If you mean a 'fiducial', then it is a small (copper) dot on a PCB used as a mark/reference point for automatic placement of components. You need at least two of these dot's preferably as far as possible from each other and diagonally ori=EBntated. Daniel... ----- Original Message ----- =46rom: Ann & David Scott To: Sent: Saturday, May 19, 2001 18:45 Subject: [EE]: feducials > What is a feducials? > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.