ALEXANDRIA, Va., April 21 -- United States Patent no. 12,610,466, issued on April 21, was assigned to Advanced Semiconductor Engineering Inc. (Kaohsiung, Taiwan).
"Circuit structure" was invented by Wen-Long Lu (Kaohsiung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A circuit structure includes a low-density conductive structure, a high-density conductive structure and a plurality of traces. The high-density conductive structure is disposed over the low-density conductive structure, and defines an opening extending from a top surface of the high-density conductive structure to a bottom surface of the high-density conductive structure. The opening exposes a first pad of the low-density conductive st...