Rick, Our suppliers like to see a .040" solid round, with a .020" annular ring of keep out area beyond that to give the best contrast. They also like to see a .200" clearance from the round to any pad. If the .200" can't be maintained, they sometimes suggest a different shape fiducial so they can identify it better with their vision system. They usually tell us this during a design review before final layout. DT At 08:20 AM 7/1/99 -0400, you wrote: >To all, > >What is the recommended size and shape of a fiducial? >I believe I.P.C. recommends 0.040" round. > >What are your thoughts? > >Frustrated > >