Welcome to the BASIC Lab! 

고려대학교 전기전자공학부 융합회로설계연구실 이형민 교수님

Our research spans a wide range of areas from analog / mixed-signal integrated circuit (IC) design to emerging microsystem applications. We especially focus on biomedical / sensor / power / display / neuromorphic systems that need miniaturized low-power high-performance IC solutions for efficient and effective sensing, processing, interfacing, and powering.

Our research area includes the following applications.

  - Low-power high-performance analog / mixed-signal IC design  

  - Biomedical system / neural interface system / implantable device / sensor IC design

  - Power management IC / DC-DC converter / regulator / wireless power / energy harvesting IC design

  - Display driver / pixel compensation / touch sensor IC design

  - Neuromorphic hardware / architecture / IC design

  - Any emerging microsystems that need IC solutions

News

2024

[2024.12] Prof. Lee was elevated to IEEE Senior Member.

[2024.12] Seung Hun Choi received the Bronze Paper Award (touch sensing analog front-end) from IEEE Seoul Section Student Paper Contest.

[2024.11] Kyeongho Eom received the IEEE SSCS–Brain Best Paper Award for his ISSCC 2023 paper (Sub-Retinal Prosthesis SoC) from IEEE Solid-State Circuits Society (IEEE Solid-State Circuits Magazine Fall 2024, KU News1, KU News2).

[2024.11] Energy-Efficient Wearable ECG Acquisition System (Seung Hun Choi) was accepted in IEEE Transactions on Instrumentation and Measurement (TIM).

[2024.11] Kyeongho Eom received the ISSCC 2025 Student Travel Grant Award from IEEE Solid-State Circuits Society.

[2024.11] Prof. Lee received the Excellent Teaching Award (Electronic Circuits I in Spring 2024) from Korea University.

[2024.11] Hongseok Kim received the Best Paper Award (multi-phase buck converter) from IKEEE Summer Annual Conference 2024.

[2024.11] Average Amplitude Regulation Scheme in Retinal Prosthesis (Kyeongho Eom) was accepted in IEEE Solid-State Circuits Letters (SSCL).

[2024.10] Three papers were accepted in IEEE International Solid-State Circuits Conference (ISSCC) 2025 (KU News).

    - A 97.4%-Peak-Efficiency Always-Half-Inductor-Current Hybrid Bidirectional Converter (Yunho Lee)

    - A Real-Time OLED Pixel Compensator with Dual Slope Error Detection (Jaewoong Ahn)

    - A Compact 10b Source Driver IC with Sigma-Delta Pulse Width Modulation (Junyeol An)

[2024.09] Multi-bit ECRAM-Based Analog Neuromorphic System (Minseong Um) was accepted in IEEE Transactions on Biomedical Circuits and Systems (TBioCAS).

[2024.09] Ocular Muscle Stimulation Systems (Kyeongho Eom) was accepted in IEEE Transactions on Biomedical Engineering (TBME).

[2024.09] Optimal On/Off Timing Tracking Active Rectifier (Jisan Ahn) was accepted in IEEE Transactions on Biomedical Circuits and Systems (TBioCAS).

[2024.09] RF MEMS Sensor Driver/Readout SoC (Seung-Beom Ku) was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2024.09] Mannhee Cho received the Best Paper Award (automated bitstream analysis method) from Korean Conference on Semiconductors 2024.

[2024.09] Changwook Ahn (MS/PhD) joined our research group.

[2024.08] Woojoong Jung graduated from BASIC Lab with his PhD degrees. Dr. Jung becomes the first PhD from BASIC Lab!

[2024.08] Scalable Distributed Linear Regulator (Woojoong Jung) was accepted in IEEE Transactions on Industrial Electronics (TIE).

[2024.08] Jaewoong Ahn received the Kim Yong-Bae Gold Prize for his MS thesis (fully nonlinear compact OLED source driver) from Korean Information Display Society.

[2024.08] Kyeongho Eom received the PhD Research Fellowship (sub-retinal prosthesis system-on-chip) with 2-year research grant from National Research Foundation of Korea.

