ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,471,213, issued on Nov. 11, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).
"Circuit board" was invented by Jong Bae Shin (Seoul, South Korea), Soo Min Lee (Seoul, South Korea) and Jae Hun Jeong (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A circuit board including a first insulating layer; a first circuit pattern disposed on the first insulating layer; and a second insulating layer disposed on the first insulating layer and including a cavity. An upper surface of the first insulating layer includes a first region that does not vertically overlap the cavity; a second region vertically overlapping the cavity; and a boundar...