1984, Master's in Engineering, Tsinghua University, Beijing; 1991, PhD, Engineering Faculte Polytechnique de Mons, Belgium. 1985-87, Research Engineer, Research and Development Department, Siemens ATEA, Belgium; 1989-92, Research Fellow, Aramis, Belgium; 1995-98, Deputy General Engineer, China Academy of Telecommunications Technology, Ministry of Information Industry; 1988, Vice-President, President, Chief Executive Officer, Dantang Telecom Technology Co. 2005-06, CTO, Datang Telecom Industry Group; 2008-10, Professor, Tsingua University; 2010-now, Dean of the Department of Micro- and Nano-Electronics, Tsinghua Universty; 2008-now, Chief Scientist of State Key Project for Integrated Circuits; 2015-now, member of the National IC Industry Industry Development Advisory Committee; Fellow of IEEE, Fellow of CIE.