Yannick,
The specifics of the process will depend on the design of the board and the adhesive you use.
We use a Loctite Printable adhesive 3612.  Make sure to pick a printable adhesive.  Loctite as well as other companies also offer adhesives that are printable AND dispensable.  

We use our "normal" printing process.  For us, "normal" means either manual printing using a TA printer or automated printing with a DEK screen printer.  In both cases we use .006" thick stencil and we use metal squeegees.  If we are lucky, we only have chip components.  If we are not lucky, we have to manually dispense dots for the larger components (which is why dispensing is sometimes better.)

-Carrie

-----Original Message-----
From: Yannick Brisson [mailto:[log in to unmask]]
Sent: Friday, October 03, 2003 9:41 AM
To: [log in to unmask]
Subject: [TN] Adhesive printing


Hi,

        Does anybody ever try to print adhesive on a board, we have a double
side board which need to go after SMT in the wave, we must put some glue on
the board to keep the component on the board.  And it's time consuming to
get the glue off the board.  Now we are thinking to print adhesive with a
stencil.  What do I need to do that? what type of stencil, squeegees,
aperture for the component, how much adhesive must I have on the board,
thickness of the stencil, in other wordswhat do I need to know to do this
opertaion.

Thanks you

Yannick

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