Pillsbury Winthrop LLP
Gas sensor with ceramic heater
A ceramic heater that may be used in an oxygen sensor for automotive air-fuel ratio control systems and includes a ceramic square rod formed with a laminate of a heater substrate on which a heater-patterned layer consisting of a heater element and leads is formed and a covering substrate covering the heater-patterned layer. Metallic terminals are connected electrically to the leads of the heater-patterned layer, respectively, and mounted on surfaces of the ceramic square rod opposed to each other in a direction of lamination of the heater substrate and the covering substrate, respectively. At least one outer lead is joined to one of the metallic terminals through a bonding layer.
Denso Corporation
G
G01N
inventional
Hirokazu
Yamada