GAS-SENSITIVE THICK-FILM SENSOR Russian patent published in 1997 - IPC

FIELD: analytical methods. SUBSTANCE: sensor contains substrate with, applied onto one of its sides, heating layer of resistive composite material consisting of ruthenium dioxide (basis) and glass binder, current contact jaws, and bond areas for heating layer. The other side of substrate is coated by semiconductor gas-sensitive layer, current contact jaws, and bond areas for gas-sensitive layer. As glass binder, glass containing alkali-earth metal borosilicate with tin oxide added is utilized. Current contact jaws can be attached to bond areas by the aid of fastening members, bond areas and fastening members are made of material having the same element composition as heating layer but higher ruthenium oxide content. EFFECT: increased sensitivity. 2 cl, 1 dwg