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US 2014/0272144 A1Published application
Stable catalysts for electroless metallization
AssigneeRohm and Haas Electronic Materials LLC
InventorsFeng LIU, Maria Anna RZEZNIK
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Abstract
Aqueous catalysts of nanoparticles of precious metals and stabilizers of flavonoid derivatives are used to electrolessly plate metal on non-conductive substrates. Such substrates include printed circuit boards.
Claims7
An aqueous catalyst solution comprising one or more reducing agents and nanoparticles comprising one or more precious metals and one or more flavonoid glycosdies and hydrates thereof.
A method comprising:
- a. providing a substrate;
- b. applying an aqueous catalyst solution to the substrate, the aqueous catalyst solution comprises one or more reducing agents and nanoparticles comprising one or more precious metals and one or more flavonoid glycosides and hydrates;
- and
- c. electrolessly depositing metal onto the substrate using an electroless metal plating bath.
1 more element
Dependencies are inferred from the claim text.