ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,402,441, issued on Aug. 26, was assigned to EPISTAR Corp. (Hsinchu, Taiwan).

"Semiconductor device" was invented by Chang-Hua Hsieh (Hsinchu, Taiwan), Chia-Ming Liu (Hsinchu, Taiwan), Chi-Hsiang Yeh (Hsinchu, Taiwan), Shuo-Wei Chen (Hsinchu, Taiwan) and Yen-Kai Yang (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device, includes: a first conductive type semiconductor region including a first semiconductor structure, wherein the first semiconductor structure includes one or more pairs of stack, the one or more pairs of stack respectively includes a first layer and a second layer, the first layer includes AlxGa1-xN, the se...