Try  [log in to unmask] <mailto:[log in to unmask]>  .  They
provide the test boards with components and will do the testing as well.
Haven't used them myself, yet, but I might later this year.

Jim Marsico
Senior Engineer
Production Engineering
EDO Electronics Systems Group
[log in to unmask] <mailto:[log in to unmask]>
631-595-5879


        -----Original Message-----
        From:   Tom Gervascio [SMTP:[log in to unmask]]
        Sent:   Thursday, May 20, 2004 8:30 AM
        To:     [log in to unmask]
        Subject:        [TN] Cleaning test boards

        I am looking for an "off the shelf" test board and components that
could be used for evaluating the effectiveness of cleaning process.

         In the past, I've ordered dummy boards with mixtures of microBGA,
Pin Grid Arrays, Quad Flat Packs and SMT connectors representing parts for
which we have had cleaning problems. Sometimes I've tried to bond glass
slides and cover plates to quickly look at the ability to get under
different standoff height versus package size (yes I realize this has
different surface energies than actual parts- but it's a tradeoff of
actually trying to remove soldered parts to look under them for ionic and
visual residues).  But his is difficult and time consuming to get the boards
and parts and I was trying to get ideas. Also this doesn't include test
patterns to check for electromigration or S&IR effects.

        Are there any standard test vehicles or designs that people have
developed and be willing to share?

        Thanks



        Tom Gervascio
        Senior Process Engineer
        Sparton Electronics
        (352) 540-4040

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