ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,469,756, issued on Nov. 11, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).
"Warpage control of packages using embedded core frame" was invented by Jiun Yi Wu (Zhongli, Taiwan), Chen-Hua Yu (Hsinchu, Taiwan) and Chung-Shi Liu (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes placing a package component over a carrier. The package component includes a device die. A core frame is placed over the carrier. The core frame forms a ring encircling the package component. The method further includes encapsulating the core frame and the package component in an encapsulant, forming redistribution lines...