[2024.07] Seung-Beom Ku received the Best Chip Design Award (fully-integrated microplastic detection SoC) from Automotive System IC Fusion Human Resource Research Center.

[2024.07] Seung-Beom Ku received the Chip Design Contest Excellent Design Award (fully-integrated microplastic detection SoC) from IC Design Education Center Congress 2024.

[2024.07] Envelope-Detector-Less ASK Forward Telemetry (Hyun-Su Lee) was accepted in IEEE Transactions on Biomedical Circuits and Systems (TBioCAS).

[2024.06] Energy-Resuscitating Resonant Regulating Rectifier (Hyun-Su Lee) was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2024.05] Seung-Beom Ku received the Best Patent Award (microplastic detection system) from Automotive System IC Fusion Human Resource Research Center.

[2024.05] Tiki-Taka Algorithm-Based Analog Deep Learning Accelerator (w/ POSTECH) was accepted in Science Advances.

[2024.05] Verification​ ​of​ ​Neuromorphic​ ​Processing​ ​Accuracy (Hwijeong Jo, Minil Kang) was accepted in International​ ​Journal​ ​of​ ​Circuit​ ​Theory​ ​and​ ​Applications.

[2024.03] Prof. Lee joined the Technical Program Committee of IEEE International Solid-State Circuits Conference (ISSCC).

[2024.03] Han-Sol Lee joined the Neuralink, CA, USA as a research intern to develop the neural interface IC (2024.03 - 2024.11). 

[2024.03] Jaewoong Ahn (PhD) joined our research group.

[2024.02] Jaewoong Ahn and Junyeol An graduated from BASIC Lab with their MS degrees.

[2024.02] Integrated Microplastic Detection SoC (Seung-Beom Ku) was accepted in IEEE Radio Frequency Integrated Circuits Symposium (RFIC) 2024.

[2024.02] Kyeongho Eom received the 2023-2024 IEEE SSCS Pre-Doctoral Achievement Award from IEEE Solid-State Circuits Society.

[2024.02] Kyeongho Eom received the KU Achievement Award from Korea University.

[2024.02] Wide-Voltage-Range Three-Level Boost Converter (Junho Song) was accepted  in IEEE Transactions on Power Electronics (TPEL).

[2024.01] Analog Neuromorphic On-Chip Training System (Minil Kang) was accepted in IEEE Custom Integrated Circuits Conference (CICC) 2024.

[2024.01] Rowhammer Attacks in DRAM and Defense Methods (w/ Hongik Univ.) was accepted in Sensors.  

[2024.01] Jiyeon Choi (MS/PhD) joined our research group.

[2024.01] Prof. Lee was appointed as an Associate Editor of IEEE Transactions on Biomedical Circuits and Systems (TBioCAS).

2023

[2023.12] Hyun-Su Lee received the Best Chip Design Award (SIMO resonant regulating rectifier) from Automotive System IC Fusion Human Resource Research Center.

[2023.12] Single-Inductor Dual-Output Buck Converter (Woojoong Jung) was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2023.12] Kyeongho Eom received the Bronze Paper Award (dual-mode neural stimulation system) from IEEE Seoul Section Student Paper Contest.

[2023.11] Hyun-Su Lee received the ISSCC 2024 Student Travel Grant Award from IEEE Solid-State Circuits Society.

[2023.11] Dual-Output Energy-Resuscitating Resonant Regulating Rectifier (Hyun-Su Lee, ASSCC 2023 paper) was invited to the Special Issue of IEEE Journal of Solid-State Circuits (JSSC).

[2023.11] Stacked-Switched-Capacitor Stimulation System (Minju Park) was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2023.11] Inductor-Charging Switched-Capacitor Stimulation System (Kyeongho Eom) was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2023.11] Recursive DC-DC Buck Converter (Woojoong Jung) was accepted  in IEEE Transactions on Power Electronics (TPEL).

[2023.11] BASIC Lab received two awards from 24th Korea Semiconductor Design Competition (News1, News2, KU News1, KU News2).

    - Presidential Award : Kyeongho Eom (sub-retinal prosthesis system-on-chip)

    - KIPO Commissioner Award : Seung-Beom Ku (microplastic detection RF MEMS sensor system-on-chip)

[2023.10] Four papers were accepted in IEEE International Solid-State Circuits Conference (ISSCC) 2024.

