The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2018
Filed:
Sep. 04, 2014
Applicant:
Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);
Inventors:
Feng Liu, Marlborough, MA (US);
Maria Rzeznik, Marlborough, MA (US);
Assignee:
Rohm and Haas Electronic Materials LLC, Marlborough, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 18/40 (2006.01); H05K 3/18 (2006.01); C23C 18/30 (2006.01); C23C 18/34 (2006.01); C23C 18/50 (2006.01); C23C 18/16 (2006.01); B01J 31/22 (2006.01);
U.S. Cl.
CPC ...
H05K 3/181 (2013.01); B01J 31/2295 (2013.01); C23C 18/166 (2013.01); C23C 18/1641 (2013.01); C23C 18/30 (2013.01); C23C 18/34 (2013.01); C23C 18/40 (2013.01); C23C 18/50 (2013.01); B01J 2231/005 (2013.01); B01J 2531/824 (2013.01);
Abstract
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.