Julien Bouchard wrote:

> Thank you for your answer, it should really help.  But what is the loctite
> 4501 ? I found nothing about this on the loctite web site ? IS a
> cyanocrilate or an epoxy base glue ?
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Joe V. Ottesen
> Sent: 15-Dec-00 02:21
> To: [log in to unmask]
> Subject: Re: [TN] Repair of fiducial fill material
>
> 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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> > --------------------------------------------------------------------------
> -------
>
> Hi,
>
>     I have also seen the problem, with the same cleaning equipment.
>     To repair the fiducial and get the best contrast we use a Loctite 4501
> kit.
>     Today our stencil deliverer is pigmenting the metal in the half etched
> fiducial mark and
> it works like a dream.
>
> --
> best regards
> Joe Vella
> [log in to unmask]
> Website      http://www.bbelectronics.dk
>
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>
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The Loctite 4105 kit consists of the glue 4105 and an activator 7455. The glue is black in
colour and an epoxy based glue. Fill in the fiducial hole with the glue and one spray with the
activator and the stencil is ready for production.


--
best regards
bb electronics a/s

Joe V. Ottosen

Telephone direct    (+45) 76 25 10 29
Fax direct          (+45) 76 25 10 30
Website      http://www.bbelectronics.dk

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