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Thu, 12 Feb 1998 10:12:56 -0600 |
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Ruben--It is important to understand that No-Clean means just that--NO CLEANING. The
residue from a no-clean process that is properly implemented will be inert and NOT
cause any degradation when left on the PCB. It is very common to see the white
residue as a result of trying to remove no-clean residue with alcohol. If you WANT
to clean, you should be using a cleanable low-residue (non-rosin) flux. Talk with
your flux supplier. Jack
Jack Crawford, IPC Project Manger - Assembly
2215 Sanders Road, Northbrook IL 60062-6135
[log in to unmask] http://www.ipc.org
847-509-9700 x 393
fax 847-509-9798
>>> Ruben Irizarry <[log in to unmask]> 02/12/98 11:40AM >>>
Hi everybody I am having a problem, and it is that we used to use Water
soluble paste in the past and for that we used Alcohol to clean reworked
boards. Now we are in No-Clean and if we use alcohol there are some white
residues that sometimes bothers me a lot. Could somebody tell me more about
this white residues, how can I clean them, what can I use, are they
acceptable. This is urgent to me I will appreciate all your help.
Gracias,
Rub?n E. Irizarry-Guzm?n
Operations Engineer
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Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
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