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March 2001

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Subject:
From:
Bill Schreiber <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 21 Mar 2001 17:19:28 -0600
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Don,
VDO is using a Smart Sonic Ultrasonic Stencil Cleaner and 440-R SMT
Detergent for cleaning stencils.  This same system may be used for cleaning
misprinted PWBs.  There is an article on the Smart Sonic Web Site by
Richard Clouthier of the Rochester Institute of Technology regarding this
subject.  Go to (www.smartsonic.com) and click on "Recommended Reading."

As for the ionic spec., this is a function of the rinse water quality
used.  You will need to use a high quality DI water rinse.  If the PWB has
vias, or if cleaning populated PCBs, the board should be rinsed in a DI
water ultrasonic bath.

If you need more information, contact me directly by e-mail or Tel.

egards,
Bill Schreiber
Tel: 1(818) 909-6400
E-mail: [log in to unmask]

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