Patent ID: 7544940

Claim:
A semiconductor device comprising: a semiconductor substrate; at least one sensor element made of vanadium oxide formed over said semiconductor substrate, said sensor element being designed so that a density of a current flowing through said sensor element is between 0 to 100 μA/μm 2 , a multi-layer interconnection layer formed on said semiconductor substrate; a logic circuit formed in said semiconductor substrate and said multi-layer interconnection layer; and an insulating layer formed on said multi-layer interconnection layer in contact with an uppermost conductive layer thereof, said sensor element being formed on said insulating layer, at least a part of said sensor element being in contact with said insulating layer, wherein said sensor element is configured so that a resistance of said sensor element is changed in accordance with an ambient temperature of said device, and wherein said sensor element is configured so that a resistance of said sensor element is changed in accordance with heat generated from said device.