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Wooseok Choi
Wooseok Choi
IBM Research Europe - Zurich
Verified email at ibm.com
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Cited by
Cited by
Year
Various threshold switching devices for integrate and fire neuron applications
D Lee, M Kwak, K Moon, W Choi, J Park, J Yoo, J Song, S Lim, C Sung, ...
Advanced Electronic Materials 5 (9), 1800866, 2019
1132019
Ionic Sieving Through One‐Atom‐Thick 2D Material Enables Analog Nonvolatile Memory for Neuromorphic Computing
RD Nikam, J Lee, W Choi, W Banerjee, M Kwak, M Yadav, H Hwang
Small 17 (44), 2103543, 2021
412021
Pr0.7Ca0.3MnO3-Based Three-Terminal Synapse for Neuromorphic Computing
C Lee, KG Rajput, W Choi, M Kwak, RD Nikam, S Kim, H Hwang
IEEE Electron Device Letters 41 (10), 1500-1503, 2020
212020
Impact of electrolyte density on synaptic characteristics of oxygen-based ionic synaptic transistor
C Lee, W Choi, M Kwak, S Kim, H Hwang
Applied Physics Letters 119 (10), 2021
192021
Improved synaptic functionalities of Li-based nano-ionic synaptic transistor with ultralow conductance enabled by Al2O3 barrier layer
K Lee, M Kwak, W Choi, C Lee, J Lee, S Noh, J Lee, H Lee, H Hwang
Nanotechnology 32 (27), 275201, 2021
162021
WOx-Based Synapse Device With Excellent Conductance Uniformity for Hardware Neural Networks
W Choi, SG Gi, D Lee, S Lim, C Lee, BG Lee, H Hwang
IEEE Transactions on Nanotechnology 19, 594-600, 2020
152020
Hardware implementation of neural network using pre-programmed resistive device for pattern recognition
W Choi, K Moon, M Kwak, C Sung, J Lee, J Song, J Park, SA Chekol, ...
Solid-State Electronics 153, 79-83, 2019
132019
Excellent Synapse Characteristics of 50 nm Vertical Transistor with WOx channel for High Density Neuromorphic system
C Lee, W Choi, M Kwak, S Kim, H Hwang
2021 Symposium on VLSI Technology, 1-2, 2021
122021
Enhanced switching characteristics of an ovonic threshold switching device with an ultra-thin MgO interfacial layer
J Lee, S Lee, M Kwak, W Choi, O Mosendz, H Hwang
IEEE Electron Device Letters 43 (2), 220-223, 2021
112021
Excellent pattern recognition accuracy of neural networks using hybrid synapses and complementary training
M Kwak, W Choi, S Heo, C Lee, R Nikam, S Kim, H Hwang
IEEE Electron Device Letters 42 (4), 609-612, 2021
92021
Hardware Neural Network using Hybrid Synapses via Transfer Learning: WOx Nano-Resistors and TiOx RRAM Synapse for Energy-Efficient Edge-AI Sensor
W Choi, M Kwak, S Heo, K Lee, S Lee, H Hwang
2021 IEEE International Electron Devices Meeting (IEDM), 23.1. 1-23.1. 4, 2021
82021
Impact of operating temperature on pattern recognition accuracy of resistive array-based hardware neural networks
W Choi, C Lee, S Noh, J Lee, H Lee, S Kim, H Hwang
IEEE Electron Device Letters 42 (5), 763-766, 2021
82021
On-chip integrated atomically thin 2D material heater as a training accelerator for an electrochemical random-access memory synapse for neuromorphic computing application
RD Nikam, J Lee, W Choi, D Kim, H Hwang
ACS nano 16 (8), 12214-12225, 2022
62022
Improved On-chip Training Efficiency at Elevated Temperature and Excellent Inference Accuracy with Retention (> 108 s) of ECRAM Synapse …
C Lee, M Kwak, W k Choi, S Kim, H Hwang
2021 IEEE International Electron Devices Meeting (IEDM), 12.3. 1-12.3. 4, 2021
62021
Neural network training acceleration with RRAM-based hybrid synapses
W Choi, M Kwak, S Kim, H Hwang
Frontiers in Neuroscience 15, 690418, 2021
32021
OTS-based analog-to-stochastic converter for fully-parallel weight update in cross-point array neural networks
M Kwak, S Lee, W Choi, C Lee, S Kim, H Hwang
2021 Symposium on VLSI Technology, 1-2, 2021
32021
Enhanced ON/OFF Ratio (4× 105) and Robust Endurance (> 1010) in an InGaZnO/HfxZr1-xO2 Ferroelectric Diode via Defect Engineering
L Jung, S Oh, H Jang, K Lee, W Choi, H Hwang
IEEE Transactions on Electron Devices 71 (3), 2238-2242, 2024
12024
Experimental Demonstration of Probabilistic-Bit (p-bit) Utilizing Stochastic Oscillation of Threshold Switch Device
S Heo, D Kim, W Choi, S Ban, O Kwon, H Hwang
2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and …, 2023
12023
NbO2 selector device with Ge2Sb2Te5 thermal barrier for low off current (300 nA) and low power operation
O Kwon, J Lee, K Lee, W Choi, H Hwang
Applied Physics Letters 122 (11), 2023
12023
Exploiting Read Current Noise of TiOx Resistive Memory by Controlling Forming Conditions for Probabilistic Neural Network Hardware
W Choi, W Ji, S Heo, D Lee, K Noh, C Lee, J Woo, S Kim, H Hwang
IEEE Electron Device Letters 43 (9), 1571-1574, 2022
12022
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