SERA equipment can be purchased from:

        ECI Technology
        (973)773-8686




tgyee wrote:
>
>      Can somebody tell me where I can get a supplier of SERA equipment?
>
> ______________________________ Reply Separator _________________________________
> Subject: Re: [TN] ORGANIC COATING(PRE-FLUX) THICKNESS MEASUREMEN
> Author:  "TechNet E-Mail Forum." <[log in to unmask]>, at corp
> Date:    2/15/98 8:13 AM
>
> At 18:43 14/02/98 +0800, you wrote:
> >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 .
> >
> Just short comment :
> For such method You have to know the exact area covered by OSP . Beside of
> it , the result will be average , without differentiation between surface
> and PTH .
> We are using SERA equipment , but : the measurement is time consuming and we
> are not sure about corelation between this method and spectrophotometric
> method .
> Regards .
> Edward Szpruch
> Eltek Ltd - Israel
> Tel  972 3 9395050
> Fax 972 3 9309581
> E-mail :  [log in to unmask]
>
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