ALEXANDRIA, Va., July 9 -- United States Patent no. 12,356,547, issued on July 8, was assigned to SAMSUNG ELECTRO-MECHANICS Co. LTD. (Suwon-si, South Korea).
"Printed circuit board" was invented by Man Gon 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 through-hole penetrating a region between an upper surface and a lower surface of the first insulating layer; a first via disposed in at least a portion of the through-hole; a first pad connected to an upper side of the first via; and a second pad connected to a lower side of the first via. A width of the through-hole on an uppermost side is greater than a width of the firs...