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 > > This e-mail and any files transmitted with it may be proprietary and are > intended solely for the use of the individual or entity to whom they are > addressed. If you have received this e-mail in error please notify the > sender. > Please note that any views or opinions presented in this e-mail are solely > those of the author and do not necessarily represent those of Exelis Inc. > The recipient should check this e-mail and any attachments for the presence > of viruses. Exelis Inc. accepts no liability for any damage caused by any > virus transmitted by this e-mail. > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________