Students from the Semiconductor Device and Integrated Circuit Laboratory (S!LK) (Advisors: Choi Sung Jin, Kim Dae Hwan, Lee Yoon Jung) achieved outstanding results and won the Bronze Prize at the ‘2025 Student Paper Contest’ hosted by the IEEE (Institute of Electrical and Electronics Engineers) Seoul Section, the world's largest gathering of technology experts.

In this contest, doctoral and master's students presented innovative device technologies and application research utilizing next-generation semiconductor materials—carbon nanotubes (CNT) and oxide semiconductors (IGZO)—drawing significant academic attention. The awardees and their main research topics are as follows.

Researcher Jeong Seong Hyeon received high praise for his presentation titled “A New Paradigm of Carbon Nanotube Transistors: Multi-Valued Logic through Vertical Stacking.” He proposed a novel paradigm for implementing multi-valued logic devices that overcomes the limitations of existing binary logic by introducing a vertical stacking process.

Researcher Lee Han Bin, through his paper “Electrical Effects of Gate-Stack Engineering in Short Channel CNT Network Transistors,” deeply elucidated the impact of gate-stack engineering on the electrical characteristics of short-channel CNT network transistors, a core element of fine-pitch processes.

Researcher Park So Jeong presented her research titled “Wafer-Scale Split-Channel a-IGZO TFTs for Hump-Free and Stress-Robust Operation.” She proposed a wafer-scale split-channel structure that suppresses the hump phenomenon—a persistent issue in a-IGZO thin-film transistors (TFTs), which are gaining attention as next-generation display and memory devices—and enhances resistance to electrical stress.

Researcher Park Ji Won, under the theme “End-to-End Process-to-Application Demonstration of Variability-Engineered Underlap CNT Network FETs for Physical Unclonable Functions,” developed an underlap CNT network FET with controlled variability for Physical Unclonable Functions (PUF), a core hardware security technology. He successfully demonstrated the entire process from fabrication to practical application.

Professor Choi Sung Jin, the supervising professor, stated, “This award is the fruit of the students' relentless exploration and challenges in the field of next-generation semiconductor devices,” adding, “We will spare no effort in supporting the students to grow into globally competitive researchers.”