| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of suppressing an electrode part and a lead part from peeling off from a connected ceramic layer in a gas sensor element or a gas sensor.SOLUTION: A tabular gas sensor element extending in a longitudinal direction includes: a tabular composite ceramic layer 111 including an insulation part 112 having a through hole in the tip end side of the longitudinal direction and a solid electrolyte part 131 arranged in the through hole; an electrode part 156 arranged by contacting the solid electrolyte part on one main surface side of the composite celeriac layer 111; a lead part 157 which contacts the insulation part only on one main surface side of the composite ceramic layer, and of which the tip end is arranged by being held to the rear end side in the longitudinal direction of the through hole 112m, for being electrically connected to the electrode part and extending in the rear end side in the longitudinal direction. The rear end part of the electrode part is overlapped with the tip end part of the lead part on the insulation part of the one main surface side of the composite ceramic layer.SELECTED DRAWING: Figure 2 |
