Production method for a gas sensor and corresponding gas sensor
AssigneeRobert Bosch GmbH
InventorAndreas Krauss
Life of this patent
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Abstract
A gas sensor, having: a substrate; a heatable membrane configured on a substrate front side of the substrate; at least three electrodes disposed on a membrane surface of the membrane; a first coating configured on an area of the membrane surface, at least two of the at least three electrodes contacting the first coating; a second coating configured on the first coating and on an area of the membrane surface, at least two of the at least three electrodes contacting the second coating, and at least one of the at least two electrodes that contact the second coating being different from the at least two electrodes that contact the first coating.
Claims7
A gas sensor, comprising:
- a substrate;
- a heatable membrane configured on a substrate front side of the substrate;
- at least three electrodes disposed on a membrane surface of the membrane;
- a first coating configured on an area of the membrane surface, at least two of the at least three electrodes being in direct contact with the first coating;
- a second coating configured at least in part on the first coating and on an area of the membrane surface, at least two of the at least three electrodes being in direct contact with the second coating, and at least one of the at least two electrodes that are in direct contact with the second coating being different from the at least two electrodes that are in direct contact with the first coating;
- wherein the first coating and the second coating are of circular configuration, the second coating completely covering the first coating;
- wherein at least one of the at least two electrodes that are in direct contact with the first coating is not in direct contact with the second coating.
Dependencies are inferred from the claim text.