Biomimetic 4F2 synapse with intrinsic timescale for pulse based STDP by I-NPN selection device

R. Meshram, B. Rajendran, U. Ganguly

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

4 Scopus citations


Introduction: Area and power-efficient neuromorphic circuits have the potential to efficiently solve many 'big data' problems using brain-like non-Von Neumann approaches. Developing a synaptic device capable of capturing correlations between neuronal signals that are far apart in time in what is commonly known as Spike Timing Dependent Plasticity (STDP) is a central challenge in this task. Most efforts so far has relied on applying long (∼100ms) neuronal waveforms to resistive memory devices which seriously limits the learning rate [1] or complex signaling schemes that require synchronization of multiple finite state controllers across neuron circuits [2]. In biology, such time correlations are implemented in the synapse. In this paper, we propose that the intrinsic transient behavior of a novel 4F 2 I-NPN device that was recently demonstrated [3,4] can be used to implement timing dependent resistance changes using very short and simple pulse signals as issued by biological neurons.

Original languageEnglish (US)
Title of host publication72nd Device Research Conference, DRC 2014 - Conference Digest
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
ISBN (Print)9781479954056
StatePublished - 2014
Externally publishedYes
Event72nd Device Research Conference, DRC 2014 - Santa Barbara, CA, United States
Duration: Jun 22 2014Jun 25 2014

Publication series

NameDevice Research Conference - Conference Digest, DRC
ISSN (Print)1548-3770


Other72nd Device Research Conference, DRC 2014
Country/TerritoryUnited States
CitySanta Barbara, CA

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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