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:
Oct. 13, 2026
Filed:
Aug. 22, 2023
Aac Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen, CN;
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen, CN;
Abstract
A MEMS microphone, includes a substrate with a back cavity, and a capacitive system including a back plate and a diaphragm located on the substrate, the back plate includes a body portion and a first protrusion, the diaphragm includes a main portion and a second protrusion, the first protrusion is corresponding to the second protrusion, the substrate includes an upper end close to the capacitive system and a lower end away from the capacitive system, an opening of the back cavity at the upper end of the substrate is larger than an opening at the lower end of the substrate. Compared with the related art, the MEMS microphone disclosed by the present disclosure could improve the resonant frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile