John, The last thing I want to do is scrap them. The problem is that we have multi-pin connectors that are impossible to review from the topside, making vertical fill judgments iffy at best. I'm just trying to understand at what point OSP board finish can become unsolderable, and thus, unacceptable. Unfortunately, using an alternative flux is not an option... Leland -----Original Message----- From: John Burke [mailto:[log in to unmask]] Sent: Friday, August 10, 2007 7:01 PM To: 'TechNet E-Mail Forum'; Leland Woodall Subject: RE: [TN] OSP Processing Recommendations Why would you want to scrap them? If it is a matter of it already being assembled might you nto use an aggressive wave solder flux? What is the visual color condition of the through holes? John Burke (408) 515 4992 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall Sent: Friday, August 10, 2007 3:16 PM To: [log in to unmask] Subject: Re: [TN] OSP Processing Recommendations Richard and John, At what point would you consider scrapping double sided assemblies that hadn't yet made it to the wave process (or would that have to involve a lot of experimentation in order to determine)? Leland -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Todd, Richard Sent: Friday, August 10, 2007 5:56 PM To: [log in to unmask] Subject: Re: [TN] OSP Processing Recommendations Wow, John. I would love to use those criteria. Realistically (for us, at least), we have found through experimentation that no more than 10 days between the 2nd reflow cycle and wave soldering yields acceptable quality. Of course, the less time the better. Regards, Rick Todd Senior Engineer Panasonic Automotive Systems (770) 515-1087 ext. 1087 (678) 458-2887 cell -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of John Burke Sent: Friday, August 10, 2007 5:52 PM To: [log in to unmask] Subject: Re: [TN] OSP Processing Recommendations I would say within 2 back to back 8 hour shift cycles (or 16 real time hours) which is what I use as a rule of thumb for both OSP and silver. John John Burke (408) 515 4992 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall Sent: Friday, August 10, 2007 2:37 PM To: [log in to unmask] Subject: [TN] OSP Processing Recommendations Everyone, What is the maximum recommended time to complete all reflow and wave soldering cycles on product that is coated with OSP? I'm trying to establish a guideline for my facility and can't seem to find a lot of related information on this subject. Thanks in advance for your input! Leland Woodall --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------