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:
Dec. 28, 2021
Filed:
Jul. 12, 2019
Applicant:
Db Hitek Co., Ltd., Seoul, KR;
Inventors:
Dae Young Kim, Suwon-si, KR;
Jin Hyung Lee, Seoul, KR;
Assignee:
DB HITEK CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B81B 7/00 (2006.01); H04R 19/04 (2006.01); H04R 1/28 (2006.01); B81B 3/00 (2006.01); B81C 1/00 (2006.01); H04R 7/04 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
B81B 7/0061 (2013.01); B81B 3/0021 (2013.01); B81C 1/00158 (2013.01); H04R 1/2823 (2013.01); H04R 7/04 (2013.01); H04R 19/005 (2013.01); H04R 19/04 (2013.01); B81B 2201/0257 (2013.01);
Abstract
A MEMS microphone includes a substrate defining a cavity including a first sidewall extending a vertical direction, a back plate disposed over the substrate and defining a plurality of acoustic holes, a diaphragm disposed between the substrate and the back plate, the diaphragm having at least one vent hole, an anchor extending from a circumference of the diaphragm to connect an end portion of the diaphragm to an upper surface of the substrate, and at least one path member communicating with the vent hole, the path member providing a flow path for the acoustic pressure to flow downwardly toward the cavity.