ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,975, issued on March 17, was assigned to Amkor Technology Singapore Holding Pte. Ltd. (Singapore).

"Semiconductor devices and related methods" was invented by Gyu Wan Han (Incheon, South Korea), Won Bae Bang (Incheon, South Korea), Ju Hyung Lee (Gyeonggi-Do, South Korea), Min Hwa Chang (Incheon, South Korea), Dong Joo Park (Incheon, South Korea), Jin Young Khim (Seoul, South Korea), Jae Yun Kim (Incheon, South Korea), Se Hwan Hong (Seoul, South Korea), Seung Jae Yu (Incheon, South Korea), Shaun Bowers (Gilbert, Ariz.), Gi Tae Lim (Incheon, South Korea), Byoung Woo Cho (Seoul, South Korea), Myung Jea Choi (Incheon, South Korea), Seul Bee Lee (Gyeonggi-Do, South Korea), Sang Goo Ka...