ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,931, issued on June 17, was assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co. LTD. (Shenzhen, China).
"MEMS microphone" was invented by Zhuanzhuan Zhao (Shenzhen, China) and Rui Zhang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "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...