Cover of the June 2025 Issue of Advanced Science

The paper by Ph.D. candidate Junhyeong Park from the Advanced TFTs and Circuits for Smart Electronics Laboratory (ACELAB), led by Professor Sooyeon Lee, has been selected as the cover article for the June 2025 issue of Advanced Science.

Advanced Science is one of the leading academic journals that covers groundbreaking research in cutting-edge science and technology, including materials science, electronic devices, nanotechnology, energy, and biomedical fields. It comprehensively introduces research achievements that contribute to the development of next-generation technologies.

Details on the paper from Professor Sooyeon Lee’s research team are as follows:

In the June 2025 issue, first authored by Junhyeong Park, the team implemented high-performance indium-gallium-zinc-oxide (IGZO) synaptic transistors and an array thereof for neuromorphic computing. By optimizing the floating-gate fabrication process, they lowered the transistors’ operating voltage and greatly extended synaptic-weight retention time. They also built a synapse array, confirming both large-area integrability and excellent device-to-device uniformity. Leveraging these array characteristics, they achieved high image-classification accuracy with a spiking neural network. Altogether, the study demonstrates that IGZO-based synaptic transistors can deliver high performance in large-scale neuromorphic systems.

Source: https://ece.snu.ac.kr/ece/news?md=v&bbsidx=56603
Translated by: Dohyung Kim, English Editor of the Department of Electrical and Computer Engineering, kimdohyung@snu.ac.kr