Coincidence Detection with an Analog Spiking Neuron Exploiting Ferroelectric Polarization

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Contributors

  • Paolo Gibertini - , NaMLab - Nanoelectronic materials laboratory gGmbH (Author)
  • Luca Fehlings - , NaMLab - Nanoelectronic materials laboratory gGmbH (Author)
  • Thomas Mikolajick - , Chair of Nanoelectronics, NaMLab - Nanoelectronic materials laboratory gGmbH, TUD Dresden University of Technology (Author)
  • Elisabetta Chicca - , University of Groningen (Author)
  • David Kappel - , Ruhr University Bochum (Author)
  • Erika Covi - , NaMLab - Nanoelectronic materials laboratory gGmbH (Author)

Abstract

The ability to detect correlated events in the environment is an important feat of biological neural networks. Neuromorphic computing strives to mimic this ability for efficient sensory processing. For this purpose, we propose a HfO2-based ferroelectric capacitor (FeCap)-complementary metal oxide semiconductor (CMOS) leaky integrate-and-fire (LIF) neuron able to detect highly correlated events exploiting two different temporal dynamics. The possibility to exploit two time constants increases the versatility of the neuron and its dynamic adaptation while offering a compact and elegant solution for detection of both transient and sustained coincidences. Moreover, the time constants are in biologically relevant time scales, which makes the neuron suitable to solve real-time tasks such as keyword spotting or sensory processing. The proposed FeCap-based LIF (FeLIF) neuron enriches the dynamic of a standard LIF neuron fostering the development of advanced event-based analog neuromorphic hardware.

Details

Original languageEnglish
Title of host publicationISCAS 2024 - IEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (electronic)9798350330991
Publication statusPublished - 2024
Peer-reviewedYes

Publication series

SeriesProceedings - IEEE International Symposium on Circuits and Systems
ISSN0271-4310

Conference

TitleIEEE International Symposium on Circuits and Systems 2024
SubtitleCircuits and Systems for Sustainable Development
Abbreviated titleISCAS 2024
Duration19 - 22 May 2024
Website
Degree of recognitionInternational event
LocationResorts World Convention Centre
CitySingapore
CountrySingapore

External IDs

ORCID /0000-0003-3814-0378/work/164619840

Keywords

ASJC Scopus subject areas

Keywords

  • artificial neuron, correlation detection, ferroelectric capacitor, Neuromorphic computing, SNN