ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,629, issued on June 23, was assigned to ETRON TECHNOLOGY INC. (Hsinchu, Taiwan).
"3D IC structure" was invented by Chao-Chun Lu (Hsinchu, Taiwan) and Ming-Hong Kuo (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An IC structure includes a first memory stack including a plurality of semiconductor die. The plurality of semiconductor memory dies horizontally separate with each other, wherein each semiconductor die includes a top surface, a bottom surface opposite to the top surface, and four sidewalls with a first sidewall, a second sidewall, a third sidewall and a fourth sidewall, and a plurality of edge pads located on the first sidew...