Patent ID: 7586181
Filing Date: 2009-09-08
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a substrate having a peripheral portion and a central portion inward of the peripheral portion; a plurality of electrode pads disposed in the peripheral portion of the substrate; an interlayer film disposed over the central and peripheral portions of the substrate, the interlayer film having openings over the peripheral portion of the substrate to expose the electrode pads, the interlayer film additionally having a first region and a second region over the central portion of the substrate, the first region having a substantially uniform thickness; a redistribution conductor having an outer end that is connected to one of the electrode pads and an inner end that is disposed on the first region of the interlayer film; a bump on the redistribution conductor adjacent its inner end; and a sealing film that is disposed over the interlayer film but exposes an upper end of the bump, wherein the second region of the interlayer film has a trench that passes adjacent the bump and is spaced apart from all of the openings over the peripheral portion of the substrate, and wherein the sealing film contacts the trench and is thicker over the trench than over the first region of the interlayer film.