The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 19, 2019

Filed:

Dec. 10, 2015
Applicants:

Robert Bosch Gmbh, Stuttgart, DE;

Seow Yuen Yee, Mountain View, CA (US);

Gary Yama, Mountain View, CA (US);

Inventors:

Seow Yuen Yee, Mountain View, CA (US);

Gary Yama, Mountain View, CA (US);

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B81C 99/00 (2010.01); G01L 9/00 (2006.01); B81B 7/00 (2006.01); G01L 19/14 (2006.01);
U.S. Cl.
CPC ...
B81C 99/008 (2013.01); B81B 7/0058 (2013.01); G01L 9/0005 (2013.01); G01L 19/144 (2013.01); G01L 19/147 (2013.01); B81B 2201/0264 (2013.01); B81C 2201/038 (2013.01); B81C 2201/056 (2013.01);
Abstract

A MEMS device, e.g., a flexible MEMS pressure sensor, is formed by disposing a sacrificial layer, such as photoresist, on a substrate. A first flexible support layer is disposed on the substrate, and a first conductive layer is disposed over a portion of the first support layer. A liquid or gel separator, e.g., silicone oil, is disposed on an internal region of the first conductive layer. A second flexible support layer encapsulates the first conductive layer and the separator. A second conductive layer disposed over the second support layer at least partially overlaps the first conductive layer and forms a parallel plate capacitor. A third flexible support layer encapsulates the second conductive layer and second support layer. Soaking the sensor in hot water releases the sensor from the sacrificial layer.


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