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US 7,069,651 B2Granted
Abrasion resistant electrode and device
Assignee3M Innovative Properties Company
InventorsPaul D. Graham, Douglas A. Huntley
Life of this patent
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Abstract
The invention provides abrasion resistant electrodes that comprise metal-coated conductive valleys between protrusions having a fractured metal coating thereon; electrical devices made from a plurality of said electrodes; and methods of making said devices.
Claims8
A method of making an electrical device, the method comprising the steps of:
- providing a metal-coated thermoplastic polymer substrate, wherein the metal coating has a thickness of from about 200 angstroms to about 2 millimeters;
- contacting the metal-coated polymeric substrate with an embossing tool comprising a material having an engineering strain of less than 10%;
- heating the polymeric substrate to a temperature above its melting point or glass transition temperature;
- and
- applying sufficient pressure to the metal-coated substrate such that the metal-coated substrate substantially flows into the depressed portions of the tool, wherein the final electrical device is made without removing metal coating from protrusions of the electrical device.
2 more elements
Dependencies are inferred from the claim text.