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:
Jul. 09, 2019
Filed:
Aug. 14, 2017
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventors:
Stephen Duffy, Glasgow, GB;
Colin Robert Jenkins, Linlithgow, GB;
Tsjerk Hans Hoekstra, Balerno, GB;
Assignee:
Cirrus Logic, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 19/00 (2006.01); B81B 3/00 (2006.01); B81C 1/00 (2006.01); H04R 7/06 (2006.01); H04R 19/04 (2006.01);
U.S. Cl.
CPC ...
B81B 3/0072 (2013.01); B81C 1/00666 (2013.01); H04R 7/06 (2013.01); H04R 19/005 (2013.01); H04R 19/04 (2013.01); B81B 2201/0257 (2013.01); B81B 2203/0127 (2013.01); B81B 2203/04 (2013.01); B81B 2207/03 (2013.01); H04R 2201/003 (2013.01);
Abstract
The application describes a MEMS transducer comprising a layer of conductive material provided on a surface of a layer of membrane material. The layer of conductive material comprises first and second regions, wherein the thickness and/or the conductivity of the/each first and second regions is different.