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Woojun Choi, Ph.D.

Faculty · SICSL

Woojun Choi, Ph.D.

Principal Investigator

IEEE Member

Assistant Professor, Department of Integrated Display Engineering

Prof. Woojun Choi leads the Smart Interface IC and Systems Laboratory at Yonsei University. His research focuses on high-performance analog and mixed-signal CMOS circuits for display IC systems, energy-efficient sensor interfaces, data converters, miniaturized sensor platforms, and intelligent biomedical systems.

Contact Information

Education

  • Ph.D. in Electrical and Electronic Engineering Yonsei University · Seoul, Korea (2015.03–2021.02)
  • B.S. in Electrical and Electronic Engineering Yonsei University · Seoul, Korea (2011.03–2015.02)

Experience

  • Assistant Professor, Department of Integrated Display Engineering, Yonsei University, Korea (2025.03–Present)
  • Assistant Professor, Department of Electronic Engineering, Kyung Hee University, Korea (2023.09–2025.02)
  • Postdoctoral Researcher, Department of Information Technology and Electrical Engineering, ETH Zürich, Switzerland (2021.08–2023.08)
  • Postdoctoral Researcher, Department of Electrical and Electronic Engineering, Yonsei University, Korea (2021.03–2021.07)
  • Visiting Scholar, Department of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, The Netherlands (2018.05–2018.08)

Honors and Awards

  • Postdoctoral Fellowship, National Research Foundation of Korea (NRF) (2022.09–2023.08)
  • International Solid-State Circuits Conference (ISSCC) 2021 Takuo Sugano Award for Outstanding Far-East Paper, IEEE ISSCC (2021.02) The Best ISSCC Paper Award for the Far-East Region
  • Solid-State Circuits Society (SSCS) Predoctoral Achievement Award, IEEE SSCS (2019.02)
  • Best Patent Award (Silver Prize), SK Hynix (2017)
  • Global Ph.D. Fellowship, NRF (2016.03–2021.02)

Research output

Selected publications

View all publications
  1. 2026 Major A-SSCC

    A 0.04 mm² BJT-Based Capacitively-Biased Diode Temperature Sensor with Filter-Assisted Active Noise Cancellation

    IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2026

  2. 2026 Major A-SSCC

    A 200-fps SPAD dToF LiDAR Sensor with In-Pixel Phase-Domain ΔΣ TDC and Dual-GRO Extended Counting

    IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2026

  3. 2026 Top-tier VLSI

    A 256-Channel, 32-Interconnect, 1.25-NEF, In Vitro and In Vivo Neural Interface with Auto-Calibrated Input Impedance Boosting and On-Chip Spike Detection for Flexible Capacitive Microelectrode Array

    IEEE Symposium on VLSI Technology and Circuits (VLSI), June 2026

  4. 2026 Major CICC

    A 1.92µm-Pitch Current-Controlled Oscillator ADC Array Featuring Charge-Injection-Based Two-Stage Conversion for In-Memory Computing

    IEEE Custom Integrated Circuits Conference (CICC), April 2026

  5. 2025 OJ-SSCS

    Recent Advances in Energy-Efficient and Temperature-Resilient Sensor Interfaces

    IEEE Open Journal of the Solid-State Circuits Society, vol. 5, pp. 456–469, Nov. 2025

  6. 2024 bioRxiv

    Code Multiplexed Nanocapacitor Arrays for Scalable Neural Recordings

    bioRxiv, Feb. 2024

  7. 2024 ICEIC

    A Review on Integrated RC Frequency References for IoT Applications

    IEEE International Conference on Electronics, Information, and Communication (ICEIC), Jan. 2024

  8. 2023 Springer

    RC Frequency References Based on Dual-RC FLLs

    Biomedical Electronics, Noise Shaping ADCs, and Frequency References, Springer, Aug. 2023