Rongshun Chen received the Ph.D. degree in mechanical engineering from the University of Michigan, Ann Arbor, Michigan, USA, in 1992. Dr. Chen is presently a professor in the Department of Power Mechanical Engineering and in the Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu, Taiwan. Dr. Chen is a member of the IEEE Control Systems Society, Circuit and Systems, and Electron Devices Society.