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. 19, 2014
Filed:
Jul. 15, 2009
Applicant:
Stefan Schäfer, Solingen, DE;
Inventor:
Stefan Schäfer, Solingen, DE;
Assignee:
Enthone Inc., West Haven, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/58 (2006.01); C25D 3/38 (2006.01);
U.S. Cl.
CPC ...
C25D 3/38 (2013.01); C25D 3/58 (2013.01);
Abstract
A cyanide-free electrolyte composition for the galvanic deposition of a copper layer on substrate surfaces and a method for the deposition of such layers. The electrolyte composition comprises at least copper(II) ions, a hydantoin and/or hydantoin derivative, a di- and/or tricarboxylic acid or salts thereof, and a metalate of an element of the group consisting of molybdenum, tungsten and vanadium and/or a cerium compound.