INTERNATIONAL JOURNALS

2024

1. Sanggyun Kang, Beongkwan Jin, Mookyoung Yoo, Hyeoktae Son, Kyounghwan Kim, Jihyang Wi, Gibae Nam, Namho Bae, Yoomin Park, Junho Jang, and Hyoungho Ko, "Low-Noise and Process Variation-Tolerant Readout Circuit for Electrochemical Sensors", IEEE Sensors Journal,Early access, 1-12, May 2024.

2. Mookyoung Yoo, Sanggyun Kang, Beongkwan Jin, Hyeoktae Son, Kyounghwan Kim, Jihyang Wi, Gibae Nam, Namho Bae, and Hyoungho Ko, "Low Noise Operational Amplifier Using Dual-Path Dual-Chopper Fill-In Technique", IEEE Sensors Journal, vol. 24, pp. 12550-12559, Mar. 2024.

2023

1. Gibae Nam, Gyuri Choi, Mookyoung Yoo, Sanggyun Kang, Byeongkwan Jin, Hyeoktae Son, Kyounghwan Kim, Jihyang Wi,  Seungmin Ahn, and Hyoungho Ko, "Low-Noise Chopper-Stabilized Zero-Drift Amplifier with SAR-Assisted Automatic Offset Calibration Loop", IEEE Access, vol. 11, pp. 137688-137701, Dec. 2023. 

2. Minsik Park, Jonghyun Song, Jaeyong Jeong, Jeong-Taek Lim, Jae-Hyeok Song, Won-Chul Lee, Gapseop Sim, Huijae Cho, Dongeun Yoo, Minho Kang, Hyoungho Ko,  Jooseok Lee, Kyounghoon Yang, Choul-Young Kim,  Youngsu Kim, Woo-Suk Sul, Sanghyeon Kim, and Jongwon Lee, "200-mm Si CMOS Process-Compatible Integrated Passive Device Stack for Millimeter-Wave Monolithic 3-D Integration", IEEE Transactions on Electron Devices, vol. 70, pp. 5257-5264, Oct. 2023.

3. Kyeongsik Nam, Gyuri Choi, Mookyoung Yoo, Sanggyun Kang, Beongkwan Jin, Hyeoktae Son, Kyounghwan Kim, and Hyoungho Ko, "A low-noise and mismatch-tolerant current-mirror-based potentiostat circuit for glucose monitoring", Microelectronics, vol. 132, pp. 1-9, Jan. 2023.

4. Jeongtaek Lim, Hanwoong Choi, Sunkyu Choi, Kijin Kim, Hideok Lee, Hyoungho Ko, Choulyoung Kim, "Bulk CMOS Low Noise Amplifier with Two Stage HPF Noise Matching Structure", IEEE Transactions on Circuits and Systems II: Express Briefs, pp. 1-5, Jan. 2023. [Early access]

2022

1. Kyeongsik Nam, Gyuri Choi, Mookyoung Yoo, Sanggyun Kang, Beongkwan Jin, Hyeoktae Son, Kyounghwan Kim, and Hyoungho Ko, "Low-Noise, Low-Power Readout IC for Two-Electrode ECG Recording Using Common Mode Charge Pump for Robust 20-VPP Common Mode Interference", Applied Sciences, vol. 12, no. 24, pp. 1-15, Dec. 2022.

2. Chulhong Kim, Junghyun Park, Taeyup Kim, Jee seong Kim, Jeongmo Seong, Hyungbo Shim, Hyoungho Ko, and Dongil Cho"Development and evaluation of haltere-mimicking gyroscope for three-axis angular velocity sensing using a haltere-mimicking structure pair", Bioinspiration & Biomimetics, vol. 18, no. 1, pp. 1-13, Nov. 2022.

3. Mookyoung Yoo, Kyeongsik Nam, Gyuri Choi, Sanggyun Kang, Beongkwan Jin, Hyeoktae Son, Kyounghwan Kim, and Hyoungho Ko, "A Single-Bit Incremental Second-Order Delta-Sigma Modulator with Coarse-Fine Input Buffer", Applied Sciences, vol. 12, no. 22, pp. 1-14, Nov. 2022.

4. Gyuri Choi, Kyeongsik Nam, Mookyoung Yoo, Sanggyun Kang, Beongkwan Jin, Kyounghwan Kim, Hyeoktae Son, and Hyoungho Ko, "Low-Noise Potentiostat Readout Circuit with a Chopper Fully Differential Difference Amplifier for Glucose Monitoring", Applied Sciences, vol. 12, no. 22, pp. 1-11, Nov. 2022.

