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:
Aug. 18, 2009
Filed:
Apr. 05, 2006
Applicants:
James Watkowski, Middlebury, CT (US);
Maria Nikolova, Waterbury, CT (US);
Inventors:
James Watkowski, Middlebury, CT (US);
Maria Nikolova, Waterbury, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D 3/38 (2006.01); C25D 5/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrolytic copper plating process comprising two steps is proposed. The process is particularly suited to plating in very confined spaces. The first step comprises a pre-treatment solution comprising an anti-suppressor that comprises a sulfur containing organic compound, preferably incorporating an alkane sulfonate group or groups and/or an alkane sulfonic acid. The second step comprises an electrolytic copper plating solution based on an alkane sulfonic acid.