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Research team led by Prof. Joohoon Kang develops ternary logic transis…

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댓글 0건 조회 34회 작성일 21-07-30 14:10


Research team led by Prof. Joohoon Kang develops ternary logic transistor applying Heterojunction

- The next-generation semiconductor system technology that overcomes physical limitations of the traditional binary system


[Figure 1] Prof. Joohoon Kang

Professor Kang from AMSE and Prof. Jeong Ho Cho from Yonsei University developed the next-generation semiconductor system technology that enabled ternary logic.

Research and development of high-performing semiconductors that rapidly process mass information is increasingly drawing attention owing to the growing demand for AI, autonomous driving, and IoT devices, which are at the center of the ongoing fourth industrial revolution.

The binary logic system is currently facing mechanical limitations to improve integration per unit area; thereby, research on fabricating the multi-valued logic system has emerged as an alternative to achieve goals in order to enhance performance in processing information and power consumption.

To address such challenges, the research team arranged stable "0", "1", and "2" states for ternary information processing by sequentially driving two types of semiconductors with different threshold voltages. Also, they demonstrated the flawless operation of various logical operations using the ternary system.

Professor Kang stated, "I expect the technology to come into use in the semiconductor industry soon considering the system's excellent applicability in large-area at waferscale without major changes in the conventional semiconductor fabrication process."

[Figure 2] Schematic and Working principle of multi-valued logic device

With the result, researchers are embarking on discovering the ideal combination of semiconductor materials and are following up on a multi-valued logic study that surpasses the ternary logic.

D.U.L. and S.B.J. contributed equally to this work. This work was supported by the National Research Foundation of Korea (NRF) grant, funded by the Korean Government (MSIT) (2020R1A4A2002806 and 2020R1C1C1009381) and the Creative Materials Discovery Program (2019M3D1A1078299) through the NRF of Korea funded by the Ministry of Science and ICT, Korea. This research was partially supported by the Yonsei University Research Fund of 2021.

 ※ Paper title : Multi-State Heterojunction Transistors Based on Field-Effect Tunneling-Transport Transitions


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