Patent ID: 7830011

Claim:
A semiconductor device comprising: a semiconductor chip, having a rectangular shape; a plurality of connection pads formed on a surface of the semiconductor chip; at least one heat-dissipation pad formed on the surface of the semiconductor chip in proximity to a heating portion of the semiconductor chip; a first insulating layer formed to cover the surface of the semiconductor chip except prescribed regions corresponding to the connection pads and the at least one heat-dissipation pad; a plurality of connection electrodes arranged on the surface of the semiconductor device so as to establish electric connections with an external device; at least one heat-dissipation electrode arranged on the surface of the semiconductor device and connected with the external device; a first wiring portion formed on a surface of the first insulating layer to establish electric connections between the connection pads and the connection electrodes; a second wiring portion formed on the surface of the first insulating layer to establish connection between the at least one heat-dissipation pad and the heat-dissipation electrode, wherein the second wiring portion covers the surface of the first insulating layer except a prescribed area corresponding to the first wiring portion; a second insulating layer enclosing the first wiring portion and the second wiring portion in such a way that the connection electrodes and the at least one heat-dissipation electrode are exposed on the surface of the semiconductor device; and at least one engagement portion that establishes mutual engagement between the second wiring portion and the second insulating layer.