A ferroelectric field effect transistor based synaptic weight cell

Matthew Jerry, Sourav Dutta, Arman Kazemi, Kai Ni, Jianchi Zhang, Pai Yu Chen, Pankaj Sharma, Shimeng Yu, X. Sharon Hu, Michael Niemier, Suman Datta

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Dense analog synaptic crossbar arrays are a promising candidate for neuromorphic hardware accelerators due to the ability to mitigate data movement by performing in-situ vector-matrix products and weight updates within the storage array itself. However, many analog weight storage cells suffer from long latencies or low dynamic ranges, limiting the achievable performance. In this work, we demonstrate that the voltage-controlled partial polarization switching dynamics in ferroelectric-field-effect transistors (FeFET) can be harnessed to enable a 32 state non-volatile analog synaptic weight cell with large dynamic range (67×) and low latency weight updates (50 ns) for an amplitude modulated pulse scheme.

Original languageEnglish (US)
Article number434001
JournalJournal of Physics D: Applied Physics
Volume51
Issue number43
DOIs
StatePublished - Aug 23 2018
Externally publishedYes

Keywords

  • analog synapse
  • feld-effect-transistor
  • ferroelectric
  • Neuromorphic computing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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