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June 2004

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Subject:
From:
Jeffrey Bush <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 15 Jun 2004 09:57:47 -0400
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text/plain (105 lines)
This is probably Bright (watts) nickel?





Jeffrey Bush
Director, Quality Assurance and Technical Support

                          76 Technology Drive - POB 1890
                             Brattleboro, Vermont 05302-1890
                                Tel. 802.257.4571.21 Fax. 802.257.0011
                                    [log in to unmask]
                              http://www.vtcircuits.com	



-----Original Message-----
From: David Douthit [mailto:[log in to unmask]] 
Sent: Tuesday, June 15, 2004 9:09 AM
To: [log in to unmask]
Subject: Re: [TN] Nickel Wear Resistance


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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