ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,707,563, issued on Aug. 11, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).
"Circuit board" was invented by Sang Myung Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A circuit board according to an embodiment includes an insulating layer including a cavity; and a metal layer disposed on an inner wall of the cavity of the insulating layer, wherein at least one recess concave toward the inside of the insulating layer is formed on an inner wall of the cavity, wherein the metal layer includes: a first metal layer disposed on the inner wall of the cavity while filling the recess; and a second metal layer disposed on the firs...