An AlN cantilever for a wake-up switch triggered by air pressure change

Y. Kaiho, H. Takahashi, Y. Tomimatsu, T. Kobayashi, K. Matsumoto, I. Shimoyama, T. Itoh, R. Maeda

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

This research reports an AlN cantilever with an air chamber for a wake-up switch triggered by air pressure change. The proposed sensor is designed to fulfil both high sensitivity and low power consumption. By combining an air chamber to the one side of the AlN cantilever surface, the barometric pressure change generates a piezoelectric voltage. Thus, a wake-up switch triggered by air pressure change can be achieved using an AlN cantilever. The size of the fabricated AlN cantilever was 2000 μm × 1000 μm × 2 μm. The sensitivity to static differential pressure was 11.5 mV/Pa at the range of -20 Pa to 20 Pa. We evaluated the response of the sensor, which was composed of the AlN cantilever and the chamber of 60 ml in volume, when air pressure change was applied. The output voltage increased with increasing the applied air pressure change. It was observed that the maximum output voltage of 50 mV was generated when the air pressure change was 13 Pa.

本文言語English
論文番号012122
ジャーナルJournal of Physics: Conference Series
476
1
DOI
出版ステータスPublished - 2013
外部発表はい
イベント13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2013 - London, United Kingdom
継続期間: 2013 12 32013 12 6

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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