ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,209, issued on Jan. 20, was assigned to UNITED MICROELECTRONICS CORP. (Hsinchu, Taiwan).

"Smart cassette and calibration method for robotic arm" was invented by Chin-Hsin Chiu (Tainan, Taiwan), Jui-Hung Lee (Kaohsiung, Taiwan), Chih-Chung Kuo (Tainan, Taiwan), Chia-Jung Chang (Tainan, Taiwan) and Yung-Chien Kung (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A smart cassette and a calibration method for a robotic arm are provided. The smart cassette includes a carrier, a first vertical sensor, a second vertical sensor, a battery and a processor. The first vertical sensor is disposed on a first inner side of the carrier to obtain a pl...