Research

국제전문학술지

• Verification of neuromorphic processing accuracy against nonideal errors in synapsebased neural network systems, International Journal of Circuit Theory and Applications, , 53, 453-465 (2025 )
• Retentionaware zeroshifting technique for TikiTaka algorithmbased analog deep learning accelerator, Science Advances, , 10, - (2024 )
• Attojoule Hexagonal Boron NitrideBased Memristor for HighPerformance Neuromorphic Computing, Small, , 20, - (2024 )
• A Multibit ECRAMBased Analog Neuromorphic System with HighPrecision Current Readout Achieving 973 Inference Accuracy, IEEE Transactions on Biomedical Circuits and Systems, , , - (2024 )
• Design Strategies of CapacitorBased Synaptic Cell for HighEfficiency Analog Neural Network Training, Advanced Intelligent Systems, , , - (2024 )
• Electrochemical randomaccess memory recent advances in materials devices and systems towards neuromorphic computing, Nano Convergence, , 11, - (2024 )
• Device Specifications for Neural Network Training with Analog Resistive Cross‐Point Arrays Using Tiki‐Taka Algorithms, Advanced Intelligent Systems, , , - (2024 )
• Atomically Thin Synapse Networks on Van Der Waals PhotoMemtransistors, Advanced Materials, , , - (2023 )
• Highly Linear and Symmetric Analog Neuromorphic Synapse Based on Metal Oxide Semiconductor Transistors with SelfAssembled Monolayer for HighPrecision Neural Network Computation, Advanced Electronic Materials, , , - (2023 )
• Recent Advances and Future Prospects for Memristive Materials Devices and Systems, ACS Nano, , , - (2023 )
• WOx channel engineering of Cuiondriven synaptic transistor array for lowpower neuromorphic computing, Scientific Reports, , 13, - (2023 )
• Accurate Weight Update in an Electrochemical RandomAccess Memory Based CrossPoint Array Using ChannelHigh HalfBias Scheme for Deep Learning Accelerator, Advanced Electronic Materials, , 9, - (2023 )
• Impact of Asymmetric Weight Update on Neural Network Training With TikiTaka Algorithm, Frontiers in Neuroscience, , 15, - (2022 )
• Neural Network Training With Asymmetric Crosspoint Elements, Frontiers in Artificial Intelligence, , 5, - (2022 )
• Vertical MetalOxide Electrochemical Memory for HighDensity Synaptic Array Based HighPerformance Neuromorphic Computing, ADVANCED ELECTRONIC MATERIALS, , 8, - (2022 )
• Exploiting Read Current Noise of TiOx Resistive Memory by Controlling Forming Conditions for Probabilistic Neural Network Hardware, IEEE ELECTRON DEVICE LETTERS, , 43, 1571-1574 (2022 )
• Effect of Stochastic Resonance on Classification Accuracy of Neural Networks Utilizing Inherent Stochasticity in Threshold Voltage of Ovonic Threshold Switching Device, IEEE Journal of the Electron Devices Society, , 10, 666-669 (2022 )
• IntegrateandFire Neuron With LiBased Electrochemical Random Access Memory Using Native Linear Current Integration Characteristics, IEEE Transactions on Electron Devices, , 69, 4889-4893 (2022 )
• Impact of Operating Temperature on Pattern Recognition Accuracy of Resistive ArrayBased Hardware Neural Networks, IEEE ELECTRON DEVICE LETTERS, , 42, 763-766 (2021 )
• Neural Network Training Acceleration With RRAMBased Hybrid Synapses, FRONTIERS IN NEUROSCIENCE, , 15, - (2021 )
• Excellent Pattern Recognition Accuracy of Neural Networks Using Hybrid Synapses and Complementary Training, IEEE Electron Device Letters, , 42, 609-612 (2021 )
• Experimental measurement of ungated channel region conductance in a multiterminal metal oxidebased ECRAM, SEMICONDUCTOR SCIENCE AND TECHNOLOGY, , 36, - (2021 )
• Elucidating Ionic Programming Dynamics of MetalOxide Electrochemical Memory for Neuromorphic Computing, Advanced Electronic Materials, , 7, - (2021 )
• Improvement of Synaptic Properties in OxygenBased Synaptic Transistors Due to the Accelerated Ion Migration in SubStoichiometric Channels, Advanced Electronic Materials, , 7, - (2021 )
• Impact of electrolyte density on synaptic characteristics of oxygenbased ionic synaptic transistor, Applied Physics Letters, , 119, - (2021 )
• Alloying conducting channels for reliable neuromorphic computing, NATURE NANOTECHNOLOGY, , 15, 574- (2020 )
• Improved Pattern Recognition Accuracy of Hardware Neural Network Deactivating Short Failed Synapse Device by Adopting Ovonic Threshold Switching OTSBased Fuse Device, IEEE ELECTRON DEVICE LETTERS, , 41, 1436-1439 (2020 )
• Pr07Ca03MnO3Based ThreeTerminal Synapse for Neuromorphic Computing, IEEE ELECTRON DEVICE LETTERS, , 41, 1500-1503 (2020 )
• Hardware and Software Cooptimization for the Initialization Failure of the ReRAMbased Crossbar Array, ACM JOURNAL ON EMERGING TECHNOLOGIES IN COMPUTING SYSTEMS, , 16, - (2020 )
• Signal and noise extraction from analog memory elements for neuromorphic computing, Nature Communications, , 9, - (2018 )
• Unveiling the carrier transport mechanism in epitaxial graphene for forming waferscale singledomain graphene, Proceedings of the National Academy of Sciences of the United States of America, , 114, 4082-4086 (2017 )
• Neuromorphic computing using nonvolatile memory, Advances in Physicsx, , 2, 89-124 (2017 )
• Quantum Hall effect in Bernal stacked and twisted bilayer graphene grown on Cu by chemical vapor deposition, PHYSICAL REVIEW B, , 85, 201408-201413 (2012 )
• Coulomb drag and magnetotransport in graphene double layers, Solid State Communications, , 152, 1283-1288 (2012 )
• Scaling of Al2O3 dielectric for graphene fieldeffect transistors, Applied Physics Letters, , 100, 93112- (2012 )
• Direct Measurement of the Fermi Energy in Graphene Using a DoubleLayer Heterostructure, PHYSICAL REVIEW LETTERS, , 108, 116404-116409 (2012 )
• Magnetotransport Properties of QuasiFreeStanding Epitaxial Graphene Bilayer on SiC Evidence for Bernal Stacking, Nano Letters, , 11, 3624-3628 (2011 )
• Spin to Valley Polarized Transition in Graphene Bilayers at ν 0 in High Magnetic Fields, Physical Review Letters, , 107, 16803- (2011 )
• Coulomb drag of massless fermions in graphene, Physical Review B Condensed Matter and Materials Physics, , 83, 161401- (2011 )
• LowFrequency Acoustic Phonon Temperature Distribution in Electrically Biased Graphene, Nano Letters, , 11, 85-90 (2010 )
• Graphene for CMOS and Beyond CMOS Applications, Proceedings of the IEEE, , 98, 2032-2046 (2010 )
• LargeArea Synthesis of HighQuality and Uniform Graphene Films on Copper Foils, Science, , 324, 1312-1314 (2009 )
• Realization of a high mobility dualgated graphene fieldeffect transistor with Al2O3 dielectric, Applied Physics Letters, , 94, - (2009 )
• Dielectric thickness dependence of carrier mobility in graphene with HfO2 top dielectric, Applied Physics Letters, , , - (0020 )

학회발표

• Excellent Synaptic Characteristics and Halfbias selectivity in Vertical Shortchannel ECRAM and selectorfree 4k Crosspoint Array Demonstration, , 0, 0, - (2024)
• Revealing Oxygen Donor Level in Tungsten Oxide Films for Neuromorphic Applications with Parallel DipoleLine Hall System, , 0, 0, - (2024)
• Investigation of Contact Resistance between WOx Channel and Metal Electrodes in Electrochemical RandomAccess Memory, , 0, 0, - (2024)
• Challenges and Issues of 2T0C Device for DRAM Applications with respect to WriteRead Operation and 3D Cell Architectures, , 0, 0, - (2024)
• High Performance Neural Network Inference with a 3D NANDlike Synaptic Weight Storage, , 0, 0, - (2023)
• Reservoir Optimization on OxygenBased Electrochemical RandomAccess Memory for Improved Synaptic Characteristics, , 0, 0, - (2023)
• A Study on Metaloxide Based ECRAM Device Characteristics of Selectorfree Crosspoint Array for DNN, , 0, 0, - (2023)
• 시냅스 소자의 Retention 특성이 TikiTaka 알고리즘 기반 뉴럴 네트워크 학습의 정확도에 미치는 영향에 관한 연구, , 0, 0, - (2023)
• Relaxed Synaptic Device Specifications for Neural Network Training with TikiTaka Algorithm, , 0, 0, - (2022)
• Improved Onchip Training Efficiency at Elevated Temperature and Excellent Inference Accuracy with Retention 108 s of Pr07Ca03MnO3x ECRAM Synapse Device for Hardware Neural Network, 2021 IEEE International Electron Devices Meeting, 0, 0, - (2021)
• Excellent Synapse Characteristics of 50 nm Vertical Transistor with WOx channel for High Density Neuromorphic system, 2021 Symposium on VLSI Technology, 0, 0, - (2021)
• OTSbased AnalogtoStochastic Converter for FullyParallel Weight Update in Crosspoint Array Neural Networks, 2021 Symposium on VLSI Technology, 0, 0, - (2021)
• Timeresolved Conductance in Electrochemical Systems for Neuromorphic Computing, 2018 International Conference on Solid State Devices and Materials, 0, 0, - (2018)