Acting President and Deputy Prime Minister cum Minister of Education Lee Joo-ho is presenting the Geunjeong Medal to Professor Saewoong Bahk during the 44th Teacher's Day Commemoration Ceremony held at the FKI Tower in Yeouido, Seoul, on May 15, 2025. [Presidential Office Press] Source: https://n.news.naver.com/article/001/0015391097?sid=102 Translated by: Dohyung Kim, English Editor of the Department of Electrical and Computer Engineering, kimdohyung@snu.ac.kr...

Professor Jaejoon Kim, Department of Electrical and Computer Engineering, Seoul National University [Provided by the Ministry of Science and ICT. Redistribution and database storage prohibited.] (Seoul = Yonhap News) Reporter Cho Seung-han – The Ministry of Science and ICT and the National Research Foundation of Korea announced that Professor Jaejoon Kim of the Department of Electrical and Computer Engineering at Seoul National University has been selected as the May recipient of the Scientist of the Month Award. Professor Kim was recognized for his contributions in developing lightweight AI models and designing semiconductor accelerators that efficiently compute these models, thereby proposing AI-based technologies that can operate with low power consumption across various environments. Efficiency optimization of AI models—gaining attention recently due to power consumption concerns—can be divided into two approaches: software-centric model compression and hardware-centric semiconductor accelerator technologies. However, since these approaches have typically been developed independently, applying compressed models in practice has often resulted in reduced computational speed. Professor Kim conducted integrated research to develop lightweight AI techniques that take hardware characteristics into account, while simultaneously designing a dedicated semiconductor chip to efficiently support them. This technology supports AI lightweight models with “variable bit precision,” which adjusts the number of bits used in computation according to the required accuracy level or hardware resource constraints. The system uses a single accelerator circuit to handle these models, enabling efficient support for variable precision with a simpler computational unit structure than before. In addition, Professor Kim challenged the conventional belief that achieving high computational accuracy requires floating-point units—which are large in chip area and consume significant power—and demonstrated that integer arithmetic units can achieve the same level of accuracy. These research results were published in the IEEE Journal of Solid-State Circuits in June 2022 and presented at the International Conference on Learning Representations (ICLR) in May 2023. Professor Kim stated, “I will continue to focus on designing low-power integrated circuits that minimize energy consumption to contribute to the sustainable development of AI,” and added, “I expect this research to serve as a core foundational technology enabling AI computation in mobile environments where power efficiency is critical.” Professor Jaejoon Kim’s research team [Provided by the Ministry of Science and ICT. Redistribution and database storage prohibited.] Source: https://www.yna.co.kr/view/AKR20250430062200017?input=1195m Translated by: Dohyung Kim, English Editor of the Department of Electrical and Computer Engineering, kimdohyung@snu.ac.kr...

Seoul National University's (SNU’s) College of Engineering, Department of Electrical and Computer Engineering (ECE, President Yongtaek Hong) achieved great honor by winning numerous awards, including the Special Award in the university division, at the 30th Samsung Humantech Paper Award. The event was hosted by Samsung Electronics and co-sponsored by the Ministry of Science & ICT, and Joongang Ilbo. ECE laboratories of professors Kyunghan Lee, Wooyoung Choi, Jongseon Roh, Jaejoon Kim, Wooseok Choi, Jinho Lee, and Jaehyouk Choi, received a total of 10 awards, including two gold awards. This achievement led them to be honored with the "Special Award for Most Awards in the University Division" and Professor Kyunghan Lee of SNU ECE also received the Special Award for Most Supervised Paper Submissions. Unlike individual awards that are presented individual recipients for their outstanding achievements, special awards are given to universities, high schools, and supervising professors who have demonstrated excellence in their performance. In the university division, Seoul National University received gold awards (with a prize of 20 million won each) in three out of the ten individual award categories. Among these three gold awards, two were awarded to students from the ECE department. In the field of Communication and Networks, student Jongyun Lee (Advisor: Professor Kyunghan Lee, Co Authors: Dr. Jeongmin Bae, Student Jaeyoon Hwang) was honored with the gold award for his paper on a learning-based congestion control technique designed to adapt in real-time to previously unseen network environments. In the area of Devices and Processes, student Jiseong Im (Advisor: Professor Wooyoung Choi, Co Authors: Students Jangseng Kim, Jonghyun Ko, Jeonghyun Kim) was honored with the gold award for his paper on the implementation of a high-density and highly efficient three-dimensional AND-type fully parallel convolutional block. Additionally, ECE students Seongjun Park (Advisor: Professor Jongseon Roh) and Jonghyun Go (Advisor: Professor Jaejoon Kim) were awarded silver medals, while Jihee Kim, Wooseung Nam, Shinik Park, Jongseok Park, Jungwook Hong, and Hongsun Jang received honorable mentions. The Humantech Paper Award was established in the year 1994 with the aim of identifying scientists and researchers who are to lead science and technology of the 21st century, among domestic and international university/graduate students and high school students. This year marks the 30th edition of the award, with a total of 1,189 papers submitted and 115 selected as award-winning papers. Seoul National University's ECE department has consistently produced numerous award winners at the Samsung Humantech Paper Award over the past years. The following table shows the detailed information of the awards received. Author Type Field of Research Advisor Department Jongyun Lee Gold Communication & Networks Kyunghan Lee ECE Department Jiseong Im Gold Physical Devices & Processes Wooyoung Choi ECE Department Seongjun Park Silver Communication & Networks Jongseon Roh ECE Department Jonghyun Go Silver Physical Devices & Processes Jaejoon Kim ECE Department Jihee Kim Honorable Mentions Circuit Design Wooseok Choi ECE Department Wooseung Nam Honorable Mentions Communication & Networks Kyunghan Lee ECE Department Shinik Park Honorable Mentions Communication & Networks Kyunghan Lee ECE Department Jongseok Park Honorable Mentions Computer Science & Engineering Kyunghan Lee ECE Department Jungwook Hong Honorable Mentions Computer Science & Engineering Jinho Lee ECE Department Hongsun Jang Honorable Mentions Computer Science & Engineering Jinho Lee ECE Department *Yoohwan Shin Silver Circuit Design Jaehyouk Choi ECE Department *Seheon Jang Bronze Circuit Design Jaehyouk Choi ECE Department *Students from universities other than SNU. Image from the Awarding Event (Video Link : https://www.youtube.com/watch?v=DkmYzcMfoP4&t=25s ) Source: https://ece.snu.ac.kr/ece/news?md=v&bbsidx=55423 Translated by: Jiyong Yoo, English Editor of the Department of Electrical and Computer Engineering, cyoo7@snu.ac.kr ...

