Technetters, I have a huge problem with the wetting and solderability of a fine pitch 15 mil QFP. I then spoke with the solder supplier; which requested a couple of the components and performed x-sections. During the x-sections, they also performed a metal composition of the components lead. The metal in the leads turned out to be alloy 42, which is ....non-wetting???? ...."or so I'm told". I really don't know much about metals but the solder supplier stated that the component will never wet properly. I would really like to get some literature on this alloy 42 and ask if anyone else has had any of these problems and what was their fix. Thanks in advance for your time and energy. Regards, Ron Waugh Process Engineer Diversified Systems, Inc. Phone: (317) 299-9547 Ext. #336 Fax: (317) 298-2055 Email: [log in to unmask] --------------------------------------------------------------------------------- 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 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 ---------------------------------------------------------------------------------