A Novel Z-Axis Accelerometer With Perfectly-Aligned, Fully-Offset Vertical Combs Fabricated Using The Extended Sacrificial Bulk Micromachining Process. - Dongil Cho; Hyoungho Ko; Jongpal Kim; Sangjun Park 001; Donghun Kwak; Taeyong Song; William Carr; James Bus (Int. J. Comput. Eng. Sci., 2003)

Extremely Sharp {111}-Bound, Single-Crystalline Silicon Nano Tips. - Jaehong Park; Kidong Park; Seung Joon Paik; Kyo-In Koo; Byoung-Doo Choi; Jongpal Kim; Sangjun Park 001; Il-Woo Jung; Hyoungho Ko; Dong-Il Cho (Int. J. Comput. Eng. Sci., 2003)

A 37 ppm/°C Temperature Compensated CMOS ASIC with ±16 V Supply Protection for Capacitive Microaccelerometers. - Hyoungho Ko; Ahra Lee; Taedong Ahn; Seung Joon Paik; Byoung-Doo Choi; Dong-Il Cho (CICC, 2007)

Non-ideal behavior of a driving resonator loop in a vibratory capacitive microgyroscope. - Ahra Lee; Hyoungho Ko; Dong-Il Cho; Gunn Hwang (Microelectron. J., 2008)

Optimal and Robust Design Method for Two-Chip Out-of-Plane Microaccelerometers. - Sangmin Lee 002; Hyoungho Ko; Byoung-Doo Choi; Dong-Il Dan Cho (Sensors, 2010)

Integrated 0.35 µm BiCMOS DC-DC Boost Converter. - Chan-Soo Lee; Nam-Soo Kim; Hyoungho Ko (EMS, 2011)

A 16-channel neural stimulator with DAC sharing scheme for visual prostheses. - Kyomuk Lim; Jindeok Seo; Changho Seok; Hyoungho Ko (ISCAS, 2013)

A fully integrated electroencephalogram (EEG) analog front-end IC with capacitive input impedance boosting loop. - Seunghyun Lim; Changho Seok; Hyunho Kim; Haryong Song; Hyoungho Ko (CICC, 2014)

Pulse count modulation based biphasic current stimulator for retinal prosthesis and in vitro experiment using rd1 mouse. - Sungjin Oh; Jae Hyun Ahn; Jong Yoon Shin; Hyoungho Ko; Yong-Sook Goo; Dong-Il Dan Cho (EMBC, 2014)

A versatile biopotential acquisition analog front end IC with effective DC offset and ripple rejection. - Seunghyun Im; Changho Seok; Hyunho Kim; Haryong Song; Hyoungho Ko; Dong-Il Dan Cho (ISIC, 2014)

Ambient light cancellation in photoplethysmogram application using alternating sampling and charge redistribution technique. - Jongpal Kim; Takhyung Lee; Jihoon Kim; Hyoungho Ko (EMBC, 2015)

Fully Integrated Low-Noise Readout Circuit with Automatic Offset Cancellation Loop for Capacitive Microsensors. - Haryong Song; Yunjong Park; Hyungseup Kim; Dong-Il Dan Cho; Hyoungho Ko (Sensors, 2015)

Fully Integrated Biopotential Acquisition Analog Front-End IC. - Haryong Song; Yunjong Park; Hyungseup Kim; Hyoungho Ko (Sensors, 2015)

Light-Controlled Biphasic Current Stimulator IC Using CMOS Image Sensors for High-Resolution Retinal Prosthesis and In Vitro Experimental Results With rd1 Mouse. - Sungjin Oh; Jae Hyun Ahn; Sangmin Lee 002; Hyoungho Ko; Jong-Mo Seo; Yong-Sook Goo; Dong-Il Dan Cho (IEEE Trans. Biomed. Eng., 2015)

A Dynamic Instrumentation Amplifier for Low-Power and Low-Noise Biopotential Acquisition. - Jongpal Kim; Hyoungho Ko (Sensors, 2016)

