Sung-min Sim received a B.S. degree in electronic engineering from Jeonbuk National University, Jeonju, Korea, in 2014, and an integrated PhD degree in electronic and information engineering from Jeonbuk National University, Jeonju, Korea, in 2021. He worked on teh Reconfigurable Frequency Measurement System using varactors and RF MEMS capacitors. He is currently working on printed electronics, sensors, and packaging based on inkjet printing technology at KITECH (Korea Institute of Industrial Technology), Ansan, Korea.