Investigator, Howard Hughes Medical Institute (HHMI) (2015) Professor, Stanford University, Hong Seh and Vivian W. M. Professor of Engineering, 2017-present. Professor, 2012-2017. Associate Professor, 2008-2012. Assistant Professor, 2001-2008. Department of Electrical Engineering, Neurobiology (courtesy) and Bioen Postdoc, Caltech, Neurobiology, Senior Postdoc, 1998-2001; Neurobiology, Postdoc, 1995-1998 (1998) Ph.D., MIT, Electrical Engineering (1995) S.M., MIT, Electrical Engineering (1992) B.S., University of California, Irvine, Electrical Engineering (1990)