Sensor and methods of making the same
AssigneeSensorcon, Inc.
InventorsMark Wagner, Jin Zou
Life of this patent
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Abstract
This disclosure relates to an improved electrochemical sensor that has a simplified electrode assembly. The electrode assembly incorporates electrodes into or onto a single polymeric substrate. The working electrode can be porous, to enable an analyte, such as a toxic gas, to access an electrode-electrolyte interface. Ionic connection between electrodes can be made by an electrolyte on a back side of the electrode assembly, and external electronic circuitry can be connected directly to the electrode assembly. This construction dramatically simplifies the sensor, resulting in reduced costs and potentially improved performance. The construction is compatible with batch fabrication methods.
Claims26
An electrode assembly, comprising:
- a first electrode comprising a first solid, continuous conductive material, and
- a second electrode comprising a second solid, continuous conductive material,
- wherein the first and second electrodes are carried by an insulating substrate comprising a polymeric material.
2-5. (canceled)
9-17. (canceled)
(canceled)
A sensor comprising:
- an electrode assembly comprising
- a first electrode comprising a first solid, continuous conductive material;
- and
- a second electrode comprising a second solid, continuous conductive material,
- wherein the first and second electrodes are carried by an insulating substrate comprising a polymeric material;
- and
- an electrolyte in chemical communication with both the first and second electrodes.
(canceled)
A method of making an electrode assembly, the method comprising:
- selecting a pre-form comprising a solid, continuous conductive material, the pre-form comprising a plurality of device regions spaced apart in a first direction and spanning the pre-form in a second direction, each device region comprising two or more pre-electrode regions spaced apart in the first direction and extending across the pre-form in the second direction, wherein the two or more pre-electrode regions are in electrical communication;
- and
- forming an insulating material comprising a polymeric material about each device region in a manner that the insulating material fills a spacing defined in the first direction between the two or more pre-electrode regions to provide an assembly.
29-31. (canceled)
34-58. (canceled)
Dependencies are inferred from the claim text.