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Reply To: | TechNet E-Mail Forum. |
Date: | Fri, 19 Mar 1999 09:57:24 -0600 |
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We used laser cut stencils from KJ Marketing . For different densities ,
different shapes ( a part of shape can be extended outside body outline -
just to facilitate release of adhesive ) can be worked out.
Contact : 416-252-1061
I do not work for KJ marketing. I was impressed to use their transparent
stencil for prototypes and gluing applications. They are cost effective for
specific applications.
Ashok Dhawan P.Eng.
Unisys Canada Inc.
Winnipeg Canada
-----Original Message-----
From: Gary Camac [SMTP:[log in to unmask]]
<mailto:[SMTP:[log in to unmask]]>
Sent: March 18, 1999 1:41 PM
To: [log in to unmask] <mailto:[log in to unmask]>
Subject: [TN] Assy: Stencil Printing Adhesive for 0603 Components
Hello all,
Is anyone out there stencil printing SMD adhesive to populate 0603 parts? I
would be interested in hearing of your experiences.
The way I have it calculated is that I have 0.020" between pads. With a
0.010" aperture I have a whole (dripping sarcasm) +/- 0.005 to play with. I
don't know...but when you take into account stencil alignment accuracy and
adhesive squeeze out after the part is placed, this just doesn't seem
destined to become a six-sigma operation.
I realize a smaller aperture would help, but I am already concerned with how
consistently the adhesive will be removed from the apertures during
clean-up.
Thanks,
Gary Camac
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