US Patent Issued on Feb. 17 for "Large area quartz crystal wafer lapping device and a lapping method thereof" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,983, issued on Feb. 17.

"Large area quartz crystal wafer lapping device and a lapping method thereof" was invented by Jianmin Xu (Tangshan, China), Jie Ding (Tangshan, China), Yong Zhang (Tangshan, China), Liang Wang (Tangshan, China), Hao Su (Tangshan, China), Jianxing Di (Tangshan, China), Jianjun Hao (Tangshan, China), Yingchun Zhang (Tangshan, China), Huaen Wang (Tangshan, China), Xianling Zhang (Tangshan, China) and Lizhi Cui (Tangshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A large area quartz crystal wafer lapping device, provided with a base, a supporting arm assembly, a lapping plate, a swivel gantry, a rotating motor, a loadi...