5. Gyuri Choi, Kyeongsik Nam, Mookyoung Yoo, Sanggyun Kang, Beongkwan Jin, Kyounghwan Kim, Hyeoktae Son, and Hyoungho Ko, "Current-Feedback Instrumentation Amplifier Using Dual-Chopper Fill-in Technique", Applied Sciences, vol. 12, no. 20, pp. 1-14, Oct. 2022.

6. Jongwon Lee, Jae Yong Lee, Jonghyun Song, Gapseop Sim, Hyoungho Ko, and Seong Ho Kong, "Implementation of Flip-Chip Microbump Bonding between InP and SiC Substrates for Millimeter-Wave Applications", Micromachines, vol. 13, no. 7, pp. 1-13, Jul. 2022.

7. Mookyoung Yoo, Yongsu Kwon, Hyungseup Kim, Gyuri Choi, Kyeongsik Nam, and Hyoungho Ko, "Low-Noise Resistive Bridge Sensor Analog Front-End Using Chopper-Stabilized Multipath Current Feedback Instrumentation Amplifier and Automatic Offset Cancellation Loop", IEEE Access, vol. 10, pp. 12385-12394, Jan. 2022.

2021

1. Kyeongsik Nam, Gyuri Choi, Hyungseup Kim, Mookyoung Yoo, and Hyoungho Ko, "A Potentiostat Readout Circuit with a Low-noise and Mismatch-tolerant Current Mirror using Chopper Stabilization and Dynamic Element Matching for Electrochemical Sensors," Applied Sciences, vol. 11, no. 18, pp. 1-11, Sept. 2021.

2. Gyuri Choi, Hyunwoo Heo, Donggeun You, Hyungseup Kim, Kyeongsik Nam, Mookyoung Yoo, Sangmin Lee, and Hyoungho Ko, "A Low-power, Low-noise Resistive Bridge Microsensor Readout Circuit with Chopper Stabilized Recycling Folded Cascode Instrumentation Amplifiers," Applied Sciences, vol. 11, no. 17, pp. 1-13, Aug. 2021.

3. Gyuri Choi, Donggeun You, Hyunwoo Heo, Hyungseup Kim, Yongsu Kwon, Kyeongsik Nam, Sangmin Lee, and Hyoungho Ko, "Current-Reused Current Feedback Instrumentation Amplifier for Low Power Leadless Pacemakers," IEEE Access, vol. 9, pp. 113748-113758, Aug. 2021.

4. Taeyoon Eom, Yongsu Kwon, and Hyoungho Ko, "A Compact Weather Sensor Node for Predicting Road Surface Temperature," Sensors and Materials, vol. 33, no. 8, pp. 2763-2771, Aug. 2021.

5. Hyunwoo Heo, Hyungseup Kim, Donggeun You, Yongsu Kwon, Dong-il “Dan” Cho, and Hyoungho Ko, "Chopper-Stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R DAC," Sensors and Materials, vol. 33, no. 8, pp. 2709-2718, Aug. 2021.

6. Huu Lam Phan, Jungho Yi, ,Joonsung Bae, Hyoungho Ko, Sangmin Lee, Dongil Cho, Jong-Mo Seo, and Kyo-in Koo, "Artificial Compound Eye Systems and Their Application: A Review," Micromachines, vol. 12, no. 7, pp. 1-28, Jul. 2021. 

7. Kyeongsik Nam, Hyungseup Kim, Yongsu Kwon, Gyuri Choi, Taeyup Kim, Chulhong Kim, Dongil Dan Cho, Junghoon Lee, and Hyoungho Ko, "A Four-channel Low-noise Readout IC for Air Flow Measurement using Hot Wire Anemometer in 0.18μm CMOS Technology," Sensors, vol. 21, no. 14, pp. 1-16, Jul. 2021. 

8. Hyunwoo Heo, Hyungseup Kim, Donggeun You, Yongsu Kwon, Yil-suk Yang, Junghoon Lee,  and Hyoungho Ko, "PLL-based Nanoresonator Driving IC with Automatic Parasitic Capacitance Cancellation and Automatic Gain Control," Measurement and Control, online published, Jul. 2021. 

