(Enig = electroless nickel gold)

Chemical Nickel-Gold

Since early 1990s the alloy surface (nickel / phosphorus & gold) is one of the most versatile surfaces. In this method, a nickel layer forms the diffusion barrier between copper and solder alloy. The gold is dissolved in the solder joint and the liability / IMC formation is done with the nickel layer. Electroless nickel-gold requires an upstream copper activation to start the nickel deposition. The nickel layer increases mechanical vias and increases the abrasion resistance.

layer thickness: 3 - 6 μm NiP and 0.05 - 0.12 μm Au

 

storage time: 12 Months

 

low / medium / high P systems : (<7; 7-10; >10 % P)

 

Layer properties

  • low / medium / high P systems (<7, 7-10;> 10% P)
  • Layerthickness 3 - 6μm NiP and 0.05-0.12μm Au
  • Autocatalytic nickel deposition
  • Gold protects nickel from oxidation
  • Reliable multi-functional surface
  • suitable for Al-wire bonding
  • Growth of the nickel-phosphorus layer of activated copper

Equipment

Compacta 30 chem. Nickel-Gold
This machine can perform nickel and gold plating for printed circuit boards up to a size of 200x300mm. 5 PVC tanks, 2 PP tanks all about 10 liters, 3 Teflon radiators all with thermostatic, 5 Digital Timer, bath movement (adjustable), all tanks with ball valve drain. spray rinse with foot switch, flushing pressure adjustable. Stand-alone machine. Connection: 230 V

Advantages

  • Suitable for multiple Pb-free soldering
  • Planarity for SMT
  • Diffusion barrier (nickel), prevents the solution of copper in the solder
  • Long storage time (12 months), excellent resistance against ageing
  • E-Test Compatible
  • Suitable for contact switches
  • Good resistance in corrosive environments
  • Suitable for AL-wire bonding
  • Suitable for high aspect ratio boards

Options

Compacta 40 chem. Nickel-gold, Nickel and gold plating plant for printed circuit boards up to a size of 300 x 400mm.

Surfaces

Bungard Elektronik GmbH & Co.KG

Rilkestrasse 1
D-51570 Windeck

+49 2292 / 9 28 28 - 29

We use cookies

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.