    - SIMO Resonant Regulating Rectifier Generating 3 Outputs in a Half Cycle (Hyun-Su Lee)

    - Duty-Independent Low-Voltage-Stress DC-DC Step-Up Converter (Minsu Kim)

    - Fully Nonlinear Compact 10b OLED Source Driver (Jaewoong Ahn)

    - Mutual/Self-Capacitance Touch Sensing Single-Ended AFE (Junyeol An) (w/ Prof. Yoon-Kyung Choi @ Korea Univ).

[2023.10] Joonghoon Kang received the Future Talent Scholarship from College of Engineering, Korea University.

[2023.09] Yunho Lee (PhD), Joonghoon Kang (MS/PhD), Hyungjin Jung (MS) joined our research group.

[2023.08] Junho Song graduated from BASIC Lab with his MS degree.

[2023.08] Two papers were accepted in IEEE Biomedical Circuits and Systems Conference (BioCAS) 2023.

   - ECRAM-Based Analog Compute-in-Memory Neuromorphic System (Minseong Um) 

   - CMOS Leaky Integrate-and-Fire Neurons (Mannhee Cho)

[2023.08] Low-Stimulus-Scattering Sub-Retinal Prosthesis SoC (Kyeongho Eom) was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2023.08] Stacked-Switched-Capacitor Stimulation System (Minju Park, CICC 2023 paper) was invited to present in the Special Joint Session at IEEE Asian Solid-State Circuits Conference (ASSCC) 2023.

[2023.08] Two papers were  accepted in IEEE Asian Solid-State Circuits Conference (ASSCC) 2023.

    - Fully Nonlinear 10-bit Column Driver with Time-Shared Multi-Gamma-Slope DAC (Seung Hun Choi)

    - Dual-Output Energy-Resuscitating Resonant Regulating Rectifier (Hyun-Su Lee)

[2023.07] Resonant MEMS Sensor for Microplastics Concentration Measurement (Kwon-Hong Lee) was accepted in IEEE Sensors Journal.

[2023.07] On-Chip Trainable Capacitor-Based Synaptic Device (w/ Seoul National Univ.) was accepted in Advanced Science.

[2023.07] Kyeongho Eom received the Chip Design Contest Best Design Award (inductor-charging switched-capacitor stimulation system) from  IC Design Education Center Congress 2023.

[2023.07] Minju Park received the Chip Design Contest Best Poster Award (stacked-switched-capacitor stimulation system) from  IC Design Education Center Congress 2023.

[2023.06] High-Efficiency High-Voltage-Tolerant Buck Converter (Yunho Lee) was accepted  in IEEE Transactions on Power Electronics (TPEL).

[2023.06] Woojoong Jung received the BK21 Global Scholarship from School of Electrical Engineering, Korea University.

[2023.06] Prof. Lee was appointed as an Associate Editor of International Journal of Circuit Theory and Applications (IJCTA).

[2023.05] RF MEMS Sensor Driver/Readout SoC (Seung-Beom Ku) was accepted in IEEE European Solid-State Circuits Conference (ESSCIRC) 2023.

[2023.05] Stacked-Switched-Capacitor Stimulation System (Minju Park, CICC 2023 paper) was invited to the Special Issue of IEEE Journal of Solid-State Circuits (JSSC).

[2023.05] Hyun-Su Lee received the 2023 IEEE CASS Pre-Doctoral Grant from IEEE Circuits and Systems Society (KU News).

[2023.05] Prof. Lee received the Seoktop Teaching Award (Electronic Circuits II in Fall 2022) from Korea University.

[2023.05] Wide-Load-Range High-Slew Capacitor-Less NMOS LDO Regulator (Hyunjun Park) was accepted  in IEEE Journal of Solid-State Circuits (JSSC).

[2023.04] Minju Park received the Outstanding Student Paper Award (stacked-switched-capacitor stimulation system) from IEEE Custom Integrated Circuits Conference (CICC) 2023 (KU News).

[2023.04] Minseong Um received the Chip Design Contest Best Poster Award (analog synapse-based neuromorphic system) from Korean Conference on Semiconductors 2023.