9. Hyungseup Kim, Yongsu Kwon, Donggeun You, Hyun-Woong Choi, Seong Hyun Kim, Hyunwoo Heo, Choul-Young Kim, Hi-Deok Lee, and Hyoungho Ko, "Low-Noise Chopper Amplifier Using Lateral PNP Input Stage With Automatic Base Current Cancellation," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 7, pp. 2297-2301, Jul. 2021. 

2020

1. Donggeun You, Hyunwoo Heo, Hyungseup Kim, Yongsu Kwon, Sangmin Lee, and Hyoungho Ko, "Power Line Interference Reduction Technique with Current-Reused Current-Feedback Instrumentation Amplifier for ECG Recording," Applied Sciences, vol. 10, no. 23, pp. 1-12, Nov. 2020. 

2. Hyungseup Kim, Kwonsang Han, Jaesung Kim, Donggeun You, Hyunwoo Heo, Yongsu Kwon, Choul-Young Kim, Hi-Deok Lee, and Hyoungho Ko, "Chopper-Stabilized Low-Noise Multipath Operational Amplifier With Dual Ripple Rejection Loops," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 67, no. 11, pp. 2427-2431, Nov. 2020.

3. Hyungseup Kim, Yongsu Kwon, Donggeun You, Hyun-Woong Choi, Seong Hyun Kim, Hyunwoo Heo, Choul-Young Kim, Hi-Deok Lee, and Hyoungho Ko, "A 5.43 nV/√Hz Chopper Operational Amplifier Using Lateral PNP Input Stage with BJT Current Mirror Base Current Cancellation," Applied Sciences, vol. 10, no. 23, pp. 1-9, Nov. 2020.

4. Hyunwoo Heo, Kwonsang Han, Hyungseup Kim, Jaesung Kim, Donggeun Yoo, Yongsu Kwon, Hyunjoong Lee, and Hyoungho Ko, "Open-loop Spectrum Analyzer Integrated Circuit for Nanoresonator Sensing," Sensors and Materials, vol. 32, no. 6, pp. 2215-2226, Jan. 2020.

5. Kwonsang Han, Hyungseup Kim, Jaesung Kim, Donggeun You, Hyunwoo Heo, Yongsu Kwon, Junghoon Lee, and Hyoungho Ko, "A 24.88 nV/√Hz Wheatstone Bridge Readout Integrated Circuit with Chopper-Stabilized Multipath Operational Amplifier," Applied Science, vol. 10, no. 1, pp. 1-12, Jan. 2020.

6. Donggeun You, Hyungseup Kim, Jaesung Kim, Kwonsang Han, Hyunwoo Heo, Yongsu Kwon, Gyungtae Kim, Woo Suk Sul, Jong Won Lee, Boung Ju Lee, and Hyoungho Ko, "Low-Noise Multimodal Reconfigurable Sensor Readout Circuit for Voltage / Current / Resistive / Capacitive Microsensors," Applied Sciences, vol. 10, no. 1, pp. 1-15, Jan. 2020.

7. Jaesung Kim, Hyungseup Kim, Kwonsang Han, Donggeun You, Hyunwoo Heo, Yongsu Kwon, Dong-il “Dan” Cho, and Hyoungho Ko, "Low-Noise Chopper-Stabilized Multi-Path Operational Amplifier with Nested Miller Compensation for High-Precision Sensors," Applied Sciences, vol. 10, no. 1, pp. 1-12, Jan. 2020.

8. Yongsu Kwon, Hyungseup Kim, Jaesung Kim, Kwonsang Han, Donggeun You, Hyunwoo Heo, Dong-il “Dan” Cho, and Hyoungho Ko, "Fully Differential Chopper-Stabilized Multi-Path Current-Feedback Instrumentation Amplifier with R-2R DAC Offset Adjustment for Resistive Bridge Sensors," Applied Sciences, vol. 10, no. 1, pp. 1-9, Jan. 2020.

2019

1. Jongpal Kim and Hyoungho Ko, "Self-Biased Ultralow Power Current-Reused Neural Amplifier With On-Chip Analog Spike Detections," IEEE Access, vol. 7,  pp. 109792-109803, Aug. 2019.

2. Thuy Van Duong,  T. T. Dang, Jongpal Kim, Kyoungkon Kim, Hyoungho Ko, Cha Hwan Hwang, and Kyo-in Koo, "Twelve-day medium pumping into tubular cell-laden scaffold using a lab-made PDMS connector," European cells & materials, vol. 38, pp. 1-13 Jul. 2019.

