Patent ID: 8215832

Claim:
An infrared sensor, comprising: a first element including a temperature detecting unit that outputs a signal corresponding to a temperature to which the temperature detecting unit has risen from an ambient temperature in response to an infrared ray that has entered the temperature detecting unit, the first element being formed above a substrate; a second element including a temperature detecting unit that outputs a signal corresponding to the ambient temperature, the second element being formed on the substrate; and a signal correcting unit that corrects the signal output by the temperature detecting unit of the first element based on the signal output by the temperature detecting unit of the second element, wherein: the temperature detecting unit of the first element and the substrate are disposed to have a clearance therebetween, a sacrifice layer that is made of diamond like carbon is formed between the temperature detecting unit of the second element and the substrate, the first element includes a support member that holds up the temperature detecting unit, the second element includes a support member that has a same structure as that of the support member of the first element, the support member being embedded in the sacrifice layer, the support member of each of the first element and the second element has a columnar shape and has an opening extending thereinside from the temperature detecting unit to the substrate, the opening being embedded with a metal, a signal output by the temperature detecting unit of the first element is transferred to the signal correcting unit via the metal that is embedded in the opening in the support member of the first element, and a signal output by the temperature detecting unit of the second element is transferred to the signal correcting unit via the metal that is embedded in the opening in the support member of the second element.