Joyce, We don't do BGA of any sort here, and we've only tried some preliminary testing of the PM202, but it did give us better wetting on some difficult-to-solder parts. The residue is soft (waxy) and fairly colorless. As far as I know it's not yet available in any quantities....if you know differently I'd like to hear what (other) secrets you have. Thanks, Steve -----Original Message----- From: joyce [mailto:[log in to unmask]] Sent: Wednesday, January 22, 2003 1:00 PM To: [log in to unmask] Subject: [TN] PureMark 202 Hi, Techneters, Does anyone used no-clean Kester Puremark 202 for CSP? It is ultrafine particle size paste. Can I use it without nitrogen (flip chip). Thanks. Best regards, joyce --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------