3. Hyoungho Ko, Hyungseup Kim, Byeoncheol Lee, Jaesung Kim, Dong-il “Dan” Cho, and Kwonsang Han, "Low-noise Analog Front-end with Chopper-stabilized Multipath Current-feedback Instrumentation Amplifier for Resistive Sensors," Sensors and Materials, vol. 31, no. 5, pp. 1697-1706, May. 2019.

4. Yeongjin Mun, Hyungseup Kim,  Byeoncheol Lee, Kwonsang Han, Jaesung Kim, Ji-Hoon Kim,  Byong-Deok Choi, Dong Kyue Kim, and Hyoungho Ko, "Secure Integrated Circuit with Physical Attack Detection Based on Reconfigurable Top Metal Shield," Journal of Semiconductor Technology and Science, vol. 19, no. 3, pp. 260-269, June. 2019.

5. Jaesung Kim, Kwonsang Han, Hyungseup Kim, Byeoncheol Lee, Sangyoun Shin, and Hyoungho Ko, "4.36 fJ/Conversion-step Ultralow-power 16-bit Successive Approximation Register Capacitance-to-digital Converter in 0.18 µm CMOS Process," Sensors and Materials, vol. 31, no. 5, pp. 1535-1544, May. 2019.

6. Byeoncheol Lee, Hyungseup Kim, Jaesung Kim, Kwonsang Han, Sangyoun Sin, Gyungtae Kim, Woo Suk Sul, Boung Ju Lee, Sangmin Lee, and Hyoungho Ko, "Low-noise 16-bit First-order Delta-sigma Capacitance-to-digital Converter for Capacitive Humidity Sensor" Sensors and Materials, vol. 31, no. 5, pp. 1523-1533, May. 2019.

7. Hyungseup Kim, Byeoncheol Lee, Jaesung Kim, Kwonsang Han, Hyoungho Ko, Dong Kyue Kim, Byong-Deok Choi, and Ji-Hoon Kim, "Secure Circuit with Low-power On-chip Temperature Sensor for Detection of Temperature Fault Injection Attacks" Sensors and Materials, vol. 31, no. 5, pp. 1375-1386, May. 2019.

8. Byeoncheol Lee, Hyungseup Kim, Jaesung Kim, Kwonsang Han, Dong-il “Dan” Cho, and Hyoungho Ko, "A Low-Power 33 pJ/Conversion-Step 12-bit SAR Resistance-to-Digital Converter for Microsensors," Microsystem Technologies, vol. 25, no. 5, pp. 2093-2098, May. 2019

9. Hyungseup Kim, Byeoncheol Lee, Youngwoon Ko, Yeongjin Mun, Yi-Gyeong Kim, Hyunjoong Lee, and Hyoungho Ko, "Low-Phase-Noise Self-Sustaining Amplifier IC with Parallel Capacitance Cancellation for Low-Q Piezoelectric Resonator," Microsystem Technologies, vol. 25, no. 5, pp. 2041-2050, May. 2019.

10. Youngwoon Ko, Hyungseup Kim, Yeongjin Mun, Byeoncheol Lee, Dong-il Dan Cho, and Hyoungho Ko, "164 nW Inverter-based Capacitive Readout IC for Microaccelerometer," Microsystem Technologies, vol. 25, no. 5, pp. 2035-2040, May. 2019.

2018

1. Pranav Ambhorkar, Zongjie Wang, Hyoungho Ko, Sangmin Lee,  Kyo-in Koo, Keekyoung Kim, and Dong-il “Dan” Cho, "Nanowire-Based Biosensors: From Growth to Applications," Micromachines, vol. 9, no. 12, pp. 1-19, Dec. 2018.

2. Seohyeong Jang, Jinwoo Sung, Bobaro Chang, Taeyup Kim, Hyoungho Ko, Kyo-in Koo, and Dong-il Dan Cho, "Characterization of the Piezoresistive Effects of Silicon Nanowires," Sensors, vol. 18, no. 10, pp. 1-9, Oct. 2018.