Seoul National University (SNU) held the 2023 spring (78th) Electrical and Computer Engineering (ECE) department graduation ceremony on the 26th of February, year 2024, conferring degrees upon 107 bachelor's, 23 master's, and 62 doctoral students. At the event, degrees were awarded to representatives and awards for outstanding graduate theses were presented, along with certificates of excellence to the top graduates. Professor Jinyoung Choi delivered a message of congratulations and encouragement for the bright future of the graduates. As part of this event, a video was created using photos from the graduates' school lives, allowing them to cherish memories of their university lives. Source: https://ece.snu.ac.kr/ece/news?md=v&bbsidx=55372 Translated by: Jiyong Yoo, English Editor of the Department of Electrical and Computer Engineering, cyoo7@snu.ac.kr...

Development of RIS Technology Compatible with Commercial Satellite Frequencies Installable on Skyscrapers without the Assistance of Additional Equipment Based on Transparent Materials, Performance has been Verified by Attaching to a Moving Vehicle [Edaily Reporter Hyunah Kim] We still have to wait at least 5 years for the commercialization of 6G where satellites become base transceiver stations, but technology that enables 5G operation at satellite frequencies has been recently developed and gaining attention. This technology is expected to maintain connectivity in various environments, including skyscrapers above 60-stories high, KTX trains cruising over the speed of 300km/h, and Urban Air Mobility (UAM, Small aircrafts used in urban areas, anticipated to become a new revolution in transportation). KT(CEO: Youngshub Kim), along with the Seoul National University (SNU) Department of Electrical and Computer Engineering (ECE) research team announced last 27th that they have developed Reconfigurable Intelligent Surface (RIS) technology that operates at 5G wireless communication frequency bands (3.5GHz) and KT Skylife satellite frequency bands (12GHz). This technology was unveiled by KT at the MWC 2024. Usage on Outer Walls of Skyscrapers RIS technology induces the reflection and transmission of electromagnetic waves in desired directions. For example, if we attach RIS to the outer walls of skyscrapers, it enables the transmission of high frequency waves into the building, making it possible for receiving & transmitting such signals without exposing wireless communication equipment outside of the building. Such technology can help the construction of network infrastructures more efficiently. The RIS technology developed by KT and the research team of SNU ECE Department’s professor Jungsuek Oh, transmits not only 6G candidate frequencies, but also 5G wireless communication frequencies and KT Skylife satellite frequencies, through a small surface area. Until now, KT has been developing RIS materials and technologies that operate in the mmWave frequency bands (28GHz) and 6G candidate frequency bands (8GHz, 15GHz). On the other hand, the commercialization of RIS technology for 5G communication seemed to be more challenging, since it required samples with larger surface area, due to the relatively lower frequencies of the 5G frequency bands. However, the newly developed RIS simultaneously obtained a wide transmission angle of over 90 degrees (negative refraction angle) and a high transmission rate by utilizing novel structures and surface engineering technologies. The wide transmission angle helps in improving the quality of indoor wireless transmission. Also, due to the transparency of the RIS material, it can be easily installed by attaching it to a vehicle’s window or manufacturing it as an all-in-one structure. Performance Testing on Car Windows In order to verify the versatility of their RIS technology, the KT and SNU research team attached the RIS to a vehicle window moving on a freeway. They observed that signals directed perpendicular to the vehicle’s moving direction, such as 5G waves from communication towers of the outskirts of the freeway or KT Skylife satellite signals, were refracted into the vehicle. KT will continue to collaborate with equipment manufacturers, material & component companies to apply this RIS technology to building & vehicle windows. In addition, it plans to continuously explore key technologies applicable to various wireless network environments such as RIS to secure technological leadership in the field of 6G wireless communication. Professor Jungsuek Oh from the ECE department of SNU stated, "While most research and demonstrations on conventional transparent RIS have focused mainly on improving penetration loss, our RIS technology and validation have demonstrated for the first time that even under constraints of transparent materials and processing conditions, radio waves can be refracted in arbitrary directions, significantly improving communication coverage." Executive Director Jongsik Lee of KT Network Research Institute stated, "We anticipate that this RIS technology will enhance wireless service quality within moving vehicles. We aim to strengthen our leadership in new wireless communication technologies and contribute to the establishment of 6G networks." Researchers from KT R&D center(Seoul, Seocho-gu) and SNU are testing the performance of their RIS technology (Picture from KT) Source: https://www.edaily.co.kr/news/read?newsId=02020486638794784&mediaCodeNo=257&OutLnkChk=Y Translated by: Jiyong Yoo, English Editor of the Department of Electrical and Computer Engineering, cyoo7@snu.ac.kr...

