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:
Dec. 08, 2020
Filed:
Oct. 19, 2015
Applicant:
Atotech Deutschland Gmbh, Berlin, DE;
Inventors:
Michal Kaczmarek, Trebur, DE;
Antje Richter, Mainz, DE;
Lukas Bedrnik, Trebur-Astheim, DE;
Eric Sibürge, Trebur-Astheim, DE;
Assignee:
Atotech Deutschland GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/56 (2006.01); C25D 3/22 (2006.01);
U.S. Cl.
CPC ...
C25D 3/22 (2013.01); C25D 3/565 (2013.01);
Abstract
The present invention relates to an acidic zinc or zinc-nickel alloy plating bath composition comprising a source for zinc ions, optionally a source for nickel ions, a source for chloride ions and at least one dithiocarbamyl alkyl sulfonic acid or salt thereof. Said plating bath composition and the corresponding plating method result in zinc or zinc-nickel alloy layers having an improved throwing power and thickness distribution, particularly when plating substrates having a complex shape and/or in rack-and-barrel plating.