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.

--Bob

alan smith wrote:

>sure...I have done it all the time.  Its the sandwiched ground plane layers you really don't want to cut up, if its multi-layer.  
>
>Shawn Wilton <black9@gmail.com> wrote:  For example, is it considered OK to place a power fill plane on the same
>layer as some of your digital I/O? (None of this is high speed).
>
>I'm hoping maybe someone has a list of things I should watch out for.
>
>I know there are some guys on here with *years* of layout experience, so I
>figure I would poke the grey matter a bit before sending off this board.
>
>--
>
>
>Shawn Wilton (b9 Systems)
>http://black9.com
>  
>


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