CONTACT COMBUSTION TYPE GAS SENSOR AND MANUFACTURING METHOD OF CONTACT COMBUSTION TYPE GAS SENSOR

PROBLEM TO BE SOLVED: To provide a gas sensor preventing deterioration of functions due to aging. SOLUTION: The contact combustion type gas sensor 1 includes a substrate 10, a sensing resistance 22 arranged on the substrate 10 and having a resistance value varied in accordance with combustion heat of sensing target gas burned by the heat generated by supply of the electric current, and a catalyst layer 24 arranged to transmit the heat between the sensing resistance 22 and it and having a catalyst promoting combustion of the sensing target gas, and further includes an opening 11 formed on the substrate 10, and a resistance support part 21 having the sensing resistance 22 on the surface and positioning the sensing resistance 22 in the opening part 11 while separating the sensing resistance 22 from the substrate 10. The catalyst layer 24 is continuously arranged from the front surface to the rear surface of the resistance support part 21 so as to cover the surface and an end of the sensing resistance 22 and the resistance support part 21. COPYRIGHT: (C)2009,JPO&INPIT