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成果報告書詳細
管理番号20170000000234
タイトル*平成28年度中間年報 次世代プリンテッドエレクトロニクス材料・プロセス基盤技術開発 フレキシブル複合機能デバイス技術の開発
公開日2017/5/11
報告書年度2016 - 2016
委託先名国立研究開発法人産業技術総合研究所 国立大学法人名古屋大学
プロジェクト番号P10026
部署名IoT推進部
和文要約
英文要約Title:Development of next generation printed electronics materials / process foundation technology (FY2016-FY2018) FY2016 Annual Report

 In this project, we aim to develop a flexible wireless module in which an ultra-thin silicon circuit chips are mounted on a flexible circuit substrate, and flexible electrodes and ECG pads formed on textile by printing technology. Also, we conduct experiment a demonstration using the flexible wireless module and sensing wear.
 As a development of a flexible wireless module, we developed a mounting method in order to mount the ultra-thin silicon circuit chip on the flexible substrate. We designed the structure of flexible substrate to prevent from transmitting strain from textile to the ultra-thin silicon circuit chip. Also, we conducted experiment using the flexible substrate, and confirmed that the strain on the ultra-thin silicon circuit can be reduced because of the structure of the flexible substrate. We applied for the patent about the idea of mounting method. We also fabricated wireless communication modules using 920 MHz and UWB band and conducted experiments to communicate many electrocardiogram waveforms using the wireless modules. 920 MHz and UWB band have merits of long distance communication and high data rate, respectively. We succeeded to communicate using both wireless communication modules.
 About the development of flexible electrode and ECG pad, we developed a process of patterning silver-plated fibers on a flexible substrate for developing sensing wear. The electrode fabricated by this process was evaluated for stretch tolerance and wash tolerance. At 100 % elongation of the electrode, the resistance change from the initial value was within 40%. Also, the resistance change from the initial value was within 60% after washing 10 times. As a result of electrocardiographic waveform measurement using this electrode, it was confirmed that waveforms which was equivalent to waveforms using the conventional electrolyte-gel-electrode can be obtained.
 Finally, we decided that the target diseases to be detected by sensing wear are ischemic heart disease and arrhythmia disease. Particularly, in order to the detection of arrhythmic diseases causing blood pressure fluctuation, a system to detect fluctuations in blood pressure was also studied, and the radial artery, the ulnar artery, and the arterioles were set as arteries to be detected.
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