Dr. Preetpal Singh received his BS from the Guru Nanak Engineering College, Hyderabad, India, in 2007, and MS from Amity University, Noida, India, in 2013. He completed his PhD in 2018 with the Department of Electronic Engineering and Center for Reliability Sciences and Technologies (CReST), Chang Gung University in Taoyuan, Taiwan. His research interests include graphene-based high-power LEDs, high-power LED degradation study, and LED reliability. He has published his research in reputed journals like the IEEE-TDMR, Microelectronics Reliability, and Scientific Reports. He holds a US patent for his work on High Power LEDs substrate—GaN thermal and lattice mismatch improvement. He is also the Reviewer for the IEEE-TDMR and microelectronics journals. Presently he is working with Epistar, Taiwan, as Senior Research Engineer and is responsible for development of different types of LEDs.