Sensor element and method for manufacturing a sensor element
OwnerHans-Joerg Renz, Ingrid Gerner +3inventors
InventorsHans-Joerg Renz, Ingrid Gerner, Jens Schneider, Sabine Roesch, Sarah Richter
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Abstract
A sensor element for an exhaust gas sensor includes a ceramic base body whose surface includes at least one surface region that is electrically insulating, the sensor element including at least one flat guide structure, which is electrically conductive, along the surface region of the base body. The guide structure is partially embedded in the base body in a direction perpendicular to the surface.
Claims21
1-14. (canceled)
A sensor element for an exhaust gas sensor, the sensor element comprising:
- a ceramic base body whose surface includes a surface region that is electrically insulating;
- and
- along the surface region of the base body, at least one flat guide structure that is electrically conductive and is partially embedded in the base body in a direction perpendicular to the surface.
A method for manufacturing a sensor element, the method comprising:
- providing an unsintered ceramic precursor base body;
- applying a noble metal-containing precursor guide structure to the ceramic precursor base body in a manner by which the precursor guide structure is partially embedded in the precursor base body;
- sintering the ceramic precursor base body and the noble metal-containing precursor guide structure to form:
- a ceramic base body;
- and
- an electrically conductive guide structure of the sensor element (a) arranged along an electrically insulating surface region that is at a surface of the ceramic base body and (b) partially embedded in the base body in a direction perpendicular to the surface.
Dependencies are inferred from the claim text.