Detailed Information

Cited 1 time in webofscience Cited 2 time in scopus
Metadata Downloads

A 2D material-based floating gate device with linear synaptic weight update

Authors
Park, EunpyoKim, MinkyungKim, Tae SooKim, In SooPark, JongkilKim, JaewookJeong, YeonJooLee, SuyounKim, InhoPark, Jong-KeukKim, Gyu TaeChang, JiwonKang, KibumKwak, Joon Young
Issue Date
28-12월-2020
Publisher
ROYAL SOC CHEMISTRY
Citation
NANOSCALE, v.12, no.48, pp.24503 - 24509
Indexed
SCIE
SCOPUS
Journal Title
NANOSCALE
Volume
12
Number
48
Start Page
24503
End Page
24509
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/50757
DOI
10.1039/d0nr07403a
ISSN
2040-3364
Abstract
Neuromorphic computing is of great interest among researchers interested in overcoming the von Neumann computing bottleneck. A synaptic device, one of the key components to realize a neuromorphic system, has a weight that indicates the strength of the connection between two neurons, and updating this weight must have linear and symmetric characteristics. Especially, a transistor-type device has a gate terminal, separating the processes of reading and updating the conductivity, used as a synaptic weight to prevent sneak path current issues during synaptic operations. In this study, we fabricate a top-gated flash memory device based on two-dimensional (2D) materials, MoS2 and graphene, as a channel and a floating gate, respectively, and Al2O3 and HfO2 to increase the tunneling efficiency. We demonstrate the linear weight updates and repeatable characteristics of applying negative/positive pulses, and also emulate spike timing-dependent plasticity (STDP), one of the learning rules in a spiking neural network (SNN).
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > School of Electrical Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Kim, Gyu Tae photo

Kim, Gyu Tae
공과대학 (전기전자공학부)
Read more

Altmetrics

Total Views & Downloads

BROWSE