Package substrate and method of fabricating the same

摘要

There is provided a package substrate allowing for enhanced reliability by improving the structure of a solder bump and a method of fabricating the same. The package substrate includes: a substrate having at least one conductive pad; an insulating layer provided on the substrate and having an opening to expose the conductive pad; a post terminal provided on the conductive pad inside the opening; and a solder bump provided on the post terminal and having an angle between a bottom surface and a side surface thereof ranging from 80° to 120°.