Dear Taegon Lee ,


     It is actually quite simple . Dissolve the organic coating in alcohol ,
     ethanol and measure the coating thickness with spectrophotometer at a
     particular wavelength recommended by the chemical supplier . Correlate
     the reading with the mathematical calculation which I believe the supplier
     would have .

     Thanks .








>Hello technetters.
>
>Can anyone inform me of the method to measure thickness
>of pre-flux(somebody calls this Entek).
>Our factory is using Tamura chemical.
>It is preferable if the method is nondestructive.
>
>Thanks.
>
>Taegon Lee ([log in to unmask])
>SEMCO
>
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Richard Lim

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