Genny,
Back in April of 97, one of the Circuits Assembly columns I wrote was
titled "When a Cool Flux Should Be A Hot Item".  It discussed a case study
where unreacted flux caused degradation in insulation resistance.  I can
send it if you like.  There was also a column in April of 99 called "Just
Pump It Up" that also dealt with the issue.

Doug Pauls
Rockwell Collins





Genny Gibbard <[log in to unmask]>@ipc.org> on 10/11/2002 12:05:33 PM

Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond
       to Genny Gibbard <[log in to unmask]>

Sent by:    TechNet <[log in to unmask]>


To:    [log in to unmask]
cc:

Subject:    Re: [TN] no clean flux as a board cleaner?



I wish I could say, 'just kidding'.  (Joyce and Steve gasp in
horripilation, and need first aid).
You can have all kinds of technical support for production processes, but
sometimes someone discovers something that "works really slick" for a
problem, tells their coworkers, and they all start doing it without ever
realizing that there may be bigger issues they aren't aware of and they
should have gotten approval first.
We learned of this totally by accident, when implementing some lean
manufacturing techniques and controlling what tools are at their work
space.  They told us they needed this pen back at their station when it was
removed, and we asked why...

The consensus seems unanimous about the danger.  Does anyone have any
technical references they can share to help me back this up?
-----Original Message-----
From: Charles Caswell [mailto:[log in to unmask]]
Sent: October 11, 2002 7:26 AM
To: [log in to unmask]
Subject: Re: [TN] no clean flux as a board cleaner?


I see you have several replies already. It's time to tell us all this is
joke.



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