His current research is focused on: testing and design-for-testability of integrated circuits (especially 3D SOC); microfluidic biochips; hardware security; neuromorphic computing. His research projects in the past have also included digital print and enterprise system optimization, chip cooling using digital microfluidics, wireless sensor networks, and real-time embedded systems. Research support is provided by the National Science Foundation, DARPA, Semiconductor Research Corporation, Intel, and IBM. Other sponsors in the past have included the Army Research Office, National Institutes of Health, Office of Naval Research, Cisco, and HP.