Scientific research on carbon nanotube-based analog integrated circuits with stretching ability

2023 Fiscal Year Final Research Report

• Project/Area Number: 20H00243
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Medium-sized Section 21:Electrical and electronic engineering and related fields
• Research Institution: Nagoya University
• Principal Investigator: Yutaka Ohno 名古屋大学, 未来材料・システム研究所, 教授 (10324451)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: フレキシブルデバイス / アナログ集積回路 / カーボンナノチューブ

Outline of Final Research Achievements

This research aimed to realize analog integrated circuits, which are indispensable for realizing flexible wearable sensor devices, and established the academic and technological basis for the design and process of CNT analog integrated circuits. In particular, we tackled the most difficult issues of CNT devices, such as characteristic variation and instability, from the viewpoints of both device technology and circuit design technology, and achieved results beyond our initial plans, including the realization of mixed digital/analog circuits such as an analog front-end circuit with an integrated A/D converter.

Free Research Field

ナノ材料エレクトロニクス

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、センシングデバイスにおいて必須のアナログフロントエンド等のアナログ集積回路を柔軟性なフィルム上にCNTと用いて初めて実現したものであり、柔軟なウェアラブルセンサの実現に繋がる重要な成果である。その過程において構築したCNT集積回路設計手法はCNTのみならず他のナノ半導体材料においても有効であり、学術的にも応用上も高い意義がある。