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.

Date of Patent:
Jul. 18, 2017

Filed:

Jun. 03, 2014
Applicant:

Macdermid Acumen, Inc., Waterbury, CT (US);

Inventors:

Robert Janik, Pinckney, MI (US);

Nicole J. Micyus, South Lyon, MI (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 18/36 (2006.01); C23C 18/32 (2006.01); C22C 19/03 (2006.01);
U.S. Cl.
CPC ...
C22C 19/03 (2013.01); C23C 18/36 (2013.01);
Abstract

An electroless nickel plating bath comprising: i) a source of nickel ions; ii) an effective amount of thiourea; iii) an effective amount of saccharin; iv) a source of hypophosphite ions; v) one or more chelating agents; and vi) optionally, other additives and a method of using the same to provide a high phosphorus electroless nickel plating deposit on a substrate. The high phosphorus electroless nickel deposit is capable of passing an RCA nitric acid test, whereby the substrate with the high phosphorus nickel deposit thereon is immersed into concentrated nickel acid for 30 seconds and a deposit that does not turn black or grey is deemed to have passed the RCA nitric acid test.


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