By Mark Thompson | Published on: October 21, 2013
Many times the Gerber files as received are done on CAD systems with certain limitations for thermal relief sizes on inner plane layers. An example of this would be thermals drawn so large that the arcs intersect and overlap on a series of holes creating a disconnect to the adjacent plane for the innermost holes. In cases such as this we contact the customer and ask to reduce the thermal size to ensure all the holes intended to connect to the plane actually do so. This is where an IPC net-list is invaluable as it would show up in a net-list compare at CAM as broken or open nets.
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