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I like to use compressed air from a compressor with a dryer on it, and
a soft wide cheap paint brush. I tape up the metal around the brush. I
cringe on putting any board in a dish washer. To many contaminates in
the drinking water we use. I have seen the damage to many times that
water dose as it sits under an IC, especialy the larger SMTs. Even
after hitting it with compressed air and drying it with a low setting
heat gun you still end up with the mineral deposits that were in the
water sitting under the IC eating away at the traces and the inside of
the IC legs. When they wash boards at the factor to get rid of the
solder resin they use purified/filtered water. It's one thing to clean
the bottom of your boards with an old tooth brush and water or
Isopropal Alchol 80 percent. Washing boards in a dishwasher can be a
quick fix and aid in the repair of the board. In the long run you have
invited more problems to show up on the circuit board. Especialy double
side boards + were the traces run under Larger IC's.
A Soft paint brush, dry compressed air, old tooth brush, cloth rag and
ISO Alcohol dose a great job of cleaning up boards.
RJ
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