A package substrate is manufactured by electrolytically plating Au in a
semi-additive manner without using any plating lead line. Such a package
substrate includes a base substrate with a plurality of through holes, a
first copper plated layer on portions of the base substrate and inner
surfaces of the through holes, a plated pattern layer on the first copper
plated layer, wire bonding pads on the plated pattern layer at an upper
surface of the base substrate, the wire bonding pads including Au and not
connected to a remnant of a plating lead line, solder ball pads on the
plated pattern layer at a lower surface of the base substrate, the solder
ball pads including Au and not connected to a remnant of a plating lead
line, and a solder resist covering the base substrate and the plated
pattern layer.