Patent ID: 8878070

Claim:
A wiring board, comprising: a product formation area in which are arranged a plurality of product formation sections onto which a semiconductor chip is mounted; a molding area that is provided on an outer circumferential side of said product formation area, and which a seal portion that covers said semiconductor chips that are mounted on said product formation sections makes contact; a clamp area that is provided on an outer circumferential side of said molding area, and that is held by a molding die that forms said seal portion, said clamp area including a gate area corresponding to a gate of the molding die; wiring that is provided in said product formation area, and that is electrically connected to said semiconductor chips; a first solid pattern that is provided in said molding area, and in which a plurality of dots are arranged; and a second solid pattern that is provided in said clamp area, and in which a plurality of dots that are larger than the dots of said first solid pattern are arranged, said second solid pattern being provided at a position that is adjacent to said gate area.