ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,461, issued on Sept. 30, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).

"System and method for bonding semiconductor devices" was invented by Kai-Tai Chang (Kaohsiung, Taiwan) and Tung Ying Lee (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes determining a first offset between a first alignment mark on a first side of a first wafer and a second alignment mark on a second side of the first wafer; aligning the first alignment mark of the first wafer to a third alignment mark on a first side of a second wafer, which includes detecting a location of the second alignment mark of the first ...