Layered heater system having conductive overlays
AssigneeWatlow Electric Manufacturing Company
InventorsElias Russegger, Gerhard Schefbanker, Martin Wallinger, Kevin Ptasienski
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a layered heater includes: applying a dielectric material on a substrate to form a dielectric layer; thermal-spraying a resistive material on the dielectric layer to form a resistive layer on the dielectric layer; forming a plurality of conductive overlays at predetermined locations on the substrate; and forming a plurality of cuts into the resistive layer by laser cutting to form a resistive circuit pattern that overlaps the conductive overlays.
Claims20
A method of manufacturing a layered heater, comprising:
- applying a dielectric material on a substrate to form a dielectric layer;
- thermally spraying a resistive material on the dielectric layer to form a resistive layer on the dielectric layer;
- forming a plurality of conductive overlays at predetermined locations on the substrate;
- and
- forming a plurality of cuts into the resistive layer by laser cutting to form a resistive circuit pattern that overlaps the conductive overlays.
A method of manufacturing a layered heater, comprising:
- applying a dielectric material on a substrate to form a dielectric layer;
- depositing a resistive material on the dielectric layer by a layered process selected from a group consisting of thick film, thin film, thermal spray, and sol gel to form a resistive layer in the form of a coating on the dielectric layer;
- forming a plurality of conductive overlays by the layered process at predetermined locations on the substrate;
- and
- forming a plurality of cuts into the resistive layer to form a resistive circuit pattern.
A method of manufacturing a layered heater, comprising:
- forming a continuous resistive layer on a substrate, the substrate defining opposing ends;
- forming a plurality of conductive overlays at predetermined locations along each of the opposing ends of the substrate;
- and
- forming a plurality of cuts into the continuous resistive layer to form a resistive circuit pattern such that the resistive circuit pattern defines a plurality of bend portions proximate the conductive overlays.
Dependencies are inferred from the claim text.