Shenglin Ma is Associate Professor in the Department of Mechanical and Electrical Engineering at Xiamen University, China. He received his PhD from Peking University and has also been a guest researcher with the National Key Laboratory of Science and Technology in Micro/Nano Fabrication at Peking University. He has over 50 publications and 20 patents to his name, and his research focuses on TSV based 3D integration technology, MEMS and its applications.YuFeng Jin is a Professor at Peking University, China. He also directed the National Key Laboratory of Science and Technology on Micro/Nano Fabrication for a number of years. He received his PhD from Southeast University, China. He has written three books on advanced packing technologies, and his research focus includes MEMS sensors and TSV related 3D integration of microsystems.