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
>
>---------------------------------------------------
>Technet Mail List provided as a service by IPC using LISTSERV 1.8e To 
>unsubscribe, send a message to [log in to unmask] with following text in 
>the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt 
>or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET 
>Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the 
>posts: send e-mail to [log in to unmask]: SET Technet Digest Search the 
>archives of previous posts at: http://listserv.ipc.org/archives Please 
>visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for
additional information, or contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
>-----------------------------------------------------
>
>
>
>

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts at: http://listserv.ipc.org/archives Please
visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for
additional information, or contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
-----------------------------------------------------