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arXiv · 1710.08034

A Multi-Bit Neuromorphic Weight Cell using Ferroelectric FETs, suitable for SoC Integration

Borna Obradovic·Titash Rakshit·Ryan Hatcher·Jorge Kittl·Rwik Sengupta·Joon Goo Hong·Mark S. Rodder
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Abstract

A multi-bit digital weight cell for high-performance, inference-only non-GPU-like neuromorphic accelerators is presented. The cell is designed with simplicity of peripheral circuitry in mind. Non-volatile storage of weights which eliminates the need for DRAM access is based on FeFETs and is purely digital. The Multiply-and-Accumulate operation is performed using passive resistors, gated by FeFETs. The resulting weight cell offers a high degree of linearity and a large ON/OFF ratio. The key performance tradeoffs are investigated, and the device requirements are elucidated.

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Borna Obradovic, Titash Rakshit, Ryan Hatcher, Jorge Kittl, Rwik Sengupta, Joon Goo Hong, Mark S. Rodder. 2017-10-22. A Multi-Bit Neuromorphic Weight Cell using Ferroelectric FETs, suitable for SoC Integration. https://arxiv.org/abs/1710.08034

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