Patent ID: 7999189

Claim:
A method for fabricating a circuit board structure, comprising the steps of: providing a core board having a plurality of solder pads and conductive traces formed thereon, wherein a width of each of the solder pads is smaller than that of each of the conductive corresponds to that of each of the conductive traces, and a pitch between any two adjacent solder pads is made sufficient in width for allowing multiple conductive traces to pass therethrough; forming an insulating layer on the core board for covering the conductive traces, the insulating layer being formed with a plurality of openings for exposing the solder pads therefrom; and forming on the insulating layer a plurality of extending pads electrically connected to the solder pads respectively, wherein each of the extending pads is larger in area than a corresponding one of the solder pads and overlays a portion of the conductive traces adjacent to the solder pad underneath a corresponding one of the extending pads.