Richard, Have you every heard of anyone having problems soldering to nickel? Regards, George George M. Wenger DMTS Bell Laboratories Princeton, Supply Network Solutions Engineering Research Center FMA / AQA / RCA Lab (609) 639-2769 (Office); 3210 (Lab); 2343 (Fax) [log in to unmask] -----Original Message----- From: peter lee [mailto:[log in to unmask]] Sent: Monday, February 26, 2001 5:22 PM To: [log in to unmask] Subject: [TN] RF Shield Hello, I am investigating the solderability of different elect. finishing of RF shields. So far I notice significant difference between tin and nickel finish. The particular 1"x1" brass shields with nickel plating that I am evaluating does not seem to have very good wetting at it's root and PCB junctions after reflow. The paste is alpha WS678. Does anyone else have solderability problems with nickel finish shields? What else would you recommend? Under what design concern/criteria would one select nickel finish? Thank you. Peter Process engineer __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------