>From: Spehro Pefhany > >The issue isn't so much the size of the hole in the SM but the registration >between the SM and the pads. If they are out of register you might get part >of the pad covered up and part of it would be fine. Right. They must have a minimum "track" width for the solder mask as well. If you've got 80 mil pads on 100 mil centers, with a 90 mil (or greater) stop hole, that doesn't leave much for the mask. Colin _________________________________________________________________ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=dept/bcomm&pgmarket=en-ca&RU=http%3a%2f%2fjoin.msn.com%2f%3fpage%3dmisc%2fspecialoffers%26pgmarket%3den-ca -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.