ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,463, issued on Feb. 17, was assigned to EPISTAR Corp. (Hsinchu, Taiwan).
"Light emitting device" was invented by Hsin Ying Wang (Hsinchu, Taiwan), Tzung Shiun Yeh (Hsinchu, Taiwan), Yu Ling Lin (Hsinchu, Taiwan) and Bo Jiun Hu (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting device, includes a substrate; a semiconductor stack formed on the substrate; a first current blocking patterned structure and a second current blocking patterned structure formed on the semiconductor stack and separated from each other; and a plurality of electrodes formed on the semiconductor stack and electrically connected to the semiconductor ...