Computing with spin-transfer-torque devices: Prospects and perspectives

Kaushik Roy, Mrigank Sharad, Deliang Fan, Karthik Yogendra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

In this paper we discuss the potential of emerging spin-torque devices for computing applications. Recent proposals for spin-based computing schemes may be differentiated as all-spin? vs. hybrid, programmable vs. fixed, and, Boolean vs. non-Boolean. All-spin logic-styles may offer high area-density due to small form-factor of nano-magnetic devices. However, circuit and system-level design techniques need to be explored that leaverage the specific spin-device characterisitcs to achieve energy-efficiency, performance and reliability comparable to those of CMOS. The non-volatility of nano-magnets can be exploited in the design of energy and area-efficient programmable logic. In such logic-styles, spin-devices may play the dual-role of computing as well as memory-elements that provide field-programmability. Spin-based threshold logic design is presented as an example. Emerging spintronic phenomena may lead to ultra-low-voltage, current-mode, spin-torque switches that can offer attractive computing capabilities, beyond digital switches. Such devices may be suitable for non-Boolean data-processing applications which involve analog processing leading to highly energy-efficient information processing hardware for applicatons like pattern-matching, neuromorphic-computing, image-processing and data-conversion. Towards the end, we discuss the possibility of applying emerging spin-torque switches in the design of energy-efficient global interconnects, for future chip multiprocessors.

Original languageEnglish (US)
Title of host publicationProceedings of IEEE Computer Society Annual Symposium on VLSI, ISVLSI
PublisherIEEE Computer Society
Pages398-402
Number of pages5
ISBN (Electronic)9781479937639
DOIs
StatePublished - Sep 18 2014
Externally publishedYes
Event2014 IEEE Computer Society Annual Symposium on VLSI, ISVLSI 2014 - Tampa, United States
Duration: Jul 9 2014Jul 11 2014

Other

Other2014 IEEE Computer Society Annual Symposium on VLSI, ISVLSI 2014
CountryUnited States
CityTampa
Period7/9/147/11/14

Keywords

  • analog
  • interconnect
  • logic
  • low power
  • neural networks
  • non-Boolean
  • programmable logic array
  • spin
  • threshold logic

ASJC Scopus subject areas

  • Hardware and Architecture
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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