Patent ID: 9224698
Filing Date: 2015-12-29
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate including a semiconductor substrate; an electrode formed on a surface of the semiconductor substrate; an insulation film formed on a part of a surface of the electrode; a metal film extending over a part of a surface of the electrode not covered by the insulation film and over a boundary portion of the insulation film; a solder formed on a surface of the metal film; a lead frame directly joined to the metal film by the solder; and sealing resin sealing the insulation film, the metal film, and the solder, wherein a convex is formed on the boundary portion of the insulation film, the convex having a peak at a ridge of the boundary portion of the insulation film, the metal film covering the convex, and the solder covering the metal film covering the convex.