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:
Feb. 04, 2020
Filed:
Mar. 23, 2018
Applicants:
Semiconductor Manufacturing International (Shanghai) Corporation, Shanghai, CN;
Semiconductor Manufacturing International (Beijing) Corporation, Shanghai, CN;
Inventors:
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/08 (2006.01); H04R 23/00 (2006.01); H04R 19/04 (2006.01); H04R 31/00 (2006.01);
U.S. Cl.
CPC ...
H04R 1/083 (2013.01); H04R 19/04 (2013.01); H04R 23/006 (2013.01); H04R 31/006 (2013.01);
Abstract
A microphone and its manufacturing method, relating to semiconductor techniques. The microphone comprises a capacitor comprising of a back plate and a vibration film plate, with the vibration film plate comprising a plurality of holes. The holes in the vibration film plate provide a ventilation route for pressured air in the microphone, and thus reduce the pressure on the vibration film plate which otherwise is susceptible to damaged under high air pressure. This inventive concept improves a microphone's acoustic tolerance.