Patent ID: 7288481

Claim:
A method of manufacturing a semiconductor device, comprising the step of preparing a concave substrate and a convex substrate; wherein said concave substrate includes a semiconductor substrate having a semiconductor circuit, a first insulation film provided to cover a main surface of said semiconductor substrate including said semiconductor circuit, and an internal interconnection provided in said first insulation film; a concave portion is provided in said first insulation film and said semiconductor substrate to extend in a direction of thicknesses of said first insulation film and said semiconductor substrate; and said convex substrate includes a temporary substrate, a conductive portion formed on said temporary substrate, and a columnar conductive portion extending in a direction perpendicular to a main surface of said temporary substrate; said method further comprising the steps of: fitting said concave substrate with said convex substrate with a fluid insulating material applied on a joint surface of at least one of said convex substrate and said concave substrate, or fitting said concave substrate with said convex substrate with a clearance left therebetween and injecting a fluid insulating material into said clearance; electrically connecting said conductive portion to said internal interconnection directly or via another member; setting said fluid insulating material to form a second insulation film; polishing a back surface of said semiconductor substrate to expose said columnar conductive portion; and removing said temporary substrate to expose said conductive portion.