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:
Sep. 24, 2019

Filed:

Nov. 13, 2017
Applicant:

Invensense, Inc., San Jose, CA (US);

Inventors:

Ilya Gurin, Mountain View, CA (US);

Joseph Seeger, Menlo Park, CA (US);

Matthew Thompson, Beaverton, OR (US);

Assignee:

InvenSense, Inc., San Jose, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B81B 3/00 (2006.01); B81C 99/00 (2010.01);
U.S. Cl.
CPC ...
B81B 3/0013 (2013.01); B81B 3/0008 (2013.01); B81B 3/0027 (2013.01); B81C 99/003 (2013.01); B81B 2201/0235 (2013.01);
Abstract

A microelectromechanical system (MEMS) sensor includes a MEMS layer that includes fixed and movable electrodes. In response to an in-plane linear acceleration, the movable electrodes move with respect to the fixed electrodes, and acceleration is determined based on the resulting change in capacitance. A plurality of auxiliary electrodes are located on a substrate of the MEMS sensor and below the MEMS layer, such that a capacitance between the MEMS layer and the auxiliary loads changes in response to an out-of-plane movement of the MEMS layer or a portion thereof. The MEMS sensor compensates for the acceleration value based on the capacitance sensed by the auxiliary electrodes.


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