Masahiro Aoyagi (M’94–SM’10) received the B.E. and D.E. degrees in electronics engineering from the Nagoya Institute of Technology, Nagoya, Japan, in 1982 and 1991, respectively.,He joined the Electrotechnical Laboratory, Tsukuba, Japan, in 1982, where he has been engaged in the research and development of Nb, NbN superconducting devices, and Josephson integrated circuits. He was involved in the special section on Josephson computer technology from 1982 to 1994. He was a Guest Researcher with the National Physical Laboratory, Teddington, U.K., from 1994 to 1995. He was a Group Leader of the High Density Interconnection Group with the Nanoelectronics Research Institute (NeRI), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, from 2000 to 2010. He was also a Group Leader of the National R&D Projects of High Density Electronic System Integration from 1999 to 2004, and Functionally Innovative 3-D Integrated Circuit (Dream Chip) Technology from 2008 to 2012. He was the 3-D Integration System Group Leader of NeRI at AIST from 2011 to 2014. He is currently the Director of the Collaboration Promotion Unit with Tsukuba Innovation Arena Central Office, AIST. His current research interests include high-performance high-density 3-D system integration technology.