Publication

MEMS Capacitive Pressure Sensor Based on Polysilicon Sealed Membrane

Mihai Adrian Ionescu, Paolo Giuseppe Dainesi
2006
Conference Papers

Abstract

This paper presents a pressure sensor based on a variable capacitor formed by a movable polysilicon sealed membrane sensitive to pressure. When operated as a pressure sensor two operation regions are observed, an exponentially sensitivity region at low pressure (0-100mmHg) and a linear sensitivity region (20-400kPa) in the touch operation mode. Preliminary results show a sensitivity of 2.2fF/mmHg and are in good agreement with analytical and finite-element simulations.

Official source

https://infoscience.epfl.ch/entities/publication/0ef50916-5496-4992-9a9e-b8b9a07a1b11

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MEMS Capacitive Pressure Sensor Based on Polysilicon Sealed Membrane

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