[SI-LIST] Re: copper thickness of a ref plane

James:

THe thickness of the plane is mainly determined by the power consumption of your
card. I guess it's a similar idea as to how much current a wire can carry with
certain diameter. However,  we do use 0.5 oz copper all the time and no problems
at all.

Regards

Perry

"Peterson, James F (FL51)" wrote:

> Because of physical limitations, I am considering reducing all of the ref
> planes on a design to 1/2 oz. copper (was 1 oz. copper). The board level
> logic is 3.3V CMOS. Does anybody see any problems with doing this?
>
> thanks,
> Jim
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