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Dongseob Lee, a student in the Integrated Program at POSTECH’s Department of Electrical Engineering (co-first author, advisor: Prof. Wonbin Hong), received the Honorable Mention of Best Paper Award at the 2024 IEEE MTT-S Asia-Pacific Microwave Conference (APMC) for his paper titled “A Study on the Influence of Metal Mesh Design on a Transparent Antenna on Display for Radar and Communication Using Ultra Fine Mesh Film.” This marks the first award for their research group at the APMC conference.

The IEEE Asia-Pacific Microwave Conference (APMC) is the largest international academic conference in the Asia-Pacific region in the fields of microwave, millimeter-wave, and related technologies, organized by the IEEE Microwave Theory and Techniques Society (IEEE MTT-S). This year, the conference was held in Bali, Indonesia.

The paper presented at the conference focused on the innovative design of transparent antennas using ultra-fine metal mesh films and explored their next-generation applications in radar and communication systems. Particularly, the research systematically analyzed how metal mesh design affects the performance of transparent antennas and integrated display technologies. The paper’s potential impact on advancing next-generation communication and radar technologies was highly valued, leading to the Honorable Mention of Best Paper Award.

Jonghoon Kim, a Ph.D. student at POSTECH’s Semiconductor Graduate School, and Professor Seun Shin’s Power Management and Integrated Circuit Systems Design Laboratory will present their semiconductor circuit design research results at the ISSCC 2025. Additionally, the research of Munjeong Cho, an Integrated Program student in POSTECH’s Department of Electrical Engineering, will be showcased through the ISSCC Student Research Preview (SRP).

Jonghoon Kim achieved a significant milestone by optimizing the parameters of the resonant current-mode wireless charging technology for implantable medical devices and multi-dimensionalizing the power receiving coil. His paper is titled “A Programming-Free Three-Dimensional Resonant Current-Mode Wireless Receiver with Real-Time Link-Adaptivity and a 0.904 cm³ Receiver Coil for Implantable Systems.”

Munjeong Cho, on the other hand, proposed a novel on-chip isolated offline RGBW LED driver with a single-stage and single-transformer winding that provides multiple outputs. He also designed a new controller capable of independent and precise current control.

ISSCC, often referred to as the “Olympics of Semiconductor Design,” is the highest authority conference in semiconductor circuit design, with over 70 years of tradition. ISSCC 2025 will take place from February 16 to 20, 2025, in San Francisco, USA.

Juyoung Yoon, a Ph.D. student at POSTECH’s Department of Electrical Engineering (co-author: Dowan Kang, advisor: Prof. Yoonyoung Jung), won the Grand Prize at the Samsung Display Industry-Academia Cooperation Paper Competition for the paper titled “Improving Contact Resistance and Thermal Stability of Sub-µm a-IGZO Transistors for Next-Generation Displays.”

The paper presents a novel approach to simultaneously improve the contact resistance and thermal stability of the oxide semiconductor/metal interface, a key technology for realizing next-generation high-resolution displays. While oxide semiconductors offer various advantages, their low electron mobility and high contact resistance made them unsuitable for high pixel density displays compared to silicon materials.

In this study, the researchers proposed inserting an ultra-thin insulating layer between the oxide semiconductor and metal to effectively prevent metal-oxide formation at the interface. This method significantly improved the contact resistance, enhancing the electrical characteristics of short-channel devices. At the same time, it minimized performance degradation due to heat, contributing to the long-term stability of display devices and the realization of high-resolution displays, earning high recognition.

Dongseob Lee, a student in the Integrated Program at POSTECH’s Department of Electrical Engineering (advisor: Prof. Wonbin Hong), won the 1st Prize Best Antenna Measurement Paper Award at the 2024 IEEE International Symposium on Antennas and Propagation (ISAP) for his paper titled “Streamlined Characterization Methodology for Chip-Level Antenna Performance: Electrical and Mechanical Analysis and Optimization.” This marks the first award for his research group at the ISAP conference.

The IEEE International Symposium on Antennas and Propagation (ISAP) is the largest international academic conference in the field of IEEE Antennas and Propagation Society/IEEE AP-S across the Asia-Pacific region, and it was held this year in Songdo, Incheon, Korea. A total of 516 papers were submitted to ISAP 2024, and after a rigorous three-stage review process, Dongseob Lee’s paper emerged as the winner from among six final candidates.

The paper presents a precise performance evaluation methodology for antennas designed using Fan-Out Wafer Level Package (FOWLP) by analyzing the electrical and mechanical characteristics, such as die-shift and warpage, that occur during the design process. The study’s originality, innovation, and potential impact on antenna packaging and electromagnetic wave applications at the chip level were highly recognized, leading to the award.

Kihun Nam, a Ph.D. student at POSTECH’s Department of Electrical Engineering (advisor: Prof. Rokhyeon Baek), has been selected as an “Outstanding Student Researcher” at the 8th K-CHIPS (Korea Collaborative & High-tech Initiative for Prospective Semiconductor Research) Awards. He received this recognition for his work on the project “Development of High-Mobility Channel/Dielectric Materials for Ultra-High Density 3D NAND Memory and AI-Based Large-Scale Analysis Platform” under the Ministry of Trade, Industry, and Energy, the Korea Institute for Industrial Technology (KEIT), and the Korea Semiconductor Research Consortium (COSAR).

The K-CHIPS Awards are given to student researchers participating in the Ministry’s semiconductor talent development project, with the aim of strengthening their capabilities and motivating them. Awardees are selected based on the impact of their research contributions to the project. This year, the award was given to seven outstanding research institutions out of the 94 participating in the project, and Professor Baek’s research team has been recognized for six consecutive years, having received awards in the 3rd to 7th editions of the K-CHIPS Awards.

Professor Wonbin Hong from POSTECH’s Department of Electrical Engineering has been appointed as a member of the Executive Committee (AdCom) of the IEEE Antennas and Propagation Society (IEEE AP-S), marking the first time a Korean scholar has been selected for this prestigious position.

In the IEEE AP-S election held this year, four new executive committee members were chosen, with Professor Hong being selected to represent the Asia-Pacific region (Region 10). His term will begin on January 1, 2025, and last for three years. Professor Hong, who was named the first IEEE Fellow in the antenna field from South Korea, has received numerous Best Paper Awards at major IEEE AP-S conferences, served as the editor for various academic journals, organized conferences, and contributed to technical committees, all of which played a significant role in his selection.

Professor Hong earned his bachelor’s degree from Purdue University, and his master’s and Ph.D. degrees from the University of Michigan. Since 2016, he has been guiding students at POSTECH.

In his statement, Professor Hong expressed, “I feel a great sense of responsibility as the first Korean to be elected to the IEEE AP-S Executive Committee. Since antenna and propagation technologies form the foundation of electrical and electronic engineering, I will strive to contribute to the advancement of research in this field through my activities at IEEE AP-S.”

The IEEE is the world’s largest and most prestigious professional organization in the fields of electrical, electronic, computer, and communications engineering, with nearly 400,000 members across 160 countries. IEEE AP-S, with 12,000 members, is the world’s largest society dedicated to the field of radio science.