Kwantae Kim

Position:	Postdoc
Email:	kwantae@ini.uzh.ch
Work phone:

I received my B.S., M.S. and Ph.D. degrees in EE from KAIST, South Korea, in 2015, 2017, and 2021, respectively, supervised by prof. Hoi-Jun Yoo.
During the Ph.D. course, I was a Visiting Student in INI, supervised by profs. Shih-Chii Liu and Tobi Delbruck in 2020.

I've participated in the design of 10 Silicon Chips over 6 Years related to: Biomedical Sensor (Bio-Z/ECG); Neuromorphic Audio Sensor (Analog Feature Extractor).

I've experienced Silicon-Verified Mixed-Signal circuit design flows especially on: Analog Full-Custom (Schematic, Layout); Digital Synthesis (RTL, Gate-Level, P&R); Integration/Co-Verification with Full-Custom and Synthesized Circuits.

Supervisor

Shih-Chii Liu

Publications

2023

Kwantae Kim, Shih-Chii Liu A 3.11 μW 40 nV/√Hz Instrumentation Amplifier for Bio-Impedance Sensors Exploiting Positive-Feedback-Assisted Gain Boosting, IEEE International Symposium on Circuits and Systems (ISCAS), 2023
Kwantae Kim, Shih-Chii Liu Continuous-Time Analog Filters for Audio Edge Intelligence: Review on Circuit Designs, IEEE Circuits and Systems Magazine (CASM), 2023
Qinyu Chen, Yaoxing Chang, Kwantae Kim, Chang Gao, Shih-Chii Liu An Area-Efficient Ultra-Low-Power Time-Domain Feature Extractor for Edge Keyword Spotting, IEEE International Symposium on Circuits and Systems, 2023 pdf
Sangyeob Kim, Sangjin Kim, Soyeon Um, Soyeon Kim, Kwantae Kim, and Hoi-Jun Yoo Neuro-CIM: ADC-less Neuromorphic Computing-in-Memory Processor with Operation Gating/Stopping and Digital-Analog Networks, IEEE Journal of Solid-State Circuits (JSSC), 2023
Zhou, S., Chen, X, Kim, K., and Liu, S-C. High-accuracy and energy-efficient acoustic inference using hardware-aware training and a 0.34 nW/Ch full-wave rectifier, IEEE International Conference on Artificial Intelligence Circuits and Systems, 2023

2022

Kwantae Kim, Chang Gao, Rui Graça, Ilya Kiselev, Hoi-Jun Yoo, Tobi Delbruck, Shih-Chii Liu A 23-μW Keyword Spotting IC with Ring-Oscillator-Based Time-Domain Feature Extraction, IEEE Journal of Solid-State Circuits (JSSC), 2022
Kwantae Kim*, Chang Gao*, Rui Graça, Ilya Kiselev, Hoi-Jun Yoo, Tobi Delbruck, Shih-Chii Liu A 23μW Solar-Powered Keyword Spotting ASIC with Ring-Oscillator-Based Time-Domain Feature Extraction, IEEE International Solid-State Circuit Conference (ISSCC), 2022
Kwantae Kim, Sangyeob Kim, Hoi-Jun Yoo Design of Sub-10-μW Sub-0.1% THD Sinusoidal Current Generator IC for Bio-Impedance Sensing, IEEE Journal of Solid-State Circuits (JSSC), 2022
Liu, S-C., Gao, C., Kim, K., and Delbruck, T. Energy-efficient activity-driven computing architectures for edge intelligence, 2022 IEEE International Electron Devices Meeting (IEDM), 2022
Sangyeob Kim, Sangjin Kim, Soyeon Um, Soyeon Kim, Kwantae Kim and Hoi-Jun Yoo Neuro CIM: A 310.4 TOPS/W Neuromorphic Computing in Memory Processor with Low WL/BL Activity and Digital-Analog Mixed-Mode Neuron Firing, IEEE Symposium on VLSI Circuits, 2022
Sangyeob Kim, Sangjin Kim, Soyeon Um, Soyeon Kim, Kwantae Kim, and Hoi-Jun Yoo Neuro-CIM: A 310.4 TOPS/W Neuromorphic Computing-in-Memory Processor with Low WL/BL activity and Digital-Analog Mixed-mode Neuron Firing, IEEE Hot Chips Symposium, 2022
Surin Gweon, Sanghoon Kang, Kwantae Kim, Hoi-Jun Yoo FlashMAC: A Time Frequency Hybrid MAC Architecture with Variable Latency Aware Scheduling for TinyML Systems, IEEE Journal of Solid State Circuits (JSSC), 2022

