I suggest to check if it hidden pillow phenomenon I have to see the cross section before. Best Regards Reuven ROKAH -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Vladimir Igoshev Sent: Wednesday, November 15, 2006 10:31 PM To: [log in to unmask] Subject: Re: [TN] Separation in BGA joints If the melting point is 270 C, as you checked then I completely agree. Regards, Vladimir -----Original Message----- From: [log in to unmask] To: Vladimir Igoshev; [log in to unmask] Sent: Wed Nov 15 15:20:53 2006 Subject: Re: [TN] Separation in BGA joints Hi Vladimir, Certainly, more solder paste would have helped; but IMHO is is still the temperature being too low. Werner --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 -----------------------------------------------------