Reconfigurable Multiparameter Biosignal Acquisition SoC for Low Power Wearable Platform. - Jongpal Kim; Hyoungho Ko (Sensors, 2016)

Low-Power Photoplethysmogram Acquisition Integrated Circuit with Robust Light Interference Compensation. - Jongpal Kim; Jihoon Kim 003; Hyoungho Ko (Sensors, 2016)

Ultralow-Power Bioimpedance IC With Intermediate Frequency Shifting Chopper. - Hyoungho Ko; Takhyung Lee; Jihoon Kim; Jong-ae Park; Jongpal Kim (IEEE Trans. Circuits Syst. II Express Briefs, 2016)

Secure circuit with optical energy harvesting against unpowered physical attacks. - Hyungseup Kim; Youngwoon Ko; Yeongjin Mun; Byeoncheol Lee; Dong Kyue Kim; Byong-Deok Choi; Ji-Hoon Kim 003; Hyoungho Ko (Comput. Electr. Eng., 2018)

Characterization of the Piezoresistive Effects of Silicon Nanowires. - Seohyeong Jang; Jin-Woo Sung; Bobaro Chang; Taeyup Kim; Hyoungho Ko; Kyo-In Koo; Dong-Il Dan Cho (Sensors, 2018)

0.6 V, 116 nW Neural Spike Acquisition IC with Self-Biased Instrumentation Amplifier and Analog Spike Extraction. - Jongpal Kim; Hankyu Lee; Hyoungho Ko (Sensors, 2018)

Self-Biased Ultralow Power Current-Reused Neural Amplifier With On-Chip Analog Spike Detections. - Jongpal Kim; Hyoungho Ko (IEEE Access, 2019)

Phase-Locked Loop-Based Nanoresonator Integrated Circuit for Motional Resistance Sensing with Automatic Gain Control. - Hyunwoo Heo; Hyungseup Kim; Donggeun You; Yongsu Kwon; Hyoungho Ko; Yil-Suk Yang (ISOCC, 2020)

A 28.4 nV/√Hz Chopper Stabilized Current Feedback Instrumentation Amplifier with Auto Offset Calibration DAC for Resistive Bridge Sensor. - Yongsu Kwon; Hyungseup Kim; Donggeun You; Hyunwoo Heo; Hyoungho Ko; Sangmin Lee 002 (ISOCC, 2020)

A Current Feedback Instrumentation Amplifier with Current Reuse and Power Line Interference Mitigation Technique for ECG Recording. - Donggeun You; Hyunwoo Heo; Hyungseup Kim; Yongsu Kwon; Hyoungho Ko; Sangmin Lee 002 (ISOCC, 2020)

Chopper-Stabilized Low-Noise Multipath Operational Amplifier With Dual Ripple Rejection Loops. - Hyungseup Kim; Kwonsang Han; Jaesung Kim; Donggeun You; Hyunwoo Heo; Yongsu Kwon; Choul-Young Kim; Hi-Deok Lee; Hyoungho Ko (IEEE Trans. Circuits Syst., 2020)

Secure IC with Countermeasure to Unpowered Physical Attack using On-chip Photodiode and Charge Pump. - Hyunwoo Heo; Donggeun You; Hyungseup Kim; Yongsu Kwon; Hyoungho Ko; Dong Kyue Kim; Byong-Deok Choi; Ji-Hoon Kim 003 (ICEIC, 2021)

A BJT-Based CMOS Body Temperature Sensor Analog Front-End with Dynamic Element Matching. - Yongsu Kwon; Hyungseup Kim; Donggeun You; Hyunwoo Heo; Hyoungho Ko; Sangmin Lee 002 (ICEIC, 2021)

Current-Reused Current Feedback Instrumentation Amplifier for Low Power Leadless Pacemakers. - Gyuri Choi; Donggeun You; Hyunwoo Heo; Hyungseup Kim; Yongsu Kwon; Kyeongsik Nam; Sangmin Lee 002; Hyoungho Ko (IEEE Access, 2021)

A Four-Channel Low-Noise Readout IC for Air Flow Measurement Using Hot Wire Anemometer in 0.18 μm CMOS Technology. - Kyeongsik Nam; Hyungseup Kim; Yongsu Kwon; Gyuri Choi; Taeyup Kim; Chulhong Kim; Dongil Cho; Junghoon Lee; Hyoungho Ko (Sensors, 2021)

Low-Noise Chopper Amplifier Using Lateral PNP Input Stage With Automatic Base Current Cancellation. - Hyungseup Kim; Yongsu Kwon; Donggeun You; Hyun-Woong Choi; Seong Hyun Kim; Hyunwoo Heo; Choul-Young Kim; Hi-Deok Lee; Hyoungho Ko (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Low-Noise Resistive Bridge Sensor Analog Front-End Using Chopper-Stabilized Multipath Current Feedback Instrumentation Amplifier and Automatic Offset Cancellation Loop. - Mookyoung Yoo; Yongsu Kwon; Hyungseup Kim; Gyuri Choi; Kyeongsik Nam; Hyoungho Ko (IEEE Access, 2022)

Low-Noise Chopper-Stabilized Zero-Drift Amplifier With SAR-Assisted Automatic Offset Calibration Loop. - Gibae Nam; Gyuri Choi; Mookyoung Yoo; Sanggyun Kang; Byeongkwan Jin; Hyeoktae Son; Kyounghwan Kim; Jihyang Wi; Seungmin Ahn; Hyoungho Ko (IEEE Access, 2023)

A low-noise and mismatch-tolerant current-mirror-based potentiostat circuit for glucose monitoring. - Kyeongsik Nam; Gyuri Choi; Mookyoung Yoo; Sanggyun Kang; Byeongkwan Jin; Hyeoktae Son; Kyounghwan Kim; Hyoungho Ko (Microelectron. J., 2023)

Bulk CMOS Low Noise Amplifier With Two Stage HPF Noise Matching Structure. - Jeong-Taek Lim; Han-Woong Choi; Sun-Kyu Choi; Ki-Jin Kim; Hi-Deok Lee; Hyoungho Ko; Choul-Young Kim (IEEE Trans. Circuits Syst. II Express Briefs, 2023)

Piezoresistance of Silicon Nanowires for Sensing Applications: Optimizing Nanowire Parameters From Electrical and Mechanical Perspectives. - Taeyup Kim; Minjae Lee 001; Hyoungho Ko; Dong-Il Cho (IEEE Access, 2024)

A low-noise multipath operational amplifier with G-shared ping-pong and ripple averaging techniques. - Jihyang Wi; Gyuri Choi; Mookyoung Yoo; Sanggyun Kang; Byeongkwan Jin; Hyeoktae Son; Kyounghwan Kim; Gibae Nam; Hyoungho Ko (Microelectron. J., 2024)

An Absolute Capacitive Encoder Using Sample-and-Hold Demodulator to Reduce Interference Between Sine and Cosine Channels. - Junghyun Park; Hyoungho Ko; Taeyup Kim; Sanghoon Lee; Jong-Mo Seo; Dong-Il Cho (IEEE Access, 2025)

Zero-Drift Fully Differential Amplifier With Ping-Pong Auto-Zero Stabilization and Digitally-Assisted Coarse Automatic Offset Calibration. - Mookyoung Yoo; Hyeoktae Son; Kyounghwan Kim; Jihyang Wi; Gibae Nam; Minhyoek Son; Manhyoek Choi; Hyoungho Ko (IEEE Trans. Circuits Syst. II Express Briefs, 2025)

DRAM Physically Unclonable Function (PUF) Using Dual Word-Line Activated Twin-Cells. - Mookyoung Yoo; Seon Bhin Kim; Hyeoktae Son; Kyounghwan Kim; Jihyang Wi; Gibae Nam; Minhyoek Son; Manhyoek Choi; Inju Yu; Dong Kyue Kim; Hyoungho Ko (IEEE Trans. Circuits Syst. II Express Briefs, 2025)