Everyone, Thanks for your previous help and suggestions, and hope you're having a great Friday. To update the group, there was another piece of this aggravating material found last evening on third shift. It is consistent in size, shape, and compositional analysis as the previous samples. It was found prior to the conformal coating process, so I was able to check the magnetic properties. It has none. Unlike the others, this one was found on the bottom side of the board. Removal of the material resulted in cracked flux and a slight visual indication of an imprint of the wire on top of one of the effected solder joints. If I'm now thinking correctly (may not be, as this is wearing me down fast), this was introduced to our product somewhere between our board cleaning machine and the exit of our first reflow oven. I intend to perform a solderability test this afternoon, laying a portion of the sample in two adjacent paste deposits and checking the results after reflow. I expect to see the sample still there, only having floated to the top of the reflowed joints but still encased in flux. Am I missing anything, or do you have any other suggestions on what I can do with this material in an attempt to identify the source? Thanks again for all your feedback in advance. Leland --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 -----------------------------------------------------