Patent ID: 8547705
Filing Date: 2013-10-01
Classification: H01L

Abstract:
1. A semiconductor device comprising: a wiring substrate; a semiconductor chip fixedly attached to a first surface of the wiring substrate; a power supply pad that is provided on a second surface opposite to the first surface of the wiring substrate, and supplies electric power to the wiring substrate; a ground pad that is provided on the second surface of the wiring substrate and grounds the wiring substrate; a power supply-side reinforcing member that is connected to the power supply pad and made of metal; a ground-side reinforcing member that is connected to the ground pad and made of metal; and an insulating part that insulates the power supply-side reinforcing member and the ground-side reinforcing member from each other, wherein the power supply-side reinforcing member and the ground-side reinforcing member respectively have a power supply-side facing surface and a ground-side facing surface which face each other; a protruding part is provided at one of the power supply-side facing surface and the ground-side facing surface, and protrudes toward the other facing surface; and a recessed part engaged with the protruding part via the insulating part is provided at the other facing surface.