ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,492, issued on March 18, 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), Ki Hee Cho (Suwon-si, South Korea) and Sang Hoon 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 metal pad including a first metal portion disposed on the first insulating layer, and a second metal portion disposed on the first metal portion and integrated with the first metal portion without a boundary therebetween, the second metal portion having a width narrower than a width of the fi...