|Prof. Kaushik Roy
Edward G. Tiedemann Jr. Distinguished Professor of Electrical and Computer Engineering
Purdue University, USA
|Title: Re-engineering Computing with Spintronics
Scaling of technology has adverse effects on on-chip memories and leads to decreased robustness, increased leakage, and adverse effects on access time. Hence, research has started in earnest to develop non-volatile memories for both on-chip and off-chip memories that can potentially have better foot-print, close to zero leakage, and improved reliability. In this talk I will focus on spin-transfer torque magnetic memories (STT-MRAMs) as a non-volatile on-chip cache and consider the design and verification implications. Interesting, the STT MRAMs also show stochastic switching behavior. In the second part of the talk, I will consider how such stochastic switching behavior can be effectively used to do combinatorial optimization, in Bayesian inferencing, and to design stochastic neural networks with stochastic binary activation of neurons and stochastic spike timing dependent plasticity based learning.
Kaushik Roy received B.Tech. degree in electronics and electrical communications engineering from the Indian Institute of Technology, Kharagpur, India, and Ph.D. degree from the electrical and computer engineering department of the University of Illinois at Urbana-Champaign in 1990. He was with the Semiconductor Process and Design Center of Texas Instruments, Dallas, where he worked on FPGA architecture development and low-power circuit design. He joined the electrical and computer engineering faculty at Purdue University, West Lafayette, IN, in 1993, where he is currently Edward G. Tiedemann Jr. Distinguished Professor. He also the director of the center for brain-inspired computing (C-BRIC) funded by SRC/DARPA. His research interests include neuromorphic and emerging computing models, neuro-mimetic devices, spintronics, device-circuit-algorithm co-design for nano-scale Silicon and non-Silicon technologies, and low-power electronics. Dr. Roy has published more than 700 papers in refereed journals and conferences, holds 18 patents, supervised 85 PhD dissertations, and is co-author of two books on Low Power CMOS VLSI Design (John Wiley & McGraw Hill).
Dr. Roy received the National Science Foundation Career Development Award in 1995, IBM faculty partnership award, ATT/Lucent Foundation award, 2005 SRC Technical Excellence Award, SRC Inventors Award, Purdue College of Engineering Research Excellence Award, Humboldt Research Award in 2010, 2010 IEEE Circuits and Systems Society Technical Achievement Award (Charles Desoer Award), Distinguished Alumnus Award from Indian Institute of Technology (IIT), Kharagpur, Fulbright-Nehru Distinguished Chair, DoD Vannevar Bush Faculty Fellow (2014-2019), Semiconductor Research Corporation Aristotle award in 2015, and best paper awards at 1997 International Test Conference, IEEE 2000 International Symposium on Quality of IC Design, 2003 IEEE Latin American Test Workshop, 2003 IEEE Nano, 2004 IEEE International Conference on Computer Design, 2006 IEEE/ACM International Symposium on Low Power Electronics & Design, and 2005 IEEE Circuits and system society Outstanding Young Author Award (Chris Kim), 2006 IEEE Transactions on VLSI Systems best paper award, 2012 ACM/IEEE International Symposium on Low Power Electronics and Design best paper award, 2013 IEEE Transactions on VLSI Best paper award. Dr. Roy was a Purdue University Faculty Scholar (1998-2003). He was a Research Visionary Board Member of Motorola Labs (2002) and held the M. Gandhi Distinguished Visiting faculty at Indian Institute of Technology (Bombay) and Global Foundries visiting Chair at National University of Singapore. He has been in the editorial board of IEEE Design and Test, IEEE Transactions on Circuits and Systems, IEEE Transactions on VLSI Systems, and IEEE Transactions on Electron Devices. He was Guest Editor for Special Issue on Low-Power VLSI in the IEEE Design and Test (1994) and IEEE Transactions on VLSI Systems (June 2000), IEE Proceedings — Computers and Digital Techniques (July 2002), and IEEE Journal on Emerging and Selected Topics in Circuits and Systems (2011). Dr. Roy is a fellow of IEEE.