Patent ID: 7379307

Claim:
A wiring board, comprising: an insulating base; a plurality of conductive wirings provided on the insulating base; and bumps formed on the plurality of conductive wirings, respectively, wherein the plurality of conductive wirings can be connected with electrode pads of a semiconductor element to be mounted via the bumps, and the plurality of conductive wirings include a connection terminal portion at an end portion opposite to the other end portion where the bumps are formed, and at the connection terminal portion, the conductive wirings can be connected with an external component, wherein the plurality of conductive wirings comprise first conductive wirings and second conductive wirings, on which the bumps are formed respectively at a semiconductor element mounting region on which the semiconductor element is to be mounted, the first conductive wirings extend from the bumps to the connection terminal portion for connection with the external component, the second conductive wirings extend beyond the semiconductor element mounting region from the bumps but do not reach the connection terminal portion, and end portions of the second conductive wirings extending beyond the semiconductor element mounting region are separated electrically from the first conductive wirings by a cutting portion formed at a boundary region with the first conductive wirings.