Kukjoo Kim received the B.S. and Ph.D. degrees in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2008 and 2014, respectively. His thesis focuses on solution-processed graphene and its electronic applications. He continued as a Post-Doctoral Scholar at the Laboratory of Prof. Kenneth Shepard, Columbia University, New York, NY, USA, in 2016. He is currently a Senior Researcher with the Electronics and Telecommunications Research Institute (ETRI), Daejeon. His research interests include flexible/stretchable electronics and neural interfaces.