Processing method for constraining lower melting point metals within ceramic laminates during sintering
AssigneeEmiSense Technologies, LLC
InventorsGangqiang Wang, Joseph Fitzpatrick, James John Steppan, Leta Yar-Li Woo, Brett Tamatea Henderson, Frank Bell
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Abstract
A method is described. The method is a method for making a constraining ceramic assembly. The method includes applying at least one metallic electrode to a substrate. The method also includes applying a porous ceramic layer to the substrate to cover the metallic electrode. The method also includes sintering the substrate, the porous ceramic layer, and the metallic electrode together at a sintering temperature above a melting point of the metallic electrode.
Claims18
A method of making a constraining ceramic assembly, the method comprising:
- forming a cavity in a substrate to facilitate flow of at least one metallic electrode during a sintering process;
- applying the at least one metallic electrode to the substrate;
- applying a porous ceramic layer to the substrate to cover the at least one metallic electrode;
- and
- sintering the substrate, the porous ceramic layer, and the at least one metallic electrode together at a sintering temperature above a melting point of the metallic electrode.
An apparatus comprising:
- a substrate;
- a porous ceramic layer;
- and
- a metallic electrode disposed between the substrate and the porous ceramic layer, wherein the metallic electrode is enclosed by the substrate and the porous ceramic layer;
- and wherein the substrate and the porous ceramic layer are sintered together with the metallic electrode enclosed, wherein the metallic electrode has a melting point lower than a sintering temperature of the substrate or the porous ceramic layer, wherein the apparatus further comprises a cavity to facilitate flow of the metallic electrode during sintering.
A system comprising:
- a sensor disposed in a gas environment, wherein the sensor is configured to detect a concentration within the gas environment, the sensor comprising:
- a substrate;
- a porous ceramic layer;
- and
- a metallic electrode disposed between the substrate and the porous ceramic layer, wherein the metallic electrode is enclosed by the substrate and the porous ceramic layer;
- and wherein the substrate and the porous ceramic layer are sintered together with the metallic electrode enclosed, wherein the metallic electrode has a melting point lower than a sintering temperature of the substrate and the porous ceramic layer, wherein the sensor further comprises a cavity to facilitate flow of the metallic electrode during sintering.
Dependencies are inferred from the claim text.