Henry, Back in the mid 90's when these parts (TI palladium plated) were introduced in the company I worked at then, we had some teething problems. But with some profile manipulation and training of operators we did not have any issues (Of course there was lab testing in the background). The training had to be done because there will be more wetting angles closer to 90 degrees than they are used to. One other very important thing, this finish and I suppose other palladium finishes, is/are finicky when it comes to fluxes. Some no-cleans work, others don't. We were lucky our old standard fluxes - Kester R243 solder paste and 923 and 924FB wave solder fluxes worked well. Others didn't. And finally, how old are your parts and what conditions have they been stored in? I'm sure others will come up with other good questions and hopefully a few hints for you. regards, Bev Christian Research in Motion -----Original Message----- From: Henry Rekers [mailto:[log in to unmask]] Sent: May 8, 2002 8:33 PM To: [log in to unmask] Subject: [TN] Palladium Leads Has anybody out there experienced non-wetting problems with no-clean solderpastes on parts that have palladium coatings on the leads. Specifically, have you had this problem with Texas Instruments parts? Thanks. Henry J. Rekers Manufacturing Engineer ---------------------------------------------------------------------------- ----- 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 e-mail to [log in to unmask]: SET Technet NOMAIL 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/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 e-mail to [log in to unmask]: SET Technet NOMAIL 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------