Authors: Professor Jong-Ho 메이저 토토 사이트, Professor Jae-Joon Kim, Ph.D. candidate Kyung Min 메이저 토토 사이트, Ph.D. candidate Hunhee Shin, Postdoctoral researcher Ryun-Han Koo, and Dr. Jinwoo Park, Department of Electrical and Computer Engineering

A research team led by Professor Jong-Ho 메이저 토토 사이트 from the Department of Electrical and Computer Engineering at Seoul National University has achieved the remarkable feat of having three papers accepted at IEEE IEDM (International Electron Devices Meeting) 2025, the world’s most prestigious conference in the field of semiconductors. The team proposed a new direction for next-generation AI and low-power semiconductor technologies, demonstrating comprehensive research capabilities that span materials, devices, and systems.

The first paper presents the development of an HfZrO₂ ferroelectric capacitor (FeCAP) that simultaneously achieves world-leading remanent polarization and low-voltage operation by introducing an HfO₂–TiO₂–HfO₂ triple interlayer structure. The device enables a non-destructive read memory window at 0 V, opening new possibilities for ultra-low-power and neuromorphic hardware applications.

The second paper introduces a breakdown-based physically unclonable function (MBD-PUF) utilizing commercial magnetic tunnel junction (MTJ) devices, which achieves both bit error-free stable security responses and complete concealment of the original key. The proposed MBD-PUF operates reliably even at high temperatures up to 125 °C and demonstrates strong resistance against machine learning-based modeling attacks, proving its potential as a practical next-generation hardware security solution. This research was conducted in collaboration with 메이저 토토 사이트. Jae-Joon Kim’s research team from the ECE Department.

The third paper reports the world’s first implementation of a real-time mixed-gas discrimination system that integrates a self-cancellation circuit with gas sensors on a single chip. By combining two FET-type gas sensors with a subtraction circuit, the system internally cancels the effects of interfering gases, enabling real-time, selective detection of target gases without external signal processing. The research team demonstrated the technology on ultra-compact, ultra-low-power hardware by detecting H₂S gas emitted during egg spoilage, achieving real-time freshness monitoring.

메이저 토토 사이트. Jong-Ho Lee stated, “An integrated research approach combining device physics, circuits, and systems was key to achieving these results,” adding, “This outcome demonstrates that the research team at Seoul National University’s College of Engineering is leading the development of core technologies for next-generation intelligent semiconductors.”

Figure 1. Overview of High-Performance FeCAP. Paper Title: HZO FeCap with Ultra-High 2P_r = 133 μC/cm², PZT-Level E_c (1.17MV/cm @ 6 nm), and CMWε = 9.6 @ 0 V by Adopting HfO2-TiO2-HfO2 Pseudomorphic Interlayer

Figure 2. Overview of MTJ-based MBD-PUF. Paper Title: Concealable and Bit Error-Free Breakdown-Based Physical Unclonable Functions Using Magnetic Tunnel Junctions

Figure 3: Overview of Mixed Gas Discrimination System. Paper Title: Innovative Mixed Gas Discrimination System Using Integrated Self-Cancellation Circuit

Source:/ece/news?md=v&bbsidx=56986
Translated by: Changhoon Kang, English Editor of the Department of Electrical and Computer Engineering, changhoon27@snu.메이저 토토 사이트kr