INFRARED RADIATION ELEMENT AND PRODUCTION METHOD FOR SAME

摘要

Infrared radiation device and production method, capable of preventing electrode degradation by heat are provided. Infrared radiation device (1) includes substrate (11), insulation layer (12), heat generating layer (13), electrode (15), foundation portion (17) and electric conductor (16). Substrate (11) has cavity (110) exposing part of back surface of insulation layer (12). Foundation portion (17) exists on inside and outside of vertical projection area (projection direction of which is along thickness direction of insulation layer (12)) of opening edge, on surface of substrate (11), of cavity (110). Electric conductor (16) is provided on surface of foundation portion (17). End of heat generating layer (13) is provided as covering (18) covering electric conductor (16). Electrode (15) is in contact with surface of covering (18) outside vertical projection area. Conductor (16) has higher melting point than that of electrode (15) and smaller electrical resistance than those of portion (17) and layer (13).