The number of high school graduate students has decreased from 760 thousand in the year 2000 to 440 thousand in the year 2022, and this decreasing trend is predicted to continue in the future. Assuming the enrollment quota of top universities remain relatively constant, this will lower the average academic level of students enrolling to such schools. The government is expected to announce an increase in the medical university enrollment quota sooner or later. This seems to be an adequate policy for the medical health of our citizens, what kind of effect will this have on supplying enough high-quality personnel for cutting-edge fields such as semiconductor technology? Let’s assume the government increases the medical university quota by 2000, which is similar to the SNU science & engineering quota of 1800. Considering that most Korean high school students prefer medical universities to other options, many students who would have enrolled to SNU may apply to medical universities when medical schools increase their capacity. This could lower the academic level of students enrolling to SNU science & engineering majors, and the effect will sequentially show in other universities, too. In China and India, who are competitors of Korea in the semiconductor industry, many academically excellent students are applying to engineering universities instead of medical schools, and we must remember that they are likely to be competitors of our future engineers. Recently, the government, universities, and tech-companies have been working together to increase the supply of engineers in the semiconductor industry by creating new college platforms such as the School of Transdisciplinary Innovations, along with departments specialized in semiconductor technology, and schools that guarantee employment to tech-companies. Some tech-companies even go further, creating programs where foreign students receive a scholarship, get educated in Korean universities, and are employed afterwards. However, the quality of supply also has to be considered along with the amount of supply, since cutting-edge fields such as the semiconductor industry require expertise. Therefore, we need students with high academic capacity to continuously apply to such semiconductor-based college programs. Also, semiconductor technology requires transdisciplinary understanding of a variety of fields, including mathematics, physics, and software. Therefore, educating and training personnel in the semiconductor industry is a time-consuming project, and the importance of engineers with master’s or doctoral degree is significant. In Taiwan’s TSMC, the rival competitor of Samsung Electronics, approximately half of the personnel have a master’s degree, while most of Samsung’s personnel are based on engineers with a bachelor’s degree. In order to encourage the enrollment of top students in STEM fields, it is necessary to provide more stable benefits than currently offered, so that students do not feel relatively disadvantaged in terms of salary or stability. Recently, the government has decided to expand the Presidential Science Scholarship Program not only to undergraduate students but also to graduate students, aiming to boost the pride of scholarship recipients, which is a very commendable decision. I also recommend that companies introduce significant incentive systems for outstanding candidates, departing from the existing wage structure that pays similar salaries to all new hires. Companies should instill confidence in their researchers by extending retirement age, allowing them to work for the company for a longer period. Additionally, in order to elevate at least one or two graduate schools in Korea to a world-class level, there should be a significant increase in research funding. It is also important to increase special scholarships for students in advanced fields, and to hire administrative staff so that professors and graduate students can focus solely on research without being burdened by administrative tasks. While expanding the capacity of medical schools is necessary, it is also crucial to have a national discussion about educating and training future experts in advanced fields. Professor Hyungcheol Shin of SNU ECE Department Source: https://ece.snu.ac.kr/ece/news?md=v&bbsidx=54282 Translated by: Jiyong Yoo, English Editor of the Department of Electrical and Computer Engineering, cyoo7@snu.ac.kr...