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:
Jun. 07, 2022
Aac Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen, CN;
Zhuanzhuan Zhao, Shenzhen, CN;
Zhengyu Shi, Shenzhen, CN;
Kaijie Wang, Shenzhen, CN;
Linlin Wang, Shenzhen, CN;
Rui Zhang, Shenzhen, CN;
AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen, CN;
Abstract
The present disclosure discloses a Micro-Electro-Mechanical System (MEMS) microphone including a substrate including a back cavity; a capacitive system arranged on the substrate, the capacitive system including a back plate and a diaphragm opposite to the back plate, the diaphragm located on a side of the back plate close to the substrate; a support member located between the diaphragm and the back plate; a blocking portion arranged on a side of the back plate facing the diaphragm; wherein the diaphragm includes a vibration portion and a fixing portion surrounding the vibration portion and fixed to the substrate, the vibration portion and the back plate are fixedly connected by the support member, a projection of the blocking portion along a vibration direction of the diaphragm is located within the vibration portion of the diaphragm. Compared with the related art, MEMS microphone disclosed by the present disclosure has a high signal-to-noise ratio.