Publications

Highlights

10 First-Authored IEEE papers
→ 2 ISSCC, 3 JSSC, 1 VLSI, 1 ESSCIRC, etc

30 Authored/Co-Authored IEEE papers

First-Authored

*Co-First Authors

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A 23μW Solar-Powered Keyword-Spotting ASIC with Ring-Oscillator-Based Time-Domain Feature Extraction Kwantae Kim*; Chang Gao*; Rui Graça; Ilya Kiselev; Hoi-Jun Yoo; Tobi Delbruck; Shih-Chii Liu IEEE International Solid-State Circuits Conference (ISSCC), 2022 📚 Invited to IEEE JSSC 2022
A 0.5V 9.26μW 15.28mΩ/√Hz Bio-Impedance Sensor IC With 0.55° Overall Phase Error Kwantae Kim; Ji-Hoon Kim; Surin Gweon; Jiwon Lee; Minseo Kim; Yongsu Lee; Soyeon Kim; Hoi-Jun Yoo IEEE International Solid-State Circuits Conference (ISSCC), 2019 Silver Award in 2019 Samsung HumanTech paper competition
A 23-μW Keyword Spotting IC With Ring-Oscillator-Based Time-Domain Feature Extraction Kwantae Kim; Chang Gao; Rui Graça; Ilya Kiselev; Hoi-Jun Yoo; Tobi Delbruck; Shih-Chii Liu IEEE Journal of Solid-State Circuits (JSSC), 2022 🎉 Highlighted in the IEEExplore Main Page (Sep. ~ Oct. 2023) 🎉 Top-2 in the Most Popular Articles in IEEE JSSC (Sep. ~ Oct. 2023)
Design of Sub-10-μW Sub-0.1% THD Sinusoidal Current Generator IC for Bio-Impedance Sensing Kwantae Kim; Sangyeob Kim; Hoi-Jun Yoo IEEE Journal of Solid-State Circuits (JSSC), 2022 MATLAB/Verilog Code in PhD Thesis Relevant Publication
A 0.5-V Sub-10-μW 15.28-mΩ/√Hz Bio-Impedance Sensor IC With Sub-1° Phase Error Kwantae Kim; Ji-Hoon Kim; Surin Gweon; Minseo Kim; Hoi-Jun Yoo IEEE Journal of Solid-State Circuits (JSSC), 2020
Continuous-Time Analog Filters for Audio Edge Intelligence: Review on Circuit Designs Kwantae Kim; Shih-Chii Liu IEEE Circuits and Systems Magazine, 2023 🎉 Top-1 in the Most Popular Articles in IEEE CAS Magazine (Sep. ~ Oct. 2023)
A 0.5V, 6.2μW, 0.059mm2 Sinusoidal Current Generator IC with 0.088% THD for Bio-Impedance Sensing Kwantae Kim; Changhyeon Kim; Sungpill Choi; Hoi-Jun Yoo IEEE Symposium on VLSI Circuits (S.VLSI), 2020
A 24 μW 38.51 mΩrms Resolution Bio-Impedance Sensor with Dual Path Instrumentation Amplifier Kwantae Kim; Kiseok Song; Kyeongryeol Bong; Jaehyuk Lee; Kwonjoon Lee; Yongsu Lee; Unsoo Ha; Hoi-Jun Yoo IEEE European Solid State Circuits Conference (ESSCIRC), 2017
A 3.11 μW 40 nV/√Hz Instrumentation Amplifier for Bio-Impedance Sensors Exploiting Positive-Feedback-Assisted Gain Boosting Kwantae Kim; Shih-Chii Liu IEEE International Symposium on Circuits and Systems (ISCAS), 2023 📚 Open-Sourced Design Parameters
A 54-μW Fast-Settling Arterial Pulse Wave Sensor for Wrist Watch Type System Kwantae Kim; Minseo Kim; Hyunwoo Cho; Kwonjoon Lee; Seung-Tak Ryu; Hoi-Jun Yoo IEEE International Symposium on Circuits and Systems (ISCAS), 2016

Co-Authored

2025

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A 8.62μW, 75dB DRSoC End-to-End Spoken Language Understanding SoC with Channel-Level AGC and Temporal-Sparsity-Aware Streaming-Mode RNN Sheng Zhou, Zixiao Li, Tobi Delbruck, Kwantae Kim, Shih-Chii Liu IEEE International Solid-State Circuits Conference (ISSCC), 2025

2024

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Bringing Dynamic Sparsity to the Forefront for Low-Power Audio Edge Computing: Brain-inspired approach for sparsifying network updates Shih-Chii Liu, Sheng Zhou, Zixiao Li, Chang Gao, Kwantae Kim, Tobi Delbruck IEEE Solid-State Circuits Magazine, 2024
Open-Source Silicon—Unleashing Innovation and Collaboration Matthew Guthaus, Kwantae Kim, Francisco Brito-Filho, Satoshi Kawakami, Boris Murmann IEEE Design & Test, 2024

2023

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Neuro-CIM: ADC-Less Neuromorphic Computing-in-Memory Processor With Operation Gating/Stopping and Digital–Analog Networks Sangyeob Kim; Sangjin Kim; Soyeon Um; Soyeon Kim; Kwantae Kim; Hoi-Jun Yoo IEEE Journal of Solid-State Circuits (JSSC), 2023
High-Accuracy and Energy-Efficient Acoustic Inference using Hardware-Aware Training and a 0.34nW/Ch Full-Wave Rectifier Sheng Zhou*; Xi Chen*; Kwantae Kim; Shih-Chii Liu IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS), 2023 Best Poster Award
An Area-Efficient Ultra-Low-Power Time-Domain Feature Extractor for Edge Keyword Spotting Qinyu Chen; Yaoxing Chang; Kwantae Kim; Chang Gao; Shih-Chii Liu IEEE International Symposium on Circuits and Systems (ISCAS), 2023

2022

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Energy-Efficient Activity-driven Computing Architectures for Edge Intelligence Shih-Chii Liu; Chang Gao; Kwantae Kim; Tobi Delbruck IEEE International Electron Devices Meeting (IEDM), 2022
Neuro-CIM: A 310.4 TOPS/W Neuromorphic Computing-in-Memory Processor with Low WL/BL activity and Digital-Analog Mixed-mode Neuron Firing Sangyeob Kim; Sangjin Kim; Soyeon Um; Soyeon Kim; Kwantae Kim; Hoi-Jun Yoo IEEE Hot Chips Symposium (HCS), 2022
FlashMAC: A Time-Frequency Hybrid MAC Architecture With Variable Latency-Aware Scheduling for TinyML Systems Surin Gweon; Sanghoon Kang; Kwantae Kim; Hoi-Jun Yoo IEEE Journal of Solid-State Circuits (JSSC), 2022
Neuro-CIM: A 310.4 TOPS/W Neuromorphic Computing-in-Memory Processor with Low WL/BL activity and Digital-Analog Mixed-mode Neuron Firing Sangyeob Kim; Sangjin Kim; Soyeon Um; Soyeon Kim; Kwantae Kim; Hoi-Jun Yoo IEEE Symposium on VLSI Circuits (S.VLSI), 2022

2021

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FlashMAC: An Energy-Efficient Analog-Digital Hybrid MAC with Variable Latency-Aware Scheduling Surin Gweon; Sanghoon Kang; Donghyeon Han; Kyoung-Rog Lee; Kwantae Kim; Hoi-Jun Yoo IEEE Asian Solid-State Circuits Conference (A-SSCC), 2021

2020

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A 9.6 mW/Ch 10 MHz Wide-bandwidth Electrical Impedance Tomography IC with Accurate Phase Compensation for Breast Cancer Detection Jaehyuk Lee; Surin Gweon; Kwonjoon Lee; Soyeon Um; Kyoung-Rog Lee; Kwantae Kim; Jihee Lee; Hoi-Jun Yoo IEEE Custom Integrated Circuits Conference (CICC), 2020

2019

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An Ultra-Low-Power Analog-Digital Hybrid CNN Face Recognition Processor Integrated with a CIS for Always-on Mobile Devices Ji-Hoon Kim; Changhyeon Kim; Kwantae Kim; Hoi-Jun Yoo IEEE International Symposium on Circuits and Systems (ISCAS), 2019
93.8% Current Efficiency and 0.672 ns Transient Response Reconfigurable LDO for Wireless Sensor Network Systems Surin Gweon; Jaehyuk Lee; Kwantae Kim; Hoi-Jun Yoo IEEE International Symposium on Circuits and Systems (ISCAS), 2019
A 7.0fps Optical and Electrical Dual Tomographic Imaging SoC for Skin-Disease Diagnosis System Yongsu Lee; Kwantae Kim; Jiwon Lee; Kyoung-Rog Lee; Surin Gweon; Minseo Kim; Hoi-Jun Yoo IEEE International Solid-State Circuits Conference (ISSCC), 2019

2017

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A 1.4-mΩ-Sensitivity 94-dB Dynamic-Range Electrical Impedance Tomography SoC and 48-Channel Hub-SoC for 3-D Lung Ventilation Monitoring System Minseo Kim; Jaeeun Jang; Hyunki Kim; Jihee Lee; Jaehyuck Lee; Jiwon Lee; Kyoung-Rog Lee; Kwantae Kim; Yongsu Lee; Kyuho Jason Lee; Hoi-Jun Yoo IEEE Journal of Solid-State Circuits (JSSC), 2017
An Adaptive DC-Balanced and Multi-Mode Stimulator IC with 1GΩ Output Impedance for Compact Electro-Acupuncture System Jiwon Lee; Minseo Kim; Kwantae Kim; Kiseok Song; Sanghoon Lee; Weon Kim; Jong Shin Woo; Hoi-Jun Yoo IEEE Engineering in Medicine and Biology Society (EMBC), 2017
A 1.4mΩ-Sensitivity 94dB-Dynamic-Range Electrical Impedance Tomography SoC and 48-Channel Hub SoC for 3D Lung Ventilation Monitoring System Minseo Kim; Hyunki Kim; Jaeeun Jang; Jihee Lee; Jaehyuk Lee; Jiwon Lee; Kyungrog Lee; Kwantae Kim; Yongsu Lee; Hoi-jun Yoo IEEE International Solid-State Circuits Conference (ISSCC), 2017
A 25.2mW EEG-NIRS Multimodal SoC for Accurate Anesthesia Depth Monitoring Unsoo Ha; Jaehyuk Lee; Jihee Lee; Kwantae Kim; Minseo Kim; Taehwan Roh; Sangsik Choi; Hoi-Jun Yoo IEEE International Solid-State Circuits Conference (ISSCC), 2017

2016

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A 141μW Sensor SoC on OLED/OPD Substrate for SpO2/ExG Monitoring Sticker Yongsu Lee; Hyeonwoo Lee; Jaeeun Jang; Jihee Lee; Minseo Kim; Jaehyuk Lee; Hyunki Kim; Kyoung-Rog Lee; Kwantae Kim; Hyunwoo Cho; Seunghyup Yoo; Hoi-Jun Yoo IEEE International Solid-State Circuits Conference (ISSCC), 2016

Acknowledgments
Thanks to Zuowen Wang for taking the photo during my presentation!