3. Youngwoon Ko, Hyungseup Kim, Yeongjin Mun, Byeoncheol Lee, Gyungtae Kim, Woo Suk Sul, Boung Ju Lee, and Hyoungho Ko, "31.6 pJ/Conversion-Step Energy-Efficient 16-bit SAR Capacitance-to-Digital Converter in a 0.18-μm CMOS Process," Sensors and Materials, vol. 30, no. 8, pp. 1765-1773, Aug. 2018.

4. Byeoncheol Lee, Youngwoon Ko, Hyungseup Kim, Yeongjin Mun, and Hyoungho Ko, "Low Noise Reconfigurable 12-to-16-bit Delta-Sigma Capacitance-to-Digital Converter with Chopper Stabilization Technique," Sensors and Materials, vol. 30, no. 8, pp. 1671-1679, Aug. 2018.

5. Jongpal Kim, Hankyu Lee, and Hyoungho Ko, “0.6 V, 116 nW Neural Spike Acquisition IC with Self-Biased Instrumentation Amplifier and Analog Spike Extraction,” Sensors, vol. 18, no. 8, pp. 1-13, Jul. 2018.

6. Sangmin Lee, Kyo-in Koo, Hyoungho Ko, Jong-Mo Seo, and Dong-il Dan Cho, "Review of High-resolution Retinal Prosthetic System for Vision Rehabilitation: Our Perspective Based on 18 Years of Research," Sensors and Materials, vol. 30, no. 7, pp. 1393-1406, Jul. 2018.

7. Hyungseup Kim, Byeoncheol Lee, Yeongjin Mun,  Jaesung Kim, Kwonsang Han, Youngtaek Roh, Dongkyu Song, Seounghoon Huh, and Hyoungho Ko, "Reconfigurable Sensor Analog Front-End Using Low-Noise Chopper-Stabilized Delta-Sigma Capacitance-to-Digital Converter," Micromachines, vol. 9, no. 7, pp. 1-16, Jul. 2018.

8. Hyungseup Kim, Youngwoon Ko, Yeongjin Mun, Byeoncheol Lee, Dong Kyue Kim, Byong-Deok Choi, Ji-Hoon Kim, and Hyoungho Ko, "Secure circuit with optical energy harvesting  against unpowered physical attacks," Computers & Electrical Engineering, vol. 70, pp. 74-82, Jun. 2018.

9. Hyungseup Kim, Yunjong Park, Youngwoon Ko, Yeongjin Mun, Sangmin Lee, and Hyoungho Ko, "Biosignal Integrated Circuit with Simultaneous Acquisition of ECG and PPG for Wearable Healthcare Applications," Technology and Healthcare, vol. 26, no. 1, pp. 3-9, Mar. 2018.

2017

1. Yunjong Park, Hyungseup Kim, Youngwoon Ko, Yeongjin Mun, Sangmin Lee, Ji-Hoon Kim, and Hyoungho Ko, "Low Noise CMOS Temperature Sensor with On-chip Calibration," Sensors and Materials, vol. 29, no. 7, pp. 1025-1030, Jul. 2017.

2. Youngwoon Ko, Hyungseup Kim, Yunjong Park, Yeongjin Mun, Dong-il Dan Cho, and Hyoungho Ko, "Low Noise Chopper Stabilized Resistive Readout Integrated Circuit with Ripple Rejection Loop," Sensors and Materials, vol. 29, no. 7, pp. 927-933, Jul. 2017.

3. Yeongjin Mun, Hyungseup Kim, Youngwoon Ko, Yunjong Park, Kyo-in Koo, Dong-il Dan Cho, and Hyoungho Ko, "Capacitive Analog Front-End Circuit with Dual-Mode Automatic Parasitic Cancellation Loop," Microsystem Technologies, vol. 23, no. 2, pp. 515-523, Feb. 2017.

4. Sangmin Lee and Hyoungho Ko, “Fabrication of a MEMS retinal tack and long‑term in-vivo biocompatibility evaluation for retinal prostheses,” Microsystem Technologies, vol. 23, no. 2, pp. 483-489, Feb. 2017.

5. Hyoungho Ko and Sangmin Lee, "Electrical characterization of 2D and 3D microelectrodes for achieving high‑resolution sensing in retinal prostheses with in vitro animal experimental results," Microsystem Technologies, vol. 23, no. 2,  pp. 473-481, Jan. 2017.

2016

1. Jongpal Kim and Hyoungho Ko, “Reconfigurable Multiparameter Biosignal Acquisition SoC for Low Power Wearable Platform,” Sensors, vol. 16, no. 12, pp. 1-13, Sept. 2016.

