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 -----------------------------------------------------