2005-Present, Associate professor in Dept. of BME, Medical school, Tsinghua University, China
2002-2005, Research Associate professor, Northwestern University, U.S.
1994-2002, Associate Professor/Assistant professor in Dept. of Electrical Engineering, Tsinghua University, China
1997-2001, Ph. D. student, Tsinghua University, China
1991-1994, M.S. student, Beijing University of Aeronautics & Astronautics, China
1986-1991, Double B.S. student, Tsinghua Uninversity, China