2021

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

2020

Jaehyuk Lee, Surin Gweon, Kwonjoon Lee, Soyeon Um, Kyoung-Rog Lee, Kwantae Kim, Jihee Lee, Hoi-Jun Yoo A 9.6 mW/Ch 10 MHz Wide-bandwidth Electrical Impedance Tomography IC with Accurate Phase Compensation for Breast Cancer Detection, IEEE Custom Integrated Circuits Conference (CICC), 2020
Kwantae Kim, Changhyeon Kim, Sungpill Choi, Hoi-Jun Yoo A 0.5V, 6.2μW, 0.059mm² Sinusoidal Current Generator IC with 0.088% THD for Bio-Impedance Sensing, IEEE Symposium on VLSI Circuits, 2020
Kwantae Kim, Ji-Hoon Kim, Surin Gweon, Minseo Kim, Hoi-Jun Yoo A 0.5-V Sub-10-μW 15.28-mΩ/√ Hz Bio-Impedance Sensor IC With Sub-1° Phase Error, IEEE Journal of Solid-State Circuits (JSSC), 55:(8) 2161-2173, 2020

2019

Ji-Hoon Kim, Changhyeon Kim, Kwantae Kim, Hoi-Jun Yoo An Ultra-Low-Power Analog-Digital Hybrid CNN Face Recognition Processor Integrated with a CIS for Always-On Mobile Devices, IEEE International Symposium on Circuits and Systems (ISCAS), 2019
Kwantae Kim, Ji-Hoon Kim, Surin Gweon, Jiwon Lee, Minseo Kim, Yongsu Lee, Soyeon Kim, Hoi-Jun Yoo A 0.5 V 9.26 μW 15.28 mΩ/√ Hz Bio-Impedance Sensor IC With 0.55° Overall Phase Error, IEEE International Solid-State Circuits Conference-(ISSCC), 2019
Surin Gweon, Jaehyuk Lee, Kwantae Kim, Hoi-Jun Yoo 93.8% Current Efficiency and 0.672 ns Transient Response Reconfigurable LDO for Wireless Sensor Network Systems, IEEE International Symposium on Circuits and Systems (ISCAS), 2019
Yongsu Lee, Kwantae Kim, Jiwon Lee, Kyoung-Rog Lee, Surin Gweon, Minseo Kim, Hoi-Jun Yoo A 7.0 fps Optical and Electrical Dual Tomographic Imaging SoC for Skin-Disease Diagnosis System, IEEE International Solid-State Circuits Conference-(ISSCC), 2019

2017

Kwantae Kim, Kiseok Song, Kyeongryeol Bong, Jaehyuk Lee, Kwonjoon Lee, Yongsu Lee, Unsoo Ha, Hoi-Jun Yoo A 24 μW 38.51 mΩrms Resolution Bio-Impedance Sensor with Dual Path Instrumentation Amplifier, IEEE European Solid State Circuits Conference (ESSCIRC), 2017
Minseo Kim, Hyunki Kim, Jaeeun Jang, Jihee Lee, Jaehyuk Lee, Jiwon Lee, Kyungrog Lee, Kwantae Kim, Yongsu Lee, Hoi-jun Yoo A 1.4 mΩ-Sensitivity 94dB-Dynamic-Range Electrical Impedance Tomography SoC and 48-Channel Hub SoC for 3D Lung Ventilation Monitoring System, IEEE International Solid-State Circuits Conference (ISSCC), 2017
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 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, IEEE Journal of Solid-State Circuits (JSSC), 52:(11) 2829-2842, 2017
Unsoo Ha, Jaehyuk Lee, Jihee Lee, Kwantae Kim, Minseo Kim, Taehwan Roh, Sangsik Choi, Hoi-Jun Yoo A 25.2 mW EEG-NIRS Multimodal SoC for Accurate Anesthesia Depth Monitoring, IEEE International Solid-State Circuits Conference (ISSCC), 2017

2016

Kwantae Kim, Minseo Kim, Hyunwoo Cho, Kwonjoon Lee, Seung-Tak Ryu, Hoi-Jun Yoo A 54-μW Fast-Settling Arterial Pulse Wave Sensor for Wrist Watch Type System, IEEE International Symposium on Circuits and Systems (ISCAS), 2016
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 A 141µW Sensor SoC on OLED/OPD Substrate for SpO2/ExG Monitoring Sticker, IEEE International Solid-State Circuits Conference (ISSCC), 2016

29.09.23 16:00	Xiaomin Zhang Brain Research Insitute, University of Zurich Zurich, Switzerland	"Mechanisms of Memory Discrimination and Consolidation in the Hippocampus"
06.10.23 16:00	Daniela Vallentin Max Planck Institute for Biological Intelligence Seewiesen, Germany	"Neural mechanisms of vocal learning and production in songbirds"
13.10.23 16:00	Botond Roska Institute of Molecular and Clinical Ophthalmology Basel Basel, Switzerland	"New technologies for Neuroscience"
20.10.23 16:00	Alex Cayco-Gajic Ecole Normale Supérieur Paris, France	"Linking high dimensional neural activity to behavior"