Patent ID: 7180194
Filing Date: 2007-02-20
Classification: H01L,Y10S

Abstract:
1. A semiconductor device, comprising: a semiconductor substrate; a resin layer having opposite first and second surfaces, the first surface formed on one surface of the substrate; and a projection electrode formed on the one surface of the semiconductor substrate, the projection electrode projecting through the resin layer and having a summit exposed from the second surface of the resin layer; wherein the substrate and the resin layer have, as cut surfaces, side surfaces at least one surface of which is a multi-staged cut surface obtained by cutting twice or more, the multi-staged cut surface including two cut surfaces and a step formed at a boundary between the two cut surfaces, the substrate having an other surface opposite the one surface; and wherein the two cut surfaces include a resin layer side surface and a substrate side surface, the resin layer side surface bounds the resin layer and a first portion of the substrate contacting the resin layer, the substrate side surface (i) bounds only a second portion of the substrate spaced from the resin layer and (ii) projects outwardly of the resin layer side surface, and the substrate side surface is closer to the other surface than is the resin layer side surface.