[2023.04] Multi-channel Neural Recording System with Neural Spike Scan (Han-Sol Lee) was accepted in IEEE Transactions on Circuits and Systems I (TCAS-I).

[2023.03] Optimal Tracking Active Rectifier (Jisan Ahn) was accepted in IEEE Symposium on VLSI Technology & Circuits (VLSI) 2023.

[2023.03] Stimulus-Scattering-Free Sub-Retinal Prosthesis SoC (Kyeongho Eom, ISSCC 2023 paper) was invited to the Special Issue of IEEE Journal of Solid-State Circuits (JSSC).

[2023.03] Woojoong Jung visited Electrical and Computer Engineering, University of California San Diego (UCSD), CA, US as a visiting student (hosted by Prof. Hanh-Phuc Le) to collaborate on ocean energy harvester IC (2023.03 - 2023.11).

[2023.03] Hongseok Kim (MS) and Hanjun Cho (MS) joined our research group.

[2023.02] Jisan Ahn and Minju Park graduated from BASIC Lab with their MS degrees.

[2023.01] Stacked-Switched-Capacitor Stimulation System (Minju Park) was accepted in IEEE Custom Integrated Circuits Conference (CICC) 2023.

2022

[2022.12] Fast-Transient Wide-Range LDO Regulator (Hyunjun Park, ASSCC 2022 paper) was invited to the Special Issue of IEEE Journal of Solid-State Circuits (JSSC).

[2022.11] Hyunjun Park received the K-CHIPS Award (Outstanding Researcher) from Consortium of Semiconductor Advanced Research.

[2022.11] Prof. Lee received the Seoktop Teaching Award (Electronic Circuits I in Spring 2022) from Korea University.

[2022.11] Fault-Tolerant Ring Oscillator (Minseong Um) was accepted in IEEE Transactions on Circuits and Systems II (TCAS-II).

[2022.10] Stimulus-Scattering-Free Sub-Retinal Prosthesis SoC (Kyeongho Eom) was accepted in IEEE International Solid-State Circuits Conference (ISSCC) 2023.

[2022.10] Jisan Ahn received the Best Paper Award (active rectifier) from International SoC Design Conference 2022.

[2022.10] BASIC Lab received two awards from 23rd Korea Semiconductor Design Competition (News, KU News).

    - Presidential Award : Hyun-Su Lee (hybrid LSK back telemetry)

    - Minister Award : Woojoong Jung (recursive buck converter)

[2022.09] Hyunjun Park received the Future Talent Scholarship from College of Engineering, Korea University.

[2022.09] Energy-Reuse Wireless Power/Data Transfer System (Minjae Kim) was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2022.09] Digital LDO with Dual-Negative Gate Control (Hyunjun Park) was accepted in IEEE Transactions on Power Electronics (TPEL).

[2022.09] Prof. Lee and Minsu Kim received the Best Patent Award (hybrid buck converter) from Samsung Electronics.

[2022.09] Hyunjun Park (PhD) joined our research group.

[2022.08] Hyunjun Park graduated from BASIC Lab with his MS degree.

[2022.08] Fast-Transient Wide-Range LDO Regulator (Hyunjun Park) was accepted in IEEE Asian Solid-State Circuits Conference (ASSCC) 2022.

[2022.07] Hybrid LSK Back Telemetry System (Hyun-Su Lee) was accepted in IEEE Transactions on Biomedical Circuits and Systems (TBioCAS).

[2022.07] OLED On-Cell Touch Panel Circuit Model (Seung Hun Choi) was accepted in SID Eurodisplay Conference 2022.

[2022.07] Seung-Beom Ku received the Chip Design Contest Best Poster Award (sensor readout system) from  IC Design Education Center Congress 2022.

[2022.05] High-Density Neural Recording System (Han-Sol Lee) was accepted in Biomedical Engineering Letters (BMEL).

[2022.05] Prof. Lee received the Excellent Teaching Award (Electronic Circuits II in Fall 2021) from Korea University.

[2022.04] Seung-Hun Choi received the SID Student Travel Grant for his SID 2022 paper presentation from Display Week.

