US Patent Issued to Shenzhen Newsonic Technologies on May 13 for "Structure and manufacturing method of surface acoustic wave filter with back electrode of piezoelectric layer" (Chinese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,213, issued on May 13, was assigned to Shenzhen Newsonic Technologies Co. Ltd. (Shenzhen, China).

"Structure and manufacturing method of surface acoustic wave filter with back electrode of piezoelectric layer" was invented by Guojun Weng (Shenzhen, China) and Gongbin Tang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface acoustic wave (SAW) filter includes a bottom substrate, a piezoelectric layer disposed above the bottom substrate, the piezoelectric layer having a bottom surface facing the bottom substrate and a top surface opposite to the bottom surface, a cavity disposed below the piezoelectric layer, an interdigital tran...