[sdiy] Ground planes

[Stewart Pye]

Hi David,

I normally use a ground plane on the top layer simply because it makes 
the layout easier, and enables me to get a tight (condensed) layout. I 
run as many tracks as possible on the bottom side, and when necessary to 
place tracks on the top side I make sure I'm not chopping the ground 
plane up into sections.

Also keep in mind what is connected to the ground plane. I make the 
ground plane polygon go around my power input connector and main filter 
caps and run tracks from the connector to the filter caps and then to 
the ground plane.

Regards,
Stewart.


David Ingebretsen wrote:
> Is there any value to adding a ground plane fill to a PCB for the typical
> types of circuits for audio module? How about one on both sides of a two
> sided PCB? Is there any difference in putting it on the top versus bottom?
>
> I'm getting ready to send a board off to be made. It's easy to add it, but
> I'm not sure the theory behind it other than even with "thermals", it's a
> pain to solder pads connected to a ground plane. 
>
> I've noticed some PCB's I've purchased have them, but many don't and I
> haven't heard any artifacts either way.
>
> Thanks,
>
> David
>
> David M. Ingebretsen M.S., M.E.
> Collision Forensics & Engineering, Inc.
> 2469 East Fort Union Blvd. STE 114
> Salt Lake City, UT 84121
> www.CFandE.com
>
> 801 733-5458 Office
> 801 842-5451 Cell
>
> dingebre at CFandE.com
> dingebre at 3dphysics.net
>
>
>
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