In a message dated 03/01/2000 11:31:50 AM US Eastern Standard Time,
[log in to unmask] writes:
>
> Could anyone tell me the most effective way of cleaning RMA-flux on FR4-
> boards as well as ceramic substrates. Both inline and batch cleaning is of
> interest.
> Component stand-off is 0.04mm in some cases and micro-BGA:s are soon in
the
> production line.
The most effective cleaning of high solids RMAs has been with a good
saponifier (5-7%) in deionized water, 150F, with 2-3 DI water rinses.
Doug Pauls
CSL
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