I use a epoxy pen that my stencil house gave me
it says:
HEAT CURE EPOXY INK AM-33
HC-883 BLACK
For Professional Use Only, Made in USA
It does not give the vendor.
I fill the fiducial and "CAREFULLY" heat the area with a heat gun, works
great, but it doesn't last forever..
Royce Taylor
Engineering Manager
Sanmina Corporation
10 Manor Parkway
Salem, NH 03079
(603) 896-2192
(603) 896-2063
[log in to unmask]
-----Original Message-----
From: Julien Bouchard [mailto:[log in to unmask]]
Sent: Friday, December 15, 2000 7:39 AM
To: [log in to unmask]
Subject: Re: [TN] Repair of fiducial fill material
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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