Patent ID: 8773583
Filing Date: 2014-07-08
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first semiconductor chip having a solid-state imaging section formed at least on one surface of the first semiconductor chip, the first semiconductor chip having a first connecting section formed on a same surface as the surface of formation of said solid-state imaging section; a second semiconductor chip having a second connecting section formed on one surface of the second semiconductor chip, the second semiconductor chip being mounted on said first semiconductor chip with said first connecting section and said second connecting section connected to each other by a bump; a dam formed so as to fill a gap between said first semiconductor chip and said second semiconductor chip on at least a part of an outer edge of said second semiconductor chip, the part of the outer edge of said second semiconductor chip being on a side of a region of formation of said solid-state imaging section; a bump section formed on the first semiconductor chip, wherein the bump section and the dam together form a ring shape; and an underfill resin layer provided in the gap between said first semiconductor chip and said second semiconductor chip such that a protrusion of the underfill resin layer from the outer edge of said second semiconductor chip to a side of said solid-state imaging section is prevented by said dam, wherein the underfill resin layer includes a fillet located within an area formed by the ring shape.