High phosphorus electroless nickel

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United States of America Patent

PATENT NO 9708693
APP PUB NO 20150345026A1
SERIAL NO

14294437

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
CITIBANK N A388 GREENWICH STREET NEW YORK NY 10013

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Janik, Robert Pinckney, US 5 15
Micyus, Nicole J South Lyon, US 6 10

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