Electroless Nickel Electroless Palladium Immersion Gold as a pcb finish is for high reliability gold wire bonding, electroless Nickel/Immersion gold can be used for lower end consumer products, however it is not as reliable ENEPIG.


Palladium Prevents Nickel from Passivating in the Presence of the “Porous”Gold Deposit
Aluminum Wire Bondable
Planar Surface
Good for Fine Pitch Product
X – Additional Process Step for PCB
Fabricator; Added Cost Results
X – Evidence that Palladium Poisons the
Solder Paste after Reflow
X – Waste Treatment
X – Expensive