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제1회 서강 리치 공학상 시상식 개최- 서강 비전 2030 ‘연구중심 국내대학 TOP3 달성'을 위한 첫걸음 - ▲ 서강 리치 공학 시상식 기념 단체사진(11/30) 제1회 서강 리치 공학상 시상식이 11월 30일 (화) 오전 11시 30분, 교내 곤자가 플라자 VIP룸에서 진행되었다. 공학부는 올해 <서강 비전 2030>을 통해 발표된 '연구중심 국내대학 TOP3 달성' 목표 및 ‘탐구 및 연구중심 학부 교육 선도’라는 핵심전략에 맞추어, 탁월한 공학교육 및 연구를 수행한 교원과 대학원생의 사기 진작 및 포상을 목적으로 올해 처음 본 시상을 신설하였다. 리치 공학상에서 '리치'는 예수회 마태오 리치(Matteo Ricci) 신부를 기리기 위해 건립된 공학부 건물 리치과학관(R관)의 명칭을 따라 명명하였다. 이날 행사에는 송태경 교학부총장, 최정우 공학부 학장을 비롯하여 우수한 연구성과로 수상의 영예를 안게 된 교원과 대학원생 17명이 참석하였다. 시상식은 최정우 학장의 서강 리치 공학상 소개를 시작으로 송태경 교학부총장의 축사 및 상장 수여, 단체 촬영 등의 순서로 진행되었다. 시상 부문은 서강 리치 공학 강의상, 서강 리치 공학 학술상(최우수 연구, 최우수 논문, 최다 인용, 최우수 대학원생), 서강 리치 공학 펠로우, 서강 리치 공학 영펠로우로 나뉘었다. 수상 대상자는 강의 평가·연구업적·논문실적 등을 고려하여 선정되었으며, 전임교원과 대학원생 총 30명이 수상하였다. 송태경 부총장은 “교육과 연구에 매진하여 훌륭한 성과를 보여주신 교수님들께 감사하며, 앞으로도 끊임없는 노력으로 대한민국의 미래 산업을 선도하는 자랑스러운 연구자이자 교육자가 되어주실 것을 당부한다”며 축하의 뜻을 전했다. ▲ (위 왼쪽부터) 전자공학과 강석주 교수, 박형민 교수, (아래 왼쪽부터) 전자공학과 유양모 교수, 최용 교수
2021.12.13
박형민 교수 연구팀, SKT AI Fellowship 3기 우수상 수상 ▲ (왼쪽부터) 이승현, 구혜진, 이상훈 석사과정 전자공학과 석사과정에 재학 중인 구혜진, 이상훈, 이승현(지도교수 박형민) 이 2021 SKT Fellowship 3기 우수상을 수상하였다. SKT AI Fellowship은 대학(원)생들이 실제 기업에서 근무하는 개발자들의 현실적인 피드백과 연구비 지원을 통해 AI 전문가로 성장할 수 있도록 돕는 멘토링 프로그램으로 2021년 AI 펠로우십 3기로 활동한 총 11개 팀 32명의 학생 중 15대 1의 경쟁을 뚫고 지난 5개월 동안 SKT 사내 전문가의 멘토링을 받으며 AI 실무 과제를 직접 해결하였고 이 중 연구결과가 우수한 4개 팀을 선정하였다. 구혜진, 이상훈, 이승현 학생은 Multi-modal 감정 인식 AI 모델 개발 연구를 통해 한국어 텍스트 및 음성 데이터를 활용한 멀티 모달 감정 인식 시스템을 구축하여 데모 시스템을 구현하였고 영문 데이터셋에도 적용하여 멀티 모달 감정 인식 모델의 실효성을 입증하였다. 이번 연구결과를 통해 선행 연구가 다양하게 이루어지지 않았던 한국어 멀티 모달 감정 인식 연구에 새로운 지표를 제안하였다.
