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:
Feb. 15, 2011
Filed:
Jun. 22, 2007
Applicants:
Maria Nikolova, Waterbury, CT (US);
Gary B. Larson, Cheshire, CT (US);
Inventors:
Maria Nikolova, Waterbury, CT (US);
Gary B. Larson, Cheshire, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/38 (2006.01); H05K 3/00 (2006.01); C23C 18/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aqueous acidic copper electroplating composition containing an improved additive system for use at elevated temperatures. The improved additive system comprises (a) a suppressor comprising at least one high molecular weight polymer; (b) a brightener comprising at least one divalent sulfur compound; and (c) a leveler comprising a heterocyclic nitrogen compound. The improved electroplating composition is usable for plating through holes in printed circuit boards.