ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,280, issued on July 22, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).

"Semiconductor device and method" was invented by Chen-Hua Yu (Hsinchu, Taiwan), An-Jhih Su (Taoyuan, Taiwan), Chia-Nan Yuan (Hsinchu, Taiwan), Shih-Guo Shen (New Taipei, Taiwan), Der-Chyang Yeh (Hsinchu, Taiwan), Yu-Hung Lin (Taichung, Taiwan) and Ming Shih Yeh (Zhubei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some embodiments, laser devices having contact pads are formed. The laser diodes are formed from a doped semiconductive material. The contact pads and semiconductive material share an ohmic junction. Underbump metallurgies ar...