Damage may occur in a few milliseconds. It depends on at least 10 
factors, some of which are imponderable, such as where the nuclei are 
that trigger the cavitation.

Brian

David Tremmel wrote:
> Dear forum,
> 
> I have some microBGAs which have a no-clean flux residue which must be
> removed before they can be reballed.
> 
> I have been doing my homework regarding USC (ultrasonic cleaning) and would
> like opinions on whether or not putting the microBGAs in alcohol and 
> putting
> them through a US cleaning cycle for 1 minute would damage the wirebonding.
> 
> Most of what I see regarding USC is negative, but would only a minute be
> damaging to the parts or does the damage occur after more time (i.e. - 3
> minutes, 5 minutes).
> 
> As always, I appreciate the feedback.
> 
> 
> David
> 
> P.S. - Ramon, you said a 15 minute soak in alcohol would do trick, right?
> 
> _________________________________________________________________
> ¿Cuánto vale tu auto? Tips para mantener tu carro. ¡De todo en MSN Latino
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> 
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