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:
Mar. 27, 2012
Filed:
Aug. 03, 2011
Applicants:
Andre Egli, Reiden, CH;
Wing Kwong Wong, Tuen Mun, HK;
Raymund W. M. Kwok, Kowloon, HK;
Jochen Heber, Neuenbuerg, DE;
Inventors:
Andre Egli, Reiden, CH;
Wing Kwong Wong, Tuen Mun, HK;
Raymund W. M. Kwok, Kowloon, HK;
Jochen Heber, Neuenbuerg, DE;
Assignee:
Rohm and Haas Electronic Materials LLC, Marlborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 5/18 (2006.01); C25D 3/58 (2006.01); C25D 3/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
Compositions and methods for depositing gold alloys are disclosed. The compositions include certain dithiocarboxylic acids, salts and esters thereof and mercapto group containing compounds which provide bright gold alloy deposits with uniform color.