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Self-Selective Multi-Terminal Memtransistor Crossbar Array for In-Memory Computing

delete2021-01-14
delete106
PRE
AI
X
Xuewei Feng
S
Sifan Li
S
Swee Liang Wong
S
Shi Wun Tong
陈力 (Li Chen)
P
Panpan Zhang
L
Lingfei Wang
X
Xuanyao Fong
D
Dongzhi Chi
K
Kah‐Wee Ang *
DOI:10.1021/acsnano.0c09441delete
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Abstract

Abstract

En 中文
Two-terminal resistive switching devices are commonly plagued with longstanding scientific issues including interdevice variability and sneak current that lead to computational errors and high-power consumption. This necessitates the integration of a separate selector in a one-transistor-one-RRAM (1T-1R) configuration to mitigate crosstalk issue, which compromises circuit footprint. Here, we demonstrate a multiterminal memtransistor crossbar array with increased parallelism in programming via independent gate control, which allows in situ computation at a dense cell size of 3-4.5 F-2 and a minimal sneak current of 0.1 nA. Moreover, a low switching energy of 20 fJ/bit is achieved at a voltage of merely 0.42 V. The architecture is capable of performing multiply-and-accumulate operation, a core computing task for pattern classification. A high MNIST recognition accuracy of 96.87% is simulated owing to the linear synaptic plasticity. Such computing paradigm is deemed revolutionary toward enabling data-centric applications in artificial intelligence and Internet-of-things.
Keywords:
memtransistor
MoS2
self-selective
multi-terminal
in-memory computing
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Journal

ACS Nano cover
ACS Nano
IF:
16
Papers:
2.6W
Citations:
25.6W

Organization

A
agency for science technology & research (a*star)
Scholars:
2.2W
Papers: 1.9W
Citations: 57
N
National University of Singapore
Scholars:
7.5W
Papers: 6.5W
Citations: 11.4W