Patent ID: 7049703
Filing Date: 2006-05-23
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first insulating film formed on a substrate; a first interconnection comprising a first laminated film formed on the first insulating film, a conductive film formed on the first laminated film and a second laminated film formed on the conductive film, wherein the first interconnection tapers toward the first laminated film; a layer of insulating film formed on the first insulating film and the first interconnection, the layer of insulating film having a through hole that exposes a top surface and a side surface of the second laminated film of the first interconnection, a side surface of the conductive film within the through hole being covered by the layer of insulating film; and a second interconnection which is formed over the layer of insulating film, wherein the second interconnection is electrically connected to the first interconnection through the through hole.