Hi Inge! You sent me this picture some time ago, along with one of your beautiful SEM images and the EDAX chart of it, remember? http://stevezeva.homestead.com/files/bga002.jpg http://stevezeva.homestead.com/files/BGA_SEM.jpg http://stevezeva.homestead.com/files/BGA_EDAX.jpg Steve -------------------------------------------------- From: "Inge" <[log in to unmask]> Sent: Wednesday, April 21, 2010 4:26 PM To: <[log in to unmask]> Subject: [TN] BGA balls dipped in sugar? > Hi, > at least it looks so. It's ordinary lead tin soldering process. Analysis > gave that what looked like sugar crystals probably was Lead Carbonate. > How is that created? If someone got same, what did you do then? You need > extraordinary stuff to remove these crystals. > Sent picture to Steve. > /Inge > > > > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > --------------------------------------------------- > 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 > ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- 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 -----------------------------------------------------