ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,224,235, issued on Feb. 11, was assigned to SAMSUNG ELECTRO-MECHANICS Co. LTD. (Suwon-si, South Korea).
"Printed circuit board" was invented by Chan Hoon Ko (Suwon-si, South Korea), Sang Hoon Kim (Suwon-si, South Korea), Yoong Oh (Suwon-si, South Korea) and Hea Sung Kim (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A printed circuit board includes a first insulating layer; a pad disposed on the insulating layer and having a protrusion; and a protective layer disposed on the insulating layer and having an opening exposing at least a portion of the pad. The protrusion protrudes from one surface of the pad and is buried in at least ...