[2022.03] Jaewoong Ahn (MS) and Junyeol An (MS) joined our research group.

[2022.02] Hyunjun Park received the KU-Future Talent Fellowship from Korea University.

[2022.02] AMOLED Display/Touch Full-Panel Model (Seung Hun Choi) was accepted in Society for Information Display (SID) Symposium 2022.

[2022.02] Resonant Current Mode Wireless Power Receiver (Hyun-Su Lee) was accepted in IEEE Transactions on Power Electronics (TPEL).

[2022.01] Two papers were accepted in IEEE Custom Integrated Circuits Conference (CICC) 2022.

    - Recursive DC-DC Buck Converter (Woojoong Jung)

    - Inductor-Charging Switched-Capacitor Stimulation System (Kyeongho Eom)

[2022.01] Prof. Lee was appointed as an Associate Editor of IEEE Open Journal of Circuits and Systems (OJCAS).

2021

[2021.12] Prof. Lee received the Outstanding Contribution Award from Institute of Korean Electrical and Electronics Engineers.

[2021.11] Hyunjun Park received the Samsung Electronics Semiconductor Scholarship from Korea Semiconductor Industry Association.

[2021.11] Prof. Lee received the Seoktop Teaching Award (Electronic Circuits I in Spring 2021) from Korea University.

[2021.10] Minil Kang received the Siemens Paper Award (neuromorphic system) from International SoC Design Conference 2021.

[2021.10] Minjae Kim received the Chip Design Contest Best Poster Award (WPDT) from International SoC Design Conference 2021.

[2021.09] Prof. Lee received the Young Engineering Educator Award from Korea Society for Engineering Education.

[2021.09] Woojoong Jung received the Best Paper Award (IEEE TPEL 2021 paper) from Samsung Electronics.

[2021.09] Seung-Beom Ku (PhD), Mannhee Cho (PhD), Junho Song (MS) joined our research group.

[2021.08] Jungmin Kim graduated from BASIC Lab with her MS degree.

[2021.08] Hybrid Back Telemetry System (Hyun-Su Lee) was accepted in IEEE Biomedical Circuits and Systems Conference (BioCAS) 2021.

[2021.08] Micro-Bolometer Thermal Imager was accepted in IEEE Transactions on Industrial Electronics (TIE).

[2021.07] Dual-Capacitor S/H SAR ADC (Duckhoon Ro) was accepted in Sensors. 

[2021.05] Prof. Lee received the Seoktop Teaching Award (Electronic Circuits II in Fall 2020) from Korea University.

[2021.03] Prof. Lee was featured as a Rising Star at EIRIC (EIRIC Interview). 

[2021.03] Prof. Lee was promoted to an Associate Professor. 

[2021.03] Hyunsu Lee (PhD), Kwonhong Lee (PhD), Minil Kang (MS/PhD), Minsu Kim (MS/PhD), Minju Park (MS), Jisan Ahn (MS) joined our research group.

[2021.02] Minsu Kim received the Future Talent Scholarship from College of Engineering, Korea University.

[2021.02] Yunho Lee and Hyunsu Lee graduated from BASIC Lab with their MS degrees.

[2021.02] Reconfigurable RF Energy Harvester (Chaehyun Kim) was accepted in IEEE International Symposium on Circuits & Systems (ISCAS) 2021.

[2021.01] Energy-Reuse Wireless Power/Data Transfer System (Minjae Kim) was accepted in IEEE Custom Integrated Circuits Conference (CICC) 2021.

2020

[2020.11] Prof. Lee received the Outstanding Contribution Award from Institute of Electronics and Information Engineers.

[2020.11] Prof. Lee received the Seoktop Teaching Award (Electrical Circuits I in Spring 2020) from Korea University.

[2020.11] Prof. Lee received the Excellent Teaching Award (Electronic Circuits I in Spring 2020) from Korea University.

[2020.10] Seunghun Choi received the Synopsys Paper Award (ECG acquisition system) from International SoC Design Conference 2020.

[2020.09] Hyunjun Park (MS) joined our research group.

[2020.08] Sangil Lee, Minjae Kim, Chaehyun Kim, Yusoo Jung graduated from BASIC Lab with their MS degrees.

