Creating Split Planes and Understanding how to Manipulate Thermals and Antipads

Document created by MENTOR_BillT on Apr 27, 2015
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For an in-depth look at split planes, including the method to control and calculate thermals and antipads see appnote MG581658:


The appnote goes over split plane definition, custom thermal and custom antipad creation. The size calculations for thermals and antipads are discussed as well as the interaction of settings for:

  • Remove Unused Pads
  • Use Design Rules for Thermals and Antipads
  • Custom Thermals and antipads defined in the pad stacks