ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,277, issued on May 20, was assigned to CHANGXIN MEMORY TECHNOLOGIES INC. (Hefei, China).
"Wafer processing device and wafer conveying method" was invented by Hui Tang (Hefei, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wafer processing device and a wafer conveying method are provided. The wafer processing device includes: a bearing plate provided with a through hole and configured to bear a wafer; a drive base liftable relative to the bearing plate; a lifting rod arranged between the bearing plate and the drive base, an end of the lifting rod being in contact with the drive base, and the drive base driving the lifting rod to ascend and de...