2. Yunjong Park, Hyungseup Kim, Yeongjin Mun, Youngwoon Ko, Dong-il Dan Cho, and Hyoungho Ko, “Low-Power and Low-Noise Capacitive Sensing IC Using Opamp Sharing Technique,” IEEE Sensors Journal, vol. 16, no. 22, pp. 7839-7840, Nov. 2016.

3. Jongpal Kim and Hyoungho Ko, “A 1.2 V Low-Power CMOS Chopper-Stabilized Analog Front-End IC for Glucose Monitoring,” IEEE Sensors Journal, vol. 16, no. 17, pp. 6517-6518, Sept. 2016.

4. Gyungtae Kim, Taehyun Kim, Hee Yeoun Kim, Yunjong Park, and Hyoungho Ko, “Electro-Thermal Modeling and Experimental Validation of Integrated Microbolometer with ROIC,” Journal of Semiconductor Technology and Science, vol. 16, no. 3, pp. 367-374,  Jun. 2016.

5. Jongpal Kim and Hyoungho Ko, "A Dynamic Instrumentation Amplifier for Low-Power and Low-Noise Biopotential Acquisition," Sensors, vol. 16, no. 354, pp. 1-10, Mar. 2016.

6. Hyoungho Ko, Takhyung Lee, Ji-Hoon Kim, Jong-ae Park, and Jongpal Kim, "Ultra Low Power Bioimpedance IC with Intermediate Frequency Shifting Chopper," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 63, no. 3, pp. 259-263,  Mar. 2016.

2015

1. Jongpal Kim, Jihoon Kim, and Hyoungho Ko, "Low-Power Photoplethysmogram Acquisition Integrated Circuit with Robust Light Interference Compensation," Sensors, vol. 16, no. 46, p. 1-11, Dec. 2015.

2. Haryong Song, Yunjong Park, Hyungseup Kim, Dong-il Dan Cho, and Hyoungho Ko, "Fully Integrated Low-Noise Readout Circuit with Automatic Offset Cancellation Loop for Capacitive Microsensors," Sensors, vol. 15, no. 10, pp. 26009-26017, Oct. 2015.

3. Haryong Song, Yunjong Park, Hyungseup Kim, and Hyoungho Ko, "Fully Integrated Biopotential Acquisition Analog Front-End IC," Sensors, vol. 15, no. 10, pp. 25139-25156, Sept. 2015.

4. Seunghyun Lim, Hyunho Kim, Haryong Song, Dong-il Cho, and Hyoungho Ko, "Analog front-end measuring biopotential signal with effective offset rejection loop," Bio-Medical Materials and Engineering, vol. 26, pp. 935-941, Aug. 2015.

5. Woo-Ram Lee, Hyoungho Ko, Dong-il Dan Cho, Kyo-in Koo, and Jong-Mo Seo, "A Review of Nanotechnology for Highly Sensitive Photodetectors for Vision Sensors of Insect-like Robots," Sensors and Materials, vol. 27, no. 6, pp. 465-474, April 2015.

6. Hyoungho Ko, Haryong Song, Seunghyrm Im, Hyunho Kim, Byungmoon Jang, Hyungbo Shim, and Dong-il Dan Cho, "Bioinspired Piezoresistive Acceleration Sensor Using Artificial Filiform Sensillum Structure," Sensors and Materials, vol. 27, no. 6, pp. 437-445, April 2015.

7. Min-Won Seo, Hyoungho Ko, Dong-il Dan Cho, Jong-Mo Seo, and Kyo-in Koo, "Biomimetic Multiaperture Imaging Systems: A Review," Sensors and Materials, vol. 27, no. 6, pp. 475-486, April 2015.

8. Hyunho Kim, Kangbok Lee, Kyu-Ha Baek, Lee-Mi Do, Changho Seok, Seunghyun Im, Haryong Song, and Hyoungho Ko, "A CMOS Fully Integrated Biopotential Analog Front-End IC for Neural Recording Applications," Information, vol. 18, pp. 1675-1686, May 2015.

9. Haryong Song, Changho Seok, Hyunho Kim, Seunghyun Im, and Hyoungho Ko, "Successive Approximation Register (SAR) ADC with Improved Timing Control Logic for Neural Recording Front-End IC," Information, vol. 18, pp. 1687-1694, May 2015.