[2020.06] Loop-Free Balancing Three-Level Buck Converter (Woojoong Jung) was accepted in IEEE Transactions on Power Electronics (TPEL).

[2020.04] Adaptive Neural Recording System (Han-Sol Lee) was accepted in IEEE Engineering in Medicine and Biology Conference (EMBC) 2020.

[2020.04] Efficient Neural Stimulation System (in Mini Symposia) was accepted in IEEE Engineering in Medicine and Biology Conference (EMBC) 2020.

[2020.04] Prof. Lee received the Excellent Teaching Award (Electronic Circuits II in Fall 2019) from Korea University.

[2020.03] Kyeongho Eom (MS/PhD) joined our research group.

[2020.02] Duckhoon Ro graduated from BASIC Lab with his MS degree.

2019

[2019.12] Radiation-Hardened SAR ADC (Duckhoon Ro) was accepted in Sensors. 

[2019.12] Duckhoon Ro received the Best Poster Award (sensor readout IC) from ISE Semiconductor Engineering Conference 2019.

[2019.12] Sangil Lee received the Best Poster Award (reverse engineering method) from ISE Semiconductor Engineering Conference 2019.

[2019.11] Duckhoon Ro received the Best Paper Award (radiation-hardened SAR ADC ) from IEIE Fall Annual Conference 2019.

[2019.11] Hybrid Dual-Path DC-DC Converter was accepted in IEEE Transactions on Power Electronics (TPEL).

[2019.10] Prof. Lee received the Excellent Teaching Award (Electronic Circuits I in Spring 2019) from Korea University.

[2019.10] Resonant Wireless Power Receiver was accepted in IEEE Journal of Solid-State Circuits (JSSC).

[2019.09] Minsung Um (MS/PhD) and Jungmin Kim (MS) joined our research group.

[2019.08] Kyungsoo Jeong  graduated from BASIC Lab with his MS degree.

[2019.06] Sangil Lee received the Best Student Paper Award (FPGA bitstream analysis) from IEIE Summer Annual Conference 2019.

[2019.04] Prof. Lee received the BK21 Most Improved Achievement Award from School of Electrical Engineering, Korea University.

[2019.03] Seunghun Choi (MS/PhD), Yunho Lee (MS), Hyunsu Lee (MS) joined our research group.

[2019.02] Interpolation Display Driver IC was accepted in IEEE Transactions on Consumer Electronics (TCE).

2018

[2018.12] Radiation-Hardened Sensor IA (Kyungsoo Jeong) was accepted in Electronics.

[2018.11] Sangil Lee received the Best Student Paper Award (FPGA reverse verification ) from IEIE Fall Annual Conference 2018.

[2018.11] State-Based Buck-Boost Converter was accepted in IEEE Transactions on Industrial Electronics (TIE).

[2018.10] FPGA Reverse Engineering Method was accepted in Electronics.

[2018.09] Sangil Lee (MS), Minjae Kim (MS), Chaehyun Kim (MS) joined our research group.

[2018.05] Neural Stimulation Efficiency Analysis was selected as IEEE TBME Featured Article (TBME Link).

[2018.04] Prof. Lee received the Excellent Teaching Award (Electronic Circuits II in Fall 2017) from Korea University.

[2018.03] Duckhoon Ro (MS), Han-Sol Lee (MS/PhD), Woojoong Jung (MS/PhD) joined our research group.

[2018.01] Prof. Lee received the Best Design Award (wireless secure authentication tag w/ MIT) from Asia and South Pacific Design Automation Conference (ASP-DAC) 2018.

2017

[2017.09] Kyungsoo Jeong (MS) joined our research group.

[2017.08] Neural Stimulation Efficiency Analysis (w/ Georgia Tech) was accepted in IEEE Transactions on Biomedical Engineering (TBME).

[2017.08] Deep Neural Network Processing Unit (w/ IBM T. J. Watson) was presented in IEEE International Midwest Symposium on Circuits and Systems (MWSCAS) 2017.

[2017.03] Prof. Lee joined Electrical Engineering, Korea University as an Assistant Professor (KU News, IDEC News).