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Although Gen3 Systems Limited has taken reasonable precautions to ensure no viruses present in this email, Gen3 Systems Limited can not accept the responsibility for any loss or damage arising from the use of this email or attachments. On 31 Oct 2007, at 18:48, Guy Ramsey wrote: > In truth, it is my understanding that the flux was changed because > nobody > uses pure rosin flux anymore. They only reason the flux makers > produced it > was for solderability testing. > > The new flux specification was supposed to reflect real world > performance > requirements. We are using an L0 flux. But, I am sure it performs much > better, in the real world than the material specified in previous > revision > of the standard; False calls. > > Though, I suspect that someone using pure rosin flux could have > issues with > components that pass the current tests. > > Dave? > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Dennis Fritz > Sent: Wednesday, October 31, 2007 2:32 PM > To: [log in to unmask] > Subject: Re: [TN] Flux > > > Guys, > > I am vice chairman of the 5-23b committee on solderability with Dave > Hillman as the chairman. I do not officially remember why this was > changed, but it was for a reason - not willy-nilly. My suggestions > are > either: > 1. Because of some change in the J-004 standard on flux, or 2. The > changed > flux reduced the chance of false calls in the test. > > I have a reinforcing note to Dave Hillman to get you an answer. And, > please review the information still carried on the committee web site: > > _http://members.ipc.org/commReg/CommRegFile.asp? > PDFTYPE=min&ComName=Componen > t% > 20and%20Wire%20Solderability%20Specification%20T.G&comm=5-23B_ > (http://members.ipc.org/commReg/CommRegFile.asp? > PDFTYPE=min&ComName=Componen > t%20and%20Wire%20 > Solderability%20Specification%20T.G&comm=5-23B) > > From a quick scan, I don't see where this change is called out in the > minutes. Again, you can review most any of the IPC committtee > work, by > going as > follows: > > 1. IPC Web page > 2. Standards (that is under the Knowledge header) 3. Standards > Development > 4. Committee Home pages 5. Then, you have to be somewhat familiar > with the > IPC committee structure to know where to search. Assembly > standards tend to > all be under committee 5-20 Assembly and Joining. J-002 is under > Committee > 5-23B. > 6. Try it and you will like it (Dr. Suess). > > Denny Fritz > MacDermid, Inc. > > > In a message dated 10/31/2007 1:32:03 P.M. Eastern Daylight Time, > [log in to unmask] writes: > > New consensus . . . Who sits on these committees? > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Sue Powers- > Hartman > Sent: Wednesday, October 31, 2007 12:36 PM > To: [log in to unmask] > Subject: [TN] Flux > > The new JStd-002B 3.2.2 states that ROL1 flux shall be used for > solderability testing, while the old Rev JStd-002A 3.2.2 calls out > ROL0 > Flux. Does anyone know why this was changed? > > > > > > > ************************************** See what's new at http:// > www.aol.com > > --------------------------------------------------- > 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 -----------------------------------------------------