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:
Jun. 17, 2025
Filed:
Aug. 03, 2022
Aac Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen, CN;
Zhuanzhuan Zhao, Shenzhen, CN;
Rui Zhang, Shenzhen, CN;
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen, CN;
Abstract
The present invention discloses a MEMS microphone, which includes a substrate with a back cavity, a connection part, and a capacitive system arranged in the connection part. The capacitive system includes a first electrode connected to the inner wall of connection part, and a second electrode disposed on the substrate near the first electrode and spaced from the first electrode. The second electrode has two shape separation gaps. The shape separation gap includes a splitting gap in the second electrode, and two end gaps. The second electrode is divided into an effective vibration area and an auxiliary area by adopting a cracking gap structure. While improving the sensitivity of the first electrode, the stress concentration point of the second electrode is directed to the edge of the second electrode, so as to disperse the stress under the action of loud pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile