Hi Inge and Everyone! I've got your pictures up. Go to: http://stevezeva.homestead.com/files/RYT809205_25b.jpg http://stevezeva.homestead.com/files/RYT809205_20b.jpg http://stevezeva.homestead.com/files/RYT809205_4.jpg http://stevezeva.homestead.com/files/RYT809205_9.jpg http://stevezeva.homestead.com/files/Spectrum_RYT809205_flat.jpg Sorry I can't help with any input, but this kind of stuff is w-a-a-a-y out of my league... Steve -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Hernefjord Ingemar Sent: Thursday, September 06, 2007 9:01 AM To: [log in to unmask] Subject: [TN] Semi guys, need support 25 micron gold ball bonding bad yield, ball lifts, poor adhesion on Al pads. Triple diff line tranceiver chip. Weird micrographic exteriour, EDAX gives C,F,O, Cl,Cu,Al,Fe. Cu can be ppm alloy but the others unwanted on semi chip bond pads I think. 1kV SEI SEM reveals strange superficial structure. Chip not contaminated by us, fresh opened chip trays show this face. Question: what semi manufacturing problem can this be? Will post a few pics to Steve's gallery. TrikeMan? /Inge --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------