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.
Patent No.:
Date of Patent:
Jan. 24, 2023
Filed:
Jul. 07, 2020
Applicant:
Knowles Electronics, Llc, Itasca, IL (US);
Inventor:
Peter V. Loeppert, Durand, IL (US);
Assignee:
Knowles Electronics, LLC, Itasca, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B81B 7/00 (2006.01); B81C 1/00 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
B81C 1/00158 (2013.01); B81B 7/0054 (2013.01); H04R 19/005 (2013.01); B81B 2201/0257 (2013.01);
Abstract
An implementation of a MEMS device includes a constrained diaphragm comprising a surface, the diaphragm having a net compressive stress; and a backplate comprising a surface facing the surface of the diaphragm, the surface of the backplate having a center, and a post extending from the surface of the backplate, wherein the post is located at or near a center of the surface and limits a maximum deflection of the diaphragm.