Abstract
This paper reports on the design and experimental characterization of a higher-order wine glass (third order: WG3) mode MEMS square plate resonator to reduce the effect of fluidic damping and thereby enhancing the quality (Q) factor in water for biosensing applications. We show that the lateral strain profile of the WG3 mode is well suited for fully-differential piezoelectric transduction (which helps to reduce parasitic feedthrough) and offers reasonable electromechanical coupling. We experimentally demonstrate that exciting the WG3 mode in water results in a higher Q factor (Q of 410 at 36.36 MHz) compared to the fundamental wine glass (WG1) mode (Q of 340 at 10.53 MHz).
Original language | English |
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Title of host publication | 2017 IEEE SENSORS Proceedings |
Publisher | IEEE |
ISBN (Print) | 978-1-5090-1012-7 |
DOIs | |
Publication status | Published - Oct 2017 |
Event | 16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom Duration: 30 Oct 2017 → 1 Nov 2017 |
Conference
Conference | 16th IEEE SENSORS Conference, ICSENS 2017 |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 30/10/17 → 1/11/17 |
Research Keywords
- higher-order mode in water
- MEMS resonator
- piezoelectric-on-silicon
- resonance sensing