>
>
>Remember the movie "Michael", where the Angel Gabriel explains that
>you can never eat too much sugar? Well, you can NEVER have too much
>ground.
>
>I normally expand a ground plane  onto every layer  that I have space.
>
>  
>
Actually, besides improved performance because you have a good ground 
system,
you will discover that your PCB manufacturing costs will fall as well, 
because in
high quantities, the vendor considers  the cost of the  etchant 
(chemical that removes
the copper) and the amount of dross created (copper in solution that has 
to be recycled,
a pain in the a_ _).  Since you have filled in all the empty spaces with 
ground pour,
his costs just dropped quite a bit.

See? its a win win situation all around!

--Bob

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