Cedric,
In some rather rare cases fluxes of different types (core wire vs. solder
paste, wave flux vs. solder paste, etc.) when mixed together fail SIR and/or
electrochemical migration testing, even though they individually pass. I
can't prove it, but I would expect that a failure would be more likely to
happen if the two materials are not made by the same supplier.
That being said, even large companies like Nortel (now deceased :( ) did
NOT test ever combo, not even 10% of the combinations, because, frankly, it
would be too costly and the risk was deemed low enough to live with the
possibility.
So there is some risk, but as far as I know, no one in our industry has ever
quantified what that risk is.
Bev
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Cedric ORAIN
Sent: Wednesday, September 14, 2011 3:10 AM
To: [log in to unmask]
Subject: [TN] Flux Compatibility
Good morning dear Technetters,
I'm asked by one of my customer if I checked the compatibility between in
one hand the no-clean flux from the SMD paste and the other hand the resin
flux from the wires.
The answser was no !
Could you advise which kind of issue could occur if any ?
Thanks for your help,
Regards,
Cedric
www.inovelec-groupe.com
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 16.0
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
For additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 16.0
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
For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
|
