Wayne,

I have a 50 page paper that is all about what you ask. Will send it
offline. But not widespread, with Brian's copyright ghoast in mind.

Inge




On 20 March 2012 20:33, Thayer, Wayne - IIW <[log in to unmask]>wrote:

> I'm looking for a source for hole wall to hole wall spacing minima.
>  Usually this doesn't come up if you use rational pad sizes, but sometimes
> it's appropriate to go tighter if there's no reliability issue.
>
> Wayne Thayer
>
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