Rohm & Haas Electronic Materials LLC

Rohm and Haas Electronics Materials LLC

Feng Liu

Maria Anna Rzeznik

Pyrazine derivatives which contain one or more electron donating groups on the ring are used as catalytic metal complexing agents in aqueous alkaline environments to catalyze electroless metal plating on metal clad and un-clad substrates. The catalysts are monomers and free of tin and antioxidants.

Electroless metallization of dielectrics with alkaline stable pyrazine derivative containing catalysts

Catalysts include nanoparticles of catalytic metal and cellulose or cellulose derivatives. The catalysts are used in electroless metal plating. The catalysts are free of tin.

Stable catalysts for electroless metallization

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.

Catalysts which include nanoparticles of palladium metal and cellulose derivatives are used in electroless metal plating. The palladium catalysts are free of tin.

Stable tin free catalysts for electroless metallization

Stable zero-valent metal compositions and methods of making and using these compositions are provided. Such compositions are useful as catalysts for subsequent metallization of non-conductive substrates, and are particularly useful in the manufacture of electronic devices.

Plating catalyst and method

Stable catalyst for electroless metallization

Stable tin-free palladium catalysts are used to metalize through-holes of printed circuit boards. A stabilizer is included in the catalyst formulation which prevents precipitation and agglomeration of the palladium.

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Ashland, MA, United States of America

Feng Liu