Invention Grant
- Patent Title: Capacitive pressure sensor
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Application No.: US15439674Application Date: 2017-02-22
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Publication No.: US10648879B2Publication Date: 2020-05-12
- Inventor: Kathirgamasundaram Sooriakumar , Anu Austin , Ian Rose Bihag , Dieter Naegele-Preissmann
- Applicant: Kathirgamasundaram Sooriakumar , Anu Austin , Ian Rose Bihag , Dieter Naegele-Preissmann
- Agency: Cozen O'Connor
- Main IPC: G01L9/00
- IPC: G01L9/00 ; H05K1/18 ; H05K3/46 ; H05K3/40

Abstract:
Aspects of the disclosure provide a capacitive pressure sensor. The capacitive pressure sensor can include a first substrate having a first surface and a second surface, a movable plate at a bottom of a first cavity recessed into the substrate from the first surface, and a second substrate bonded to the first substrate over the first surface. A second cavity is formed between the movable plate and the second surface. The second substrate includes a fixed plate disposed over the movable plate to form a capacitor. The second substrate further includes a third cavity between a surface of the fixed plate opposite to the movable plate and a surface of the second substrate opposite to the first substrate.
Public/Granted literature
- US20170241855A1 CAPACITIVE PRESSURE SENSOR Public/Granted day:2017-08-24
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