Patent ID: 8022530

Claim:
A package substrate having an electrically connecting structure, comprising: a package substrate substance with at least a surface having a plurality of electrically connecting pads formed thereon and having an insulating protective layer, allowing the insulating protective layer to be formed on the electrically connecting pads and formed with a plurality of openings corresponding in position to the electrically connecting pads so as to expose the electrically connecting pads, respectively, wherein the package substrate substance is made of an organic or ceramic material, and the insulating protective layer is an outmost layer of the package substrate substance; and a silver metal layer provided on an exposed portion of the electrically connecting pads, walls of the openings of the insulating protective layer, and a rim portion of the insulating protective layer encircling each of the openings thereof, wherein the silver metal layer is formed with a slope toward a bottom end of each of the openings and a bottom of the silver metal layer on the bottom end of each of the openings, such that the bottom of the silver metal layer is completely lower than a top end of each of the openings of the insulating protective layer.