10. Seunghyun Lim, Hyunho Kim, Changho Seok, Haryong Song, Sangmin Lee, Sukwon Jung, Hyungjung Yoo, Sungjin Oh, Jaehyun Ahn, Kyoin Koo, Dong-il Dan Cho, and Hyoungho Ko, "A Neural Stimulator with Silicon Nanowire Photodetector for Artificial Retinal Prostheses," Journal of Computational and Theoretical Nanoscience, vol. 12, pp. 769-773, May 2015.

11. Eun-Gyu Lee, Ji-Hoon Kim, Hyoungho Ko, and Choul-Young Kim, "The Anti-Reflection Coating Using the Silicon Nitride and Silicon Monoxide for InP Based Solar Cells," Journal of Computational and Theoretical Nanoscience, vol. 12, pp. 871-874, May 2015.

12. Sungjin Oh, Jae-Hyun Ahn, Sangmin Lee, Hyoungho Ko, Jong Mo Seo, Yong-Sook Goo, and Dong-Il Dan Cho, "Light-Controlled Biphasic Current Stimulator IC Using CMOS Image Sensors for High-Resolution Retinal Prosthesis and In Vitro Experimental Results With rd1 Mouse," IEEE Transactions Biomedical Engineering, on, vol. 62, no. 1, pp. 70-79, Jan. 2015.

 2014

1. Gyungtae Kim, Changho Seok, Taehyun Kim, Jae Hong Park, Heeyeoun Kim, and Hyoungho Ko, "The Micro Pirani Gauge with Low Noise CDS-CTIA for In-Situ Vacuum Monitoring," Journal of Semiconductor Technology and Science, vol. 14, no. 6, pp. 733-740, Dec. 2014.

2. Changho Seok, Hyunho Kim, Seunghyun Im, Haryong Song, Kyomook Lim, Yong-Sook Goo, Kyo-in Koo, Dong-il Cho, and Hyoungho Ko, "A 16-channel Neural Stimulator IC with DAC Sharing Scheme for Artificial Retinal Prostheses," Journal of Semiconductor Technology and Science, vol. 14, pp. 658-665, Aug. 2014.

3. Chan-Soo Lee, Hyoungho Ko and Nam-Soo Kim, "Integrated current-mode DC–DC boost converter with high-performance control circuit," Analog Integrated Circuits and Signal Processing, vol. 80, pp. 105-112, April 2014.

4. Gyungtae Kim, Heeyeoun Kim, Taehyun Kim, Jindeok Seo, Changho Seok, and Hyoungho Ko, "High-uniformity post-CMOS uncooled microbolometer focal plane array integrated with active matrix circuit," Sensors and Actuators A: Physical, vol. 211, pp. 138-144, Jan. 2014.

5. Hyun Kyu Ouh, Jungryoul Choi, Jungwoo Lee, Sangyun Han, Sungwook Kim, Jindeok Seo, and Hyoungho Ko, "Capacitive Readout Circuit for Tri-axes Microaccelerometer with Sub-fF Offset Calibration," Journal of Semiconductor Technology and Science, vol. 14, pp. 83-91, 2014.

2013

1. Sung-Min Moon, Joo-Young Choi, Eun-Gyu Lee, Ji-Hoon Kim, Hyoungho Ko, and Choul-Young Kim, "A High-speed CMOS Comparator with hysteresis characteristics," Journal of Next Generation Information Technology, vol. 4, 2013.

2. Joo Young Choi, Eun-Gyu Lee, Sung-Min Moon, Ji-Hoon Kim, Hyoungho Ko, and Choul-Young Kim, "CMOS Transimpedance Amplifier for Laser Radar Receiver," Journal of Next Generation Information Technology, vol. 4, 2013.

3. Hyunho Kim, Kyomuk Lim, Seunghyun Lim, Changho Seok, Gyungtae Kim, Ji-Hoon Kim, Cheol-Young Kim, and Hyoungho Ko, "A Digitally Trimmable Continuous-Time Capacitive Readout ASIC for MEMS vibratory gyroscope," International Journal of Advancements in Computing Technology, vol. 5, p. 169, 2013.

4. Jae-Hyun Ahn, Sang-Min Lee, Seok-June Hong, Hyung-Jung Yoo, Suk-Won Jung, Sun-Kil Park, Hyoungho Ko, and Dong-il Dan Cho, "Multi-channel stimulator IC using a channel sharing method for retinal prostheses," Journal of biomedical nanotechnology, vol. 9, pp. 621-625, April 2013.

