On 6/4/08, alan smith <micro_eng2@yahoo.com> wrote:
> I've not done a BGA footprint before in Eagle, and the data sheet for this part calls out
>
> 0.5mm spacing  (no problem setting that)
> 0.375mm copper pad (again..no problem)
>
> Now they spec a solder mask opening of .275, is that considered the tSTOP layer? Typically when I make a symbol, I just go with the defaults and don't even touch these things, but this one is a little different.
>
> I also do not seem to be able to edit the diameter of this.
>
> Anyone doing BGA's in Eagle?

pouvre pussycat...
:)
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