AMemImp: Novel Analog Memimpedance Device and Circuits for MAC Unit

Heba Abunahla, Dima Kilani, Baker Mohammad

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work presents a novel planar memimpedance device, named AMemImp, that consists of a Silver/reduced Graphene Oxide/Silver junction. AMemImp exhibits a unique ability for analog memimpedance tuning. For the first time in the literature, it is shown that the resistance and the capacitance of AMemImp device can be tuned simultaneously using a suitable voltage pulse. The oxide gap size (the distance between the metal electrodes) effect on both resistance and capacitance is also studied. It is proved that AMemImp capacitance follows semiconductors-based capacitance behavior during full ON state, while it has the insulator-based parallel plate capacitance characteristics during full OFF state. As a demonstrator, the analog capacitance switching behavior of AMemImp is utilized to build 2 capacitors and 2 transistors (2C2T) computation cell to perform multiply-and-accumulate operation. The non-volatile memcapacitor is exploited to store the data during the programming mode and perform multiplication in the computation mode. The 2C2T is used in a 5x4 crossbar where 20 operations are achieved in a single clock cycle with an error of 5.7%. AMemImp is considered great merit for tunable memory, computing, and RF systems.

Original languageBritish English
Title of host publicationMWSCAS 2022 - 65th IEEE International Midwest Symposium on Circuits and Systems, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665402798
DOIs
StatePublished - 2022
Event65th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2022 - Fukuoka, Japan
Duration: 7 Aug 202210 Aug 2022

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2022-August
ISSN (Print)1548-3746

Conference

Conference65th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2022
Country/TerritoryJapan
CityFukuoka
Period7/08/2210/08/22

Keywords

  • analog
  • graphene oxide
  • memcapacitor
  • memimpedance
  • memristor
  • switching

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