Patent ID: 8288865

Claim:
A semiconductor module comprising: an insulating resin layer; a wiring layer provided on one main surface of the insulating resin layer, and including an external connection region; bump electrodes which are electrically connected to the wiring layer, and each of which is formed so as to protrude from the wiring layer toward the insulating resin layer side; a semiconductor device which is provided on the other main surface of the insulating resin layer, and which includes device electrodes connected to the bump electrodes; and a wiring protection layer provided on the wiring layer and the insulating resin layer such that the external connection region is exposed, wherein an outer edge portion of the wiring protection layer is in contact with an outer edge portion of the semiconductor device such that at least a part of the insulating resin layer is shielded at a side edge, and a rough surface structure is provided on the face of the wiring protection layer that is in contact with the insulating resin layer in the vicinity of the outer edge portion of the wiring protection layer.