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December 2000

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Subject:
From:
David Fish <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 12 Dec 2000 16:17:16 -0800
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Smart Sonic cleaners are more effective a removing some types of epoxies that others.  They
are especially effective at removing those intended to resist solvents.  Hmmmm

Smart Sonic has worked with stencil suppliers to find alternate materials to mark fiducials.
Bill Schreiber [[log in to unmask]] at Smart Sonic is familiar with situations like yours.

Dave Fish



Julien Bouchard wrote:

> Hi everybody,
>         We recently start to use an ultrasonic stencil cleaners for our stencils.
> It' work well, but after some time, we saw a lot of fiducial that the black
> epoxy have been partially or totaly remove.  I want to know if someone had a
> similar problem with a stencil cleaner. Also, we looking for a material to
> repair the black epoxy of the fiducial ( for now we use ink pen, but we need
> to redo the job everytime we change of product). Our stencil are from UTZ
> and our stencil cleaner is from SMART-SONIC.  Thank you.
>
> Julien Bouchard
> Matrox - Process Engineer
> Email : [log in to unmask]
>
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