung Hee University, Yongin, South Korea
3. SoC Platform Research Center, Korea Electronics Technology Institute, Seongnam, South Korea
4. Department of Architectural Engineering, Hanyang University, Ansan, South Korea