2021.12.06
전자공학과 부준호 석박통합과정,JSSC 2021 논문 Invite▲ (왼쪽부터) 전자공학과 안길초 교수, 부준호 석박통합과정 전자공학과 부준호 석박통합과정(지도교수 안길초)이 아날로그 회로설계 분야 가장 권위있는 국제 저널인 IEEE Journal of Solid-State Circuits(2020년 기준 JCR impact factor 5.013, 동(同) 분야 최상위) 2021에 Invite 되었다. IEEE Journal of Solid-State Circuits (JSSC)는 집적 회로의 트랜지스터 수준 설계에 특히 중점을 둔 광범위한 반도체 회로 분야에서 매달 논문을 발행하는 저널이다. 또한, IC 설계와 직접 관련된 회로 모델링, 기술, 시스템 설계, 레이아웃 및 테스트와 같은 주제를 다룬다. 해당 논문의 제목은 "A Single-Trim Switched Capacitor CMOS Bandgap Reference With a 3σ Inaccuracy of +0.02%, −0.12% for Battery-Monitoring Applications"이며, 부준호 학생은 본 논문을 통해 상온에서의 단 한번의 보정만을 이용하고, 추가적인 디지털단의 보상 없이 가장 저렴한 비용으로, 가장 높은 수준의 정확도를 가지는 Bandgap reference를 개발하였다. 그림 1. 부준호 학생이 제안한 구조 그림 2. 부준호 학생이 제안한 회로도
2021.11.22
전자공학과 한주혜 석사, TCAS-II 2021 논문 Invite ▲ (왼쪽부터) 전자공학과 안길초 교수, 한주혜 석사 전자공학과 한주혜 석사(지도교수 안길초)이 아날로그 회로설계 분야 국제 저명 저널인 IEEE Transactions on Circuits and Systems II: Express Briefs(2020년 기준 JCR impact factor 3.292) 2021에 Invite 되었다. IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS II)는 이론, 분석, 설계 및 회로의 실제 구현과 시스템 및 신호 처리에 대한 회로 기술의 응용으로 지정된 분야의 간략한 논문을 발표한다. 기본 과학 이론에서 산업 응용에 이르기까지 전체 스펙트럼이 포함된다. 해당 논문의 제목은 "A 96dB Dynamic Range 2kHz Bandwidth 2nd Order Delta-Sigma Modulator Using Modified Feed-Forward Architecture With Delayed Feedback"이며, 한주혜 석사는 본 논문을 통해 기존 Feed-Forward 구조의 Delta-Sigma ADC를 변형하여 저가의 공정비용과 초저전력으로 16-bit 수준의 고해상도의 센서용 ADC를 개발하였다. 그림 1. 한주혜 석사가 제안한 구조 그림 2. 한주혜 석사가 제안한 회로도 및 타이밍도
2021.11.22
전자공학과 곽용식 박사, A-SSCC 2021 논문 accept ▲ (왼쪽부터) 전자공학과 안길초 교수, 곽용식 박사 전자공학과 곽용식 박사(지도교수 안길초)가 아날로그 회로설계 분야 국제 저명 학회인 IEEE A-SSCC 2021(Asian Solid-State Circuits Conference)에서 발표하였다. IEEE A-SSCC는 반도체 및 반도체 분야에서 가장 최신의 첨단 칩과 회로 설계를 발표하기 위한 국제 포럼이며, 이 학회는 IEEE Solid-State Circuits Society가 지원하며 아시아에서 개최되고 있다. 해당 논문의 제목은 "A 0.9V 0.022mm2 103dB DR Switched-Capacitor Audio Delta-Sigma Modulator Using Input-Referred kT/C Noise Reduction Technique"이며, 곽용식 박사는 본 논문을 통해 input-referred kT/C noise reduction을 사용한 SC audio delta-sigma (ΔΣ) modulator를 세계 최초로 제안 및 개발하였다. ▲곽용식 박사가 제안한 구조본 논문에서 곽 박사는 kT/C noise requirement를 만족하기 위한 캐패시터의 물리적인 한계를 극복하여 초소면적의 audio delta-sigma (ΔΣ) modulator를 구현하였다.
2021.11.12
Lee Jae-sung in Master's Program in Electronic EngineeringReceives AWAD 2021 Young Researcher Award ▲(From left) Professor Choi Woo-young, Department of Electronic Engineering, Lee Jae-sung, Master’s Program Lee Jae-sung (supervisor prof. Choi Woo-young), a student in the master’s program in the Department of Electronic Engineering, received the Young Researcher Award at the Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices (AWAD), held from August 26 to 27, 2021, for his thesis. AWAD, which started in 1993 and celebrated its 28th anniversary this year, is an international conference on cutting-edge semiconductors held alternately in Korea and Japan. The Young Researcher Award is a special award given to excellent thesis presenters that year.The title of Lee Jae-sung’s award-winning paper is “Nonvolatile Content-Addressable Memory using Nanoelectromechanical Memory Switches for Data-Intensive Computation”. In this thesis, for the first time in the world, Lee presented and analyzed a new content-addressable memory (CAM) structure using a nanoelectromechanical (NEM) device in order to overcome the existing CAM’s density and power efficiency limitations. ▲ Schematic diagram of content-addressable memory (CAM) using nanoelectromechanical (NEM) device The proposed CAM is about 67% smaller in area than the existing CAM and can perform high-speed and high-efficiency operations. It is expected to be implemented and applied in the fields of big data and artificial intelligence in the future. Lee Jae-sung said, “This study’s success is all thanks to the encouragement and support of my supervisor professor. Using this award as motivation, I would like to grow further and contribute to the development of Korea’s semiconductor industry.”
