Thanks Paul....hopefully I will get approval to do SEM so that I can know if its solder splash or surface finish I am dealing with here. Amol S. Kane Process Engineer Harvard Custom Manufacturing, Inc. 941 Route 28 Owego NY 13827 Phone: 607-687-7669 Ext 349 Fax: 607-687-9733 [log in to unmask]<mailto:[log in to unmask]> www.harvardgrp.com<http://www.harvardgrp.com> From: Paul Edwards [mailto:[log in to unmask]] Sent: Friday, July 10, 2009 12:28 PM To: TechNet E-Mail Forum; Kane, Amol (349) Subject: RE: Solder Splash at Wave on a AMP socket Yes it is...Especially if the socket uses fillers in the plastic to meet high-temp or flammability requirements... Paul Paul Edwards Surface Art Engineering -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Kane, Amol (349) Sent: Friday, July 10, 2009 6:21 AM To: [log in to unmask] Subject: [TN] Solder Splash at Wave on a AMP socket Dear Technetters, We have an instance of solder splash after wave on a AMP socket (1-822473-5) and the PCB underneath the socket. There are very fine particles of solder (or surface finish, I am going to do a SEM to find out the composition) that are evident visually during inspection after wave. The surface finish on the board is HASL and on the socket is Sn (Base metal is phosphor bronze). I tried a few sockets by fluxing them and manually holding them over the solder pot. I observed that the solder actually sticks to the plastic portion of the socket if it comes in contact with the socket body. Is that normal? I will adjust the wave ht to prevent the solder from drawing up the lead so much that it comes in contact with the body as see if this issue goes away In the mean time, I thought about posting this on Technet to see if anybody else has observed a similar phenomenon before. Any leads will be greatly appreciated. Regards, Amol WARNING: Export Control This document may contain technical data within the definition of the International Traffic in Arms Regulations (ITAR), and subject to the Export Control Laws of the U.S. Government. Transfer of such data by any means to a foreign person, whether in the United States or abroad, without proper export authorization or other approval from the U.S. Department of State is prohibited. CONFIDENTIALITY NOTICE: This e-mail, and any attachments, is for the sole use of the intended recipient(s) and may contain information that is confidential and protected from disclosure under the law. 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