ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,942, issued on April 22, was assigned to AAC Technologies (Nanjing) Co. Ltd. (Nanjing, China).
"Piezoelectric resonator" was invented by Shuai Yang (Shenzhen, China), Ke Wu (Shenzhen, China), Lirong Zhang (Shenzhen, China), Zhiqiang Zhuang (Shenzhen, China) and Chao Wang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a piezoelectric resonator comprising a substrate having an acoustic reflection mirror, a bottom electrode stacked on the substrate, a piezoelectric layer disposed on the substrate and covering the bottom electrode, and a top electrode stacked on a surface of piezoelectric layer distal to t...