KAIST Department of Materials Science and Engineering Professor Ki-beom Kang, Dr. Min-seung Kyun, doctoral candidate Yeon-gyu Kim, Professor Seung-beom Hong (from left), and doctoral candidate Ji-hoon Hong of Sungkyunkwan University and Professor Seong-beom Cho (from left in the upper circle). Provided by KAIST If the path through which electricity flows within a semiconductor is blocked, performance deteriorates and power waste increases. A domestic research team has developed a technology that can solve this ‘electrical bottleneck’. KAIST has a new materials engineering department.