NIPHOS® 965 Nickel-Phosphorus Electrolyte for Connectors

Coating system for connectors

With NIPHOS® 965 nickel-phosphorus alloy layers can be deposited in reel-to-reel electroplating systems or other high speed systems. In comparison to high-phosphorus containing electroless nickel layers, nickel-phosphorus layers produced by electrolytes are amorphous, diamagnetic, abrasion and corrosion resistant as well.

It is possible to work with soluble anodes (nickel), insoluble anodes (platinum-plated titanium or MMO) or a combination of both.  The lifetime is almost unlimited and corresponds to the one of bright nickel electrolytes.

NIPHOS® is insensitive to contaminations with metallic particles. In contrary to electroless nickel it does not tend to random plating. Also the electrolytes are free from halides and contain no other heavy metals such as lead or cadmium, besides nickel.

NIPHOS® 965 is chloride-free and pH-stable during operation. The phosphorus content of the coatings is 6 - 12 %. The hardness of the layers is 550 HV 0.05 as plated without heat treatment. NIPHOS® 965 coatings are applied prior to hard-gold plating (e.g. AURUNA® 8100) of contact surfaces.

Electrolyte characteristics

Electrolyte type

Acidic

Metal content

100 (80 - 120) g/l Ni
30 (27 - 33) g/l P

pH value

Alkaline

Operating temperature

RT (20 - 45) °C

Current density range

0.5 - 5 A/dm²

Plating speed

2 μm/min bei 20 A/dm²

Anode material

Nickel (type S) or Pt-Ti, MMO (type PLATINODE® 177)

Coating characteristics

Coating

Nickel-phoshporus

Alloy composition

88 - 94 wt.% Ni
6 - 12 wt.% P

Colour of deposit

Steel-grey

Brightness

Bright

Hardness

550 - 600 HV

Advantages

  • Savings on precious metals
  • For electrolytic deposition of nickel-phosphorus alloy layers
  • Content of phosphorus 6 - 12 %
  • Application as intermediate layer prior to hard-gold plating of contact surfaces
  • Used as a diffusion barrier between nickel and tin layers in reflow applications
  • Chloride-free
  • pH-stable
  • Application in reel-to-reel lines

Applications

  • Connectors
  • Smartcards
  • Leadframes

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Questions about the product?

Markus Legeler

+49 7171 607 204

For inquiries and additional information
please contact

Umicore AG & Co. KG
Rodenbacher Chaussee 4
63457 Hanau-Wolfgang
Germany

Tel.: +49 (6181) 59 6005
Fax: +49 (6181) 59 2970
Email: chemistry@umicore.com
Website: www.chemistry.umicore.com

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