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Dr. Chang-Hyeon Ji
Professor
Department of Electronic and Electrical Engineering (Primary)
Department of Intelligent Semiconductor Engineering
Graduate Study in Smart Factory
College of Engineering, Ewha Womans University, Seoul, Korea
Contact Information
Department of Electronic and Electrical Engineering, Ewha Womans University
52 Ewayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
Office: Room #531, Asan Engineering Building
Tel: +82-2-3277-3895
E-mail: cji@ewha.ac.kr
Educations
Seoul National University, Seoul, Korea
- Ph.D. in Electrical Engineering and Computer Science, Aug. 2001
- Thesis: A Study on Electromagnetic Micromirror with Single Crystal Silicon Mirror Plate and Aluminum Spring
- Advisor: Prof. Yong-Kweon Kim
- Research Topics: Microphotonic Systems for Optical Switching, MEMS Actuators Micromirrors, Electrostatic and Electromagnetic Actuation, Metal Electroplating Surface and Bulk Micromatchining
Seoul National University, Seoul, Korea
- M.S. in Electrical Enginerring, Feb. 1997
- Thesis: Design and Fabrication of Micro Mirror with Pin and Staples
- Advisor: Prof. Yong-Kweon Kim
- Research Topics: Microphotonic Systems for Projection Display Systems Mems Actuators, Micromirrors, Surface Micromachining
Seoul National University, Seoul, Korea
- B.S. in Electrical Engineering, Feb. 1995
Research and Administrative Experience
Ewha Womans University, Seoul, Korea
- 전자전기공학전공/지능형반도체공학전공 Ewha Global Excellence Program (EGEP) 사업단장, Dec. 2025 ~ Present
- 국가과학기술자문회의 전문위원, Jan. 2023 ~ Dec. 2024
- 교수평의원, Mar. 2018 ~ Feb. 2020
- 프라임사업관리지원실장, Feb. 2017 ~ Jun. 2019
- Department Head, Feb. 2015 ~ Jan. 2017
- Professor in Electronic and Electrical Engineering, Mar. 2017 ~ present
- Associate Professor in Electronics Engineering, Mar. 2012 ~ Feb. 2017
- Assistant Professor in Electronics Engineering, Mar. 2011 ~ Feb. 2012
Georgia Institute of Technology, Atlanta, GA, U.S.A.
- Postdoctoral Fellow in Electrical and Computer Engineering, Jul. 2006 ~ Jan. 2011
- Advisor: Prof. Mark G. Allen
- Research Topics: Micro power generation and energy scavenging, Microfabricated battery Passive component integration and through-wafer interconnect for power electronics Microfabricated components for wireless power transfer, BioMEMS
LG Electronics Institute of Technology, Seoul, Korea
- Senior and Chief Research Engineer, Oct. 2001 ~ Jul. 2006
- Microsystems Group, Devices and Materials Laboratory
- Research Topics: MEMS optical switches and variable optical attenuator(VOA)s 2D scannig micromirrors for raster scanning-type laser display system MEMS packaging, Optical components for camera modules
Professional Activities
Awards and Honors
1. 2024학년도 공과대학 연구비 우수교원 (동탑), 2024
2. 2019학년도 연구실적 우수 교수, 이화여자대학교, 2019
3. 제22회 과학기술 우수논문상, 한국과학기술단체총연합회, 2012
4. Paper Contest Award (2nd place), The 8th Korean MEMS Conference, Jeju, Korea, 2006
5. Outstanding Research Engineer Award - LG Electronics Institute of Technology, 2001
6. Industry-University Cooperative Scholarship - LG Electronics, 2000 ~ 2001
Lectures and Invited Talks
1. "Micro/Nanofabrication Technologies for Power Generation and Integrated Power Electronics," Dankook University, Gyounggi-do, Korea, Oct., 2010
2. "Micro Power Generation and Microfabrication Technologies for Integrated Power Electronics," Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland, Apr., 2010.
3. "Power MEMS," Kwangwoon University, Seoul, Korea, Aug., 2009.
4. "Power MEMS," Korea Electronics Technology Institute, Gyounggi-do, Korea, Jan., 2009.
5. "Power MEMS," LG Electronics Institute of Technology, Seoul, Korea, Dec., 2008.
6. "Power MEMS," Electronics and Telecommunications Research Institute, Daejon, Korea, Dec., 2007
7. "Challenges and Opportunities in Optical MEMS," Research Center for MEMS Space Telescope Seminar, Ewha Womans University, Seoul, Korea, Jan., 2007
8. "Challenges and Opportunities in Optical MEMS (From Optical Networking to Laser Display System)," Brain Korea 21 Seminar, Seoul National University, Seoul, Korea, Mar., 2006.
9. "Micro/Nano-Electro-Mechanical Systems for Electronics Market," 4th Learning Center Core Technology Seminar, LG Electronics, Gyounggi-do, Korea, Nov., 2005.
10. "MEMS for Optical Network," Photonics Education Learning Center, Seoul, Korea, July, 2003.
Academic Affiliations and Services
- 대한전기학회 전기물성·응용부문회 (C부문회) 편집이사 (2012, 2013)
Member
- Institute of Electrical and Electronics Engineers (IEEE, member since 2007)
Journal Reviewer
- Institute of Electrical and Electronics Engineers (IEEE)
IEEE/ASME Journal of Microelectromechanical Systems
- Institute of Physics (IOP)
Journal of Micromechanics and Microengineering
Semiconductor Science and Technology
Smart Materials and Structures
- Society of Photo-optical Instrumentation Engineers (SPIE)
Journal of Micro/Nanolithography, MEMS, and MOEMS
- Elsevier Science
Sensors and Actuators A
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