There is a face near to the right bottom side of http://stevezeva.homestead.com/files/BGA_SEM.jpg <https://webmail.dso.org.sg/exchweb/bin/redir.asp?URL=http://stevezeva.homestead.com/files/BGA_SEM.jpg> ________________________________ From: TechNet on behalf of Steve Gregory Sent: Thu 4/22/2010 5:29 AM To: [log in to unmask] Subject: Re: [TN] BGA balls dipped in sugar? 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 ----------------------------------------------------- ______________________________________________________________________ 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 -----------------------------------------------------