On Sat, 2006-10-21 at 21:00 +0300, Vasile Surducan wrote: > Hi, > I have a quite large BGA package to route (484 pins). > The question is (only for those who already did such PCB designs), > which would be the best way to manage the unused pins: deleting the > pads or keep them on the PCB ? I presume will be less than 10 layers, > but the overal thickness must be quite low (around 0.5-1mm) I'd keep them on the PCB, and at least route them to some test points, you never know when those "unused" pads need to become "used". TTYL -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist