We do this and I have found that the best way is to add a
shape on to the top paste layer in the symbol. It seems to
work out the best in most if not all situations. It allows
you to modify it if necessary in the design and to put in
really crazy shapes as necessary. I use a shape for the pad
also. If you add a teeny, tiny pin in the shape it attaches
the net to the shape.
The only issue I have seen is when one of these needs to be
mirrored to the bottom. It usually does not happen as these
components are usually large. But when it does the
soldermask needs to be manually mirrored. Or it used to
anyway. I am not sure about the latest version as it hasn't
come up yet.
Good luck,
Kevin McCowan
Sr. PCB Designer
TSI Telsys
MAILER-DAEMON@xxxxxxxxxxxxx wrote:
OK here is one for the group...things that are built the way they are built, due to physics, not
We work with some rather strange shaped parts in the RF world...
the middle of the package that needs to be soldered for RF ground
These footprints often have large odd shaped center "slugs" in
for pastemask verses one (odd shaped) "pad" for the slug.
Well, the problem with this is defining what ends up as several "pads"
paste mask on a new subgroup layer: package geometry pastemask_top
It looks as though the best solution, at this point, is to put the
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I am just wondering, are there any other better solutions?
Gene Carman
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