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:
May. 09, 2023
Filed:
Feb. 02, 2022
Applicant:
Macdermid Enthone Inc., Waterbury, CT (US);
Inventors:
Fengting Xu, Bethany, CT (US);
Jean W. Chevalier, Waterbury, CT (US);
Ernest Long, Burlington, CT (US);
Richard A. Bellemare, Watertown, CT (US);
Michael M. Ryl, Juechen, DE;
Assignee:
MacDermid Enthone Inc., Waterbury, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/64 (2006.01); C25D 3/32 (2006.01); C25D 3/12 (2006.01); C25D 3/46 (2006.01); C25D 5/12 (2006.01); H01R 43/26 (2006.01);
U.S. Cl.
CPC ...
C25D 3/46 (2013.01); C25D 3/32 (2013.01); C25D 3/64 (2013.01); C25D 5/12 (2013.01); H01R 43/26 (2013.01);
Abstract
An electroplating bath for depositing a silver/tin alloy on a substrate. The electroplating bath comprises (a) a source of tin ions; (b) a source of silver ions; (c) an acid; (d) a first complexing agent; (e) a second complexing agent, wherein the second complexing agent is selected from the group consisting of allyl thioureas, aryl thioureas, and alkyl thioureas, and combinations thereof; and (f) optionally, a wetting agent, and (g) optionally, an antioxidant.