>I'm looking to find out how many of you use "local" fiducials in addition to >"global" fiducials for part placement on pick and place machines. At what pitch >and package type do you not rely solely on the global fiducials and use local >fiducials? Thanks for you response. This question should be answered by the folks who assemble the product you are designing. As a service bureau we do whatever the customer requires, but generally speaking we use local fiducials as follows: Place local fiducial(s) on any component with a pin pitch less than .031" (.787mm). If you have the space place 2 fiducials, in opposite diagonal corners, outside the part boundary, drawing a line between the two that crosses the component centroid. If you have very little space place one fiducial on the component centroid. Again, these questions are best answered by your assembler!!! Charles Emory Interconnect Design Services Email: [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************