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US 7,842,636 B2Granted
Catalyst composition and deposition method
AssigneeRohm and Haas Electronic Materials LLC
InventorsPeter R. Levey, Nathaniel E. Brese
Life of this patent
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Abstract
Compositions and methods for depositing one or more metal or metal alloy films on substrates. The compositions contain a catalyst, one or more carrier particles and one or more water-soluble or water-dispersible organic compounds. Metal or metal alloys may be deposited on the substrates by electroless or electrolytic deposition.
Claims13
A method comprising:
- a) applying a catalytic composition to a substrate, the catalytic composition comprises a catalyst comprising a hydrous metal oxide or hydroxide of a catalytic metal, one or more carriers having average particle sizes of from 5 nm to 900 nm and one or more aqueous based polyurethane compositions, the one or more aqueous based polyurethane compositions compose from 5 wt % to 60 wt % of the catalytic composition, the one or more carriers are included in the composition in amounts of 55 to 330 times a weight of the catalytic metal, the composition is free of organic solvents;
- and
- b) depositing a metal or metal alloy on the substrate with the catalytic composition.
Dependencies are inferred from the claim text.