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US 8,652,649 B2Granted
Coated articles and methods
AssigneeXtalic Corporation
InventorsJohn Cahalen, Alan C. Lund, Christopher A. Schuh
Life of this patent
Estimating the term…
Abstract
Coated articles and methods for applying coatings are described. In some cases, the coating can exhibit desirable properties and characteristics such as durability, corrosion resistance, and high conductivity. The articles may be coated, for example, using an electrodeposition process.
Claims24
An article, comprising:
- a base material comprising copper;
- a coating formed on the base material, the coating comprising:
- a first layer comprising Ni, and W and/or Mo, wherein the first layer has a thickness of greater than 5 microinches, and the first layer is nanocrystalline or amorphous;
- and
- a second layer formed on the first layer, the second layer comprising Au, wherein the second layer has a thickness of less than 30 microinches, and the second layer is nanocrystalline or amorphous,
- wherein the coating has a low level contact resistance less than about 10 mOhm after exposure to mixed flowing gas for 5 days according to ASTM B0845, protocol Class IIa.
3 more elements
An article, comprising:
- a base material comprising copper;
- a coating formed on the base material, the coating comprising:
- a first layer comprising Ni, and W and/or Mo, wherein the first layer has a thickness of greater than 5 microinches, wherein the first layer is electrodeposited using a waveform having a forward pulse and a reverse pulse, and the first layer is nanocrystalline or amorphous;
- and
- a second layer formed on the first layer, the second layer comprising Au, wherein the second layer has a thickness of less than 30 microinches and the second layer is nanocrystalline or amorphous.
2 more elements
Dependencies are inferred from the claim text.