Continuous coils containing a thin anodized film layer and systems and methods for making the same
AssigneeNovelis Inc.
InventorsMichael Jackson Bull, Jonathan Ball, Dewei Zhu, Venkatesh Sundaram, Thomas J. Beck, Kevin Mark Johnson
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Abstract
Described herein are anodized continuous coils containing a thin anodized film layer and systems and methods for making and using the same. The anodized continuous coils include an aluminum alloy continuous coil, wherein a surface of the aluminum alloy continuous coil comprises a thin anodized film layer and a chemical additive layer. The thin anodized film layer can be a dielectric for electronic device applications.
Claims20
An anodized continuous coil, comprising:
- an aluminum alloy continuous coil, wherein a surface of the aluminum alloy continuous coil comprises a thin anodized film layer and a chemical additive layer.
A method of making an anodized continuous coil, comprising:
- providing a metal continuous coil, wherein the metal continuous coil is processed in a metal processing line having a preselected line speed;
- etching a surface of an aluminum alloy continuous coil with an acidic solution;
- anodizing the surface of the aluminum alloy continuous coil in an electrolyte to form a thin anodized film layer, wherein anodizing parameters are tailored to the preselected line speed of the metal processing line;
- and
- applying a chemical additive to the thin anodized film layer to form a chemical additive layer.
An electronic device substrate, comprising:
- an aluminum alloy continuous coil;
- and
- a thin anodized film layer,
- wherein the thin anodized film layer is configured to provide semiconductive properties to the aluminum alloy continuous coil, and
- wherein the thin anodized film layer is positioned on an area of a surface of the aluminum alloy continuous coil.
Dependencies are inferred from the claim text.