Patent ID: 8776597

Claim:
A capacitive type humidity sensor, comprising: a sensor chip substrate provided with a sensor section where electrostatic capacitance changes in accordance with humidity, a reference section where electrostatic capacitance does not change depending on humidity, and a plurality of pads which are output terminals of the sensor section and the reference section, and an IC substrate, which is electrically connected to the plurality of pads via a conductive wire and which converts the difference in capacitance between the sensor section and the reference section into a voltage and outputs the voltage, are adhered and fixed to the same support substrate, a protective member, which forms a sealed region surrounding the sensor section and covers the reference section, provided on the sensor chip substrate, the support substrate being covered by a sealing resin except for the region which is covered by the protective member, the sensor section being exposed to air at the region which is surrounded by the protective member, and the pads, the conductive wire, and the IC substrate are covered by the sealing resin.