Patent ID: 6937480
Filing Date: 2005-08-30
Classification: H05K

Abstract:
1. A printed wiring board in which a signal wire layer having a signal wire wired therein, and a first ground layer and a second ground layer which form ground regions, are laminated via respective insulating layers, the printed wiring board comprising: a plurality of interlayer connecting members electrically connecting the ground region formed by the first ground layer and the ground region formed by the second ground layer; and a power source wire wired at at least one of the first ground layer and the second ground layer, wherein the signal wire and the power source wire, which is provided at a signal wire side ground layer, are disposed such that the power source wire and a projected line of the signal wire onto the ground layer cross, and the plurality of interlayer connecting members are disposed in vicinities of both sides of the power source wire.