2021.09.08
Professor Choi Woo-young, Department of Electronic Engineering,Selected for Targeted Topic Research Support Project in the 2021 SSTF Fund Grant Program Professor Choi Woo-young’s research in the Department of Electronic Engineering was finally selected for the ‘2021 Targeted Topic Research Support Project (semiconductor device and process field) in the Fund Grant Program of the Samsung Science & Technology Foundation (SSTF).’ The SSTF Fund Grant Program is a public service project that Samsung Electronics has been conducting through donations of KRW 1.5 trillion since 2013, with the goal of nurturing and supporting science and technology to lead the future of Korea. Samsung Electronics announced that it would adopt 12 research projects in six fields, including ‘△Advanced AI △Next-generation encryption systems △B(Beyond) 5G&6G △Robotics △Next-generation displays △Semiconductor devices and process,’ totaling KRW 15.21 billion in support funds. Professor Choi will receive a research grant of KRW 1.2 billion for the next three years for his research project ‘Development of a multi-bit content-addressable memory device that uses a single ferroelectric transistor and can evaluate data consistency.’ He plans to secure the source technology in the memory field by developing the world’s best content-addressable memory device. Professor Choi introduced an alternative memory method called ‘content-addressable memory (CAM)’ in order to overcome the critical situation for existing memory dependent on random-access memory (RAM), such as SRAM, DRAM, and flash memory, which are not suitable for the high-speed and large-capacity data-retrieval required for big data and artificial intelligence fields, both of which have recently been in the spotlight. ▲ Diagram comparing operation methods between RAM (random-access memory), the mainstream of existing memory technology, and CAM (Content-Addressable Memory), to be developed in this study Whereas the conventional random-access memory (RAM) was a sequential memory operation that relied on visible addresses, content-addressable memory (CAM) compares all data stored in memory with the data to be retrieved into parallel processing based on the content. As the study proceeds, it is expected to present an optimal solution to the current technological situation where the data capacity increases and the demand for high-speed search operations also needs to be increased.Professor Choi said, “I am delighted to receive positive evaluations for the proposals for challenging tasks that go beyond the limits of existing semiconductors and the presentation of concrete measures. I would like to continue to draw outstanding research results that can improve Korea’s semiconductor status and cultivate excellent human resources.”
2021.08.12
The 1st Prize in Naver CLOVA AI RUSH Contest ▲ (From left) Professor Kang Suk-ju from the Department of Electronic Engineering,Kong Dae-hyeon, Master’s Course Student Kong Dae-hyeon, a student in the master’s program (under advisor Professor Kang Suk-ju) and currently enrolled in the Department of Electronic Engineering, achieved excellent results in the CLOVA AI RUSH contest hosted by Naver. The contest was held in a non-face-to-face format over the course of 46 days from May 22 to July 1, 2021, with challenges related to various data and questions provided by Naver. Kong was awarded 1st place in the 1st round, ‘Shopping AI Development – Shopping Category Classification,’ and was also honored with 1st place in the final 2nd round, ‘Shopping AI Development – Shopping Catalog Clustering.’ Models that achieved excellent results in this project are given the opportunity to apply to Naver services (Naver Map, Blog, Naver Shopping, Smart Editor, and music-recommendation service) and are given the chance to provide their items to tens of millions of Naver users. In addition to a prize of KRW 15 million, as first-prize winner, Kong will be given the opportunity to complete a 2021 summer internship at Naver and recruitment privileges for exempting documents and coding tests when applying for Naver recruitment.When asked about the experience, Kong said, “It was very rewarding to be able to contribute to the price-comparison function on Naver Shopping, which is a service I often use. It was great to build up my data-processing and development skills in a short period of time by directly dealing with real-world data that is usually difficult to access for common users. I would like to thank the professor and lab members for their generous support and consideration, which allowed me to participate in the competition.”
