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:
Apr. 30, 2019
Filed:
Jan. 20, 2013
Applicant:
Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);
Inventor:
Peter R. Levey, Northborough, MA (US);
Assignee:
Rohm and Haas Electronic Materials LLC, Marlborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 9/02 (2006.01); B23K 35/36 (2006.01); B23K 35/362 (2006.01); C23C 2/08 (2006.01); C23C 2/26 (2006.01); C23C 2/30 (2006.01); C25D 3/32 (2006.01); C25D 3/60 (2006.01); B23K 35/26 (2006.01); B23K 35/02 (2006.01); B23K 1/20 (2006.01); C25D 5/50 (2006.01);
U.S. Cl.
CPC ...
C25D 9/02 (2013.01); B23K 1/203 (2013.01); B23K 35/0233 (2013.01); B23K 35/262 (2013.01); B23K 35/362 (2013.01); B23K 35/3618 (2013.01); C23C 2/08 (2013.01); C23C 2/26 (2013.01); C23C 2/30 (2013.01); C25D 3/32 (2013.01); C25D 3/60 (2013.01); C25D 5/505 (2013.01);
Abstract
A flux composition which includes one or more organic compounds including one or more sulfonic acid groups, salts or anhydrides thereof is applied to tin or tin alloy deposits. The flux composition is then homogenized on the tin or tin alloy to inhibit tin or tin alloy oxidation and improve brightness of the tin or tin alloy.