Fully analog ReRAM neuromorphic circuit optimization using DTCO simulation framework

Publication Date

9-23-2020

Document Type

Conference Proceeding

Publication Title

2020 International Conference on Simulation of Semiconductor Processes and Devices, (SISPAD)

Volume

2020-September

DOI

10.23919/SISPAD49475.2020.9241635

First Page

201

Last Page

204

Abstract

Neuromorphic inference circuits using emerging devices (e.g. ReRAM) are very promising for ultra-low power edge computing such as in Internet-of-Thing. While ReRAM synapse is used as an analog device for matrix-vector-multiplications, the neuron activation unit (e.g. ReLU) is generally digital. To further minimize its power and area consumption, fully analog neuromorphic circuits are needed. This requires Design-Technology Co-Optimization (DTCO). In this paper, we use our Software+DTCO framework for fully analog neuromorphic inference circuit optimization using ReRAM as an example. The interaction between software machine learning, ReRAM, current comparator, and ReLU are studied. It is found that the neuromorphic circuit is very robust to the variation of ReLU, which confirms the importance of DTCO simulation.

Funding Sponsor

San José State University

Keywords

Circuit Simulation, DTCO, Machine Learning, Neuromorphic, ReLU, ReRAM, Verilog-A

Department

Mathematics and Statistics; Electrical Engineering

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