2021.07.26
Sogang Included in Preliminary Selectionfor Phase Four of Brain Korea 21 Project (BK21) The Ministry of Education and National Research Foundation of Korea (NRF) have announced the preliminary selection results for Phase Four of the Brain Korea 21 project (BK 21), which supports universities with research funds and other aid for stabilized academic research and technological development in new industries. Sogang University has been honored with the selection of three Educational Research Centers and five Educational Research Teams, as follows: Educational Research Centers:△ Fostering Talents in Future Brain-copied Intelligent Semiconductor Innovation (7 professors from Department of Electronic Engineering)△ Mobile Blockchain-based Intelligent Healthcare Solution for Areas of Disasters/Emergencies (7 professors from Department of Electronic Engineering)△ Fostering World Highest-standard Practical Big Data Convergence (12 professors from Department of Computer Science and Engineering)Educational Research Teams:△ Roots-based Politics (6 professors from Department of Political Science)△ Anti-stress Bio-molecular Function (7 professors from Department of Life Sciences)△ Molecular Control-based Chemical and Biochemical Engineering Process (7 professors from Department of Chemical and Biomolecular Engineering)△ Fostering Professionals in K-MENA (4 professors from Department of History)△ Smart Mechanical Technology for Social Value Creation (7 professors from Department of Mechanical Engineering) Accordingly, Sogang will be provided research funds for seven years (beginning in September 2020) in three stages - totaling approximately 80% more than the funds received for Phase Three of BK21 (2013 to 2020) - indicating a more stabilized fostering of graduate and doctoral researchers to lead the Fourth Industrial Revolution. President Park Jong Gou noted, "This preliminary selection for Phase Four of BK21 is the result of Sogang members' efforts and cooperation," and expressed his hope that this will serve as momentum for more students to concentrate on research and grow into convergent human resources that will be much needed for the future society."
2020.08.27
Winner of the Excellent Design and Excellent Poster Awardsat the 27th Korean Conference on Semiconductors Professor Choi Woo Young's research team won the Excellent Design Award and the Excellent Poster Award at the 27th Korean Conference on Semiconductors (KCS) held in Gangwon-do in February. This conference, which is a major academic conference in the field of semiconductors, was arranged to discuss semiconductor technology innovation that will lead the next generation of major ICT convergence technologies and directions for the future. Kwon Hyug Su, who received the excellent design award, is in doctoral program in the Department of Electronic Engineering (Advisor: Prof. Choi Woo Young). He was the first in the world to experimentally implement the single tile operation of CMOS-NEM reconfigurable logic device/circuit using a nanoelectromechanical (NEM) device. The CMOS-NEM reconfigurable logic device/circuit presented through this study was implemented based on 65 nm process technology, and the NEM device responsible for signal change was implemented in the post-process wiring section. This device/circuit is expected to have a chip density 4.6 times higher, an operating frequency 2.3 times higher, and a power consumption 9.3 times lower than a conventional CMOS device-only circuit. With higher speed and lower power consumption equivalent to the ASIC (Application Specific Integrated Circuit) level, it is also expected to make a great contribution to implementing a field-programmable gate array (FPGA) with microprocessor-level operational flexibility. This technology, implemented for the first time in the world, has the characteristics of a source technology that can change the paradigm of semiconductor technology, not just the field of reconfigurable logic device/circuit technology. In the short term, it is possible to expand into the field of ultra-low-power memory-in-logic and analog computing, and ultimately, it is expected to enable the emergence of ultra-low-power three-dimensional neuro-simulation semiconductor chips. ▶Thesis Title: Monolithic three-dimensional (M3D) CMOS- Nanoelectromechanical (NEM) Single-tile Reconfigurable Logic (RL)▶Authors: Kwon Hyug Su (First author), Ph.D. candidate, and Professor Choi Woo Young (Second author) In the same competition, Kang Min Hee, a master's student in Electronic Engineering (Advisor: Prof. Choi Woo Young) was awarded the Outstanding Poster Award in recognition of its contribution to improving the reliability of NEM by alleviating the stress of NEM through selection line optimization. The NEM of the selection line optimization structure presented this time was verified for its efficacy through the finite element method, and showed that the stress concentrated on the anchor part of the NEM was reduced as the selection line was reduced. In addition, the optimal selection line length was demonstrated, showing the change in NEM pull-in voltage that occurs while reducing the selection line. The NEM of the selection line optimization proposed by the research team is expected to reduce stress by over 40% compared to the existing structure. Through this, it is expected that the proposed structure will greatly contribute to improving the reliability of CMOS-NEM hybrid circuits. ▶Thesis Title: Selection Line Optimization of Nanoelectromechanical (NEM) Memory Switches for Stress Relief▶Authors: Kang Min Hee, Master's candidate (First author), Professor Choi Woo Young (second author)
2020.04.21