Patent ID: 7919875
Filing Date: 2011-04-05
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor die having an insulation film formed on a front surface thereof; a first wiring formed on the insulation film; a supporting body disposed on the insulation film and the first wiring; an adhesive layer attaching the supporting body to the front surface of the semiconductor die so as to cover all lateral edges of the first wiring; a recess portion formed in the semiconductor die and extending from a side of the semiconductor die horizontally with respect to the front surface and extending from a back surface of the semiconductor die vertically with respect to the front surface so as to extend into the supporting body; and a second wiring disposed in the recess portion so as to be connected to the first wiring; and a protection film disposed on the second wiring so as to be in contact with a side surface of the supporting body, wherein, in plan view of the semiconductor device, a length of the recess portion along said side of the semiconductor die is shorter than a length of the semiconductor die along said side of the semiconductor die, and in plan view of the semiconductor device a part of the first wiring is in the recess portion and not covered by the semiconductor die, and another part of the first wiring is covered by the semiconductor die.