5. Hyoungho Ko, Sang-Min Lee, Jae-Hyun Ahn, Seok-June Hong, Hyung-Jung Yoo, Suk-Won Jung, Sun-Kil Park, and Dong-il Cho, "Current Stimulator IC with Adaptive Supply Regulator for Visual Prostheses," Journal of biomedical nanotechnology, vol. 9, pp. 992-997, June 2013.

6. Jindeok Seo, Kyomuk Lim, Sangmin Lee, Jaehyun Ahn, Seokjune Hong, Hyungjung Yoo, Sukwon Jung, Sunkil Park, Dong-Il Dan Cho, and Hyoungho Ko, "An Arbitrary Waveform 16 Channel Neural Stimulator with Adaptive Supply Regulator in 0.35 um HV CMOS for Visual Prosthesis," Journal of Semiconductor Technology and Science, vol. 13, pp. 79-86, Feb. 2013.

2012-2003

1. Hyoungho Ko, "Highly configurable capacitive interface circuit for tri‐axial MEMS microaccelerometer," International Journal of Electronics, vol. 99, pp. 945-955, Feb. 2012.

2. Hyoungho Ko and Dong-il Dan Cho, "Low noise accelerometer microsystem with highly configurable capacitive interface," Analog Integrated Circuits and Signal Processing, vol. 67, pp. 365-373, June 2011.

3. Sangmin Lee, Hyoungho Ko, Byoungdoo Choi, and Dong-il Dan Cho, "Optimal and robust design method for two-chip out-of-plane microaccelerometers," Sensors, vol. 10, pp. 10524-10544, Nov. 2010.

4. Hyoungho Ko and Dong-il Dan Cho, "Highly programmable temperature compensated readout circuit for capacitive microaccelerometer," Sensors and Actuators A: Physical, vol. 158, pp. 72-83, March 2010.

5. Ahra Lee, Hyoungho Ko, and Gunn Hwang, "Non-ideal behavior of a driving resonator loop in a vibratory capacitive microgyroscope," Microelectronics Journal, vol. 39, pp. 1-6, Jan. 2008.

6. Hyoungho Ko, Sangjun Park, Byoungdoo Choi, Ahra Lee, and Dong-il Dan Cho, "Wafer-level hermetic packaged microaccelerometer with fully differential BiCMOS interface circuit," Sensors and Actuators A: Physical, vol. 137, pp. 25-33, June 2007.

7. Hyoungho Ko, Sangjun Park, Seung-Joon Paik, Byoung-doo Choi, Yonghwa Park, Sangmin Lee, Sungwook Kim, Sang Chul Lee, Ahra Lee, Kwangho Yoo, and Dong-il Dan Cho, "High Performance Microaccelerometer with Wafer-level Hermetic Packaged Sensing Element and Continuous-time BiCMOS Interface Circuit," in Journal of Physics: Conference Series, 2006, p. 1002.

8. Sangjun Park, Donghun Kwak, Hyoungho Ko, Taeyong Song, and Dong-il Cho, "Selective silicon-on-insulator (SOI) implant: a new micromachining method without footing and residual stress," Journal of Micromechanics and Microengineering, vol. 15, p. 1607, July 2005.

9. Jongpal Kim, Sangjun Park, Donghun Kwak, Hyoungho Ko, and Dong-il Dan Cho, "An x-axis single-crystalline silicon microgyroscope fabricated by the extended SBM process," Microelectromechanical Systems, Journal of, vol. 14, pp. 444-455, June 2005.

10. Jongpal Kim, Sangjun Park, Donghun Kwak, Hyoungho Ko, William Carr, James Buss, and Dong-il Dan Cho, "Robust SOI process without footing and its application to ultra high-performance microgyroscopes," Sensors and Actuators A: Physical, vol. 114, pp. 236-243, Sept. 2004.

11. Dongil Cho, Hyoungho Ko, Jongpal Kim, Sangjun Park, Donghun Kwak, Taeyong Song, William Carr, and James Buss, "A Novel Z-Axis Accelerometer With Perfectly-Aligned, Fully-Offset Vertical Combs Fabricated Using the Extended Sacrificial Bulk Micromachining Process," International Journal of Computational Engineering Science, vol. 4, pp. 493-496, Sept. 2003.