For small FC builds we used to dry @105-110degC for at least 2 hours. I've been told that you need to pull at least 27 inches of mercury to attain the required vacuum. The Universal Consortium mentioned this technique in some detail maybe 4 years ago in one of their presentations. I think that Dan Blass was the author/presenter. Rich Kraszewski Advanced Manufacturing Engineer - KEDS Phone: 812.634.4281 Pager: 812.481.3492 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Gabriela Bogdan Sent: Friday, January 16, 2004 1:20 AM To: [log in to unmask] Subject: Re: [TN] MSD Question Does anybody in this forum dry the components in a vacuum oven? Are there any time and vacuum suggestions? What about old printed circuits or assemblies when preparing to replace BGAs? Gaby ----- Original Message ----- From: "Dave Hillman" <[log in to unmask]> To: <[log in to unmask]> Sent: Thursday, January 15, 2004 5:53 PM Subject: Re: [TN] MSD Question > Hi Don! Here's a quick answer - if the Sn/Pb component finish is not > sufficiently thick you will run the risk of degrading the > solderability - the higher the bake temperature the quicker/greater > the degradation. Good Luck. > > Dave Hillman > Rockwell Collins > [log in to unmask] > > > > > Donald Vischulis > <dvischulis@earth To: [log in to unmask] > link.net> cc: > Sent by: TechNet Subject: [TN] MSD Question > <[log in to unmask]> > > > 01/14/2004 08:26 > PM > Please respond to > Donald Vischulis > > > > > > > Just a quick question: What is your opinion of a MSD control > procedure the > requires baking tin/lead terminated (coated) components every 7 days? > > Don Vischulis > > --------------------------------------------------- > 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 > 847-509-9700 ext.5315 > ----------------------------------------------------- > > --------------------------------------------------- > 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 847-509-9700 ext.5315 > ----------------------------------------------------- > --------------------------------------------------- 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 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- 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 847-509-9700 ext.5315 -----------------------------------------------------