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November 1997

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From:
"Larry J. Fisher" <[log in to unmask]>
Date:
Mon, 24 Nov 1997 11:08:49 -0500
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"TechNet Mail Forum." <[log in to unmask]>, [log in to unmask]
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Normally, you do test the entire panel when doing ionic cleanliness testing.
You calculate the surface square feet of the panel (in case of an 18" X 24"
panel, that would be 6.00 square feet) and then add the volume of solution
(usually a 75%/25% blend of isopropyl alcohol/DI water) to just cover the
panel in the tank. Depending on the particular machine, you either input the
specifics of the test (square footage of panel, volume of solution, etc) into
the processor or you do it by hand calculator.

You can cut up the panels to do the test; however, I would recommend that you
get an instrument that will accommodate your largest panels (don't think
there is too much difference in cost). In this manner, you have a totally non
destructive test and the test results will be totally representative of the
panel, not just a portion of it.

Hope this helps

Larrry Fisher
Dexter Electronic Materials
[log in to unmask]

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