ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,473, issued on April 22, was assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co. LTD. (Shenzhen, China).
"MEMS microphone" was invented by Zhuanzhuan Zhao (Shenzhen, China), Kaijie Wang (Shenzhen, China), Linlin Wang (Shenzhen, China) and Rui Zhang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a 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; wherein the diaphragm includes a vibration portion and a fixing portion surrounding the vibration portion an...