Journal
IEEE ELECTRON DEVICE LETTERS
Volume 44, Issue 3, Pages 528-531Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2023.3240419
Keywords
Bio-inspired neuron; leaky integration-and-firing (LIF) neuron; ferroelectric devices; single device neuron; neuromorphic computing; spiking neural network (SNN)
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We propose a single device neuron called SD L-FeFET that simulates neuronal dynamics for both excitatory and inhibitory connections while reducing standby power. The spiking neural network (SNN) using SD L-FeFET achieves a pattern recognition accuracy of 92.5% for MNIST handwriting digits and 91.7% for face recognition, comparable to state-of-the-art SNN simulations with conventional complex cell designs.
We propose a single device neuron that utilizes a ferroelectric layer, a split gate, and a truncated floating gate structure. The proposed neuron device, named Single-Device Leaky-FeFET (SD L-FeFET), successfully emulates the neuronal dynamics for both excitatory and inhibitory connections while reducing the standby power by eliminating tail current. A spiking neural network (SNN) using the newly developed SD L-FeFET neuron shows MNIST handwriting digit pattern recognition of 92.5% and face recognition of 91.7%, which is comparable performance to the state-of-art SNN simulation results using conventional complex cell designs.
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