Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 18 Feb 1998 09:37:34 -0800 |
Content-Type: | text/plain |
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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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