Robert,

Is this nickel electroless or electrolytic deposited?

Nickel is very brittle and oxidizes quite rapidly. I would think
cracking and a build up of oxides knocked loose by the pins (leading to
intermittent operation) would be a major concern.

David A. Douthit
Manager
LoCan LLC

Robert Lazzara wrote:

>I am fabricating a PCB that requires selective electro-deposited nickel on
>contact pads.
>
>The nickel-plated pads are subsequently mechanically contacted by spring-
>loaded "pogo" pins.
>
>The actual fabrication is not an issue; rather, my client has asked a
>question I've so-far not been able to answer: What is the wear performance
>of nickel?
>
>I'm seeking general relative information on the wear characteristics of
>nickel (versus, say, copper or tin/lead solder) instead of the specific
>performance in my client's application.
>
>So-far I've reviewed an abundance of information concerning the conformance
>of nickel, but not performance as regards wear resistance.
>
>Any and all references/suggestions will be appreciated.
>
>Robert Lazzara
>Circuit Connect, Inc.
>T (800) 560-9457
>F (888) 453-0520
>
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