Patent ID: 8294247

Claim:
A high-power device, comprising: a heating element; a thermocouple formed adjacent to the heating element; a dielectric body formed between the heating element and the thermocouple; wherein the thermocouple includes first and second thin films made of two kinds of metals and alloys; wherein one end of each the first and the second thin films are joined to each other to form a hot junction; a via contact connected to the thermocouple; and a pad for connecting the via contact to an external lead frame; wherein, a temperature difference of two sides of the hot junction in the first and the second thin films of the thermocouple causes a thermoelectromotive force to be generated between the two sides of the hot junction by a seebeck effect, a thermal current flows according to the thermoelectromotive force, such that a temperature of the high-power device is measured by measuring the thermal current; wherein the thermoelectromotive force is determined by a temperature difference between the two sides of the hot junction; and wherein the measured thermoelectromotive force is proportional to the temperature.