The attraction to me is that real data overcame the potential residual effects elsewhere. Dewey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman Sent: Wednesday, March 08, 2006 6:15 AM To: [log in to unmask] Subject: Re: [TN] soldering to PdAg cap Hi Guy! The use of Sn62 will slow down the leaching of the terminal but you are still going to lose PdAg thickness. And you should be cautious on any secondary soldering operations because you have the possibility of completely leaching off the PdAg termination if you hand solder it a second time (I have seen components fall off pwas). Does your customer have real data demonstrating that a nickel or copper barrier layer on the capacitors will cause a functional issue? The reason I ask is I once worked with a program where the electrical engineers swore that the nickel barrier was going to be a huge functional issue. When they started having capacitors fall off the pwas (our soldering options were such that I couldn't prevent/minimize the leaching actions) the equivalent capacitor with a nickel barrier was used with no functional impact. Funny how real data matters! Good Luck. Dave Hillman Rockwell Collins [log in to unmask] Guy Ramsey <gramsey@RDCIRCUI TS.COM> To Sent by: TechNet [log in to unmask] <[log in to unmask]> cc Subject 03/07/2006 01:35 [TN] soldering to PdAg cap PM Please respond to gramsey@rdcircuit s.com We are leaching the termination off of a capacitor. Our customer requires a non-magnetic component and has specified a component without a nickel barrier, because of nickel's ferromagnetic properties. What can we do? --------------------------------------------------- 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 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- 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 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- 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 847-615-7100 ext.2815 -----------------------------------------------------