Hello all, it's my understanding that non-functional pads degrade performance of signal vias however most PCB manufactures do not remove them by default. I do a lot of via modeling and am curious about what the most common practice is. Do people generally request to remove non-functional pads or do they leave them in the design? How common are the manufacturing issues that prohibit removal of the NFPs. Thanks, Chris ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu