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March 2001

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Subject:
From:
"Hunter, Brian C" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 6 Mar 2001 16:38:27 -0700
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text/plain (43 lines)
I'm passing on a question from a graduate student who is trying to model a
solder joint that is solder mask defined.  He is having difficulty finding
the geometry of  solder masks commonly used in production.   For example,
the diameter/angle of the opening, the thickness of the mask, the situation
where soldermask defined pads are used, etc.  Any help you can provide would
be appreciated.

Thanks,

Brian

-----Original Message-----
From:
Sent:   Tuesday, March 06, 2001 4:06 PM
To:     Hunter, Brian
Cc:
Subject:        Questions


Hello Brian,

How are you? Hope everything is well with you. This is Tony. I need your
help. Currently I am working on a  project where I need to define the
shape of solder joint (has to be solder mask defined). However, it is very
difficult to find the geometry of  solder masks commonly used in
production. (For example, the diameter/angle of the opening, the thickness
of the mask, the situation where mask is  necessary). If you think you can
help me
out on this. Can you please let me know a  time that I can call you? Very
much
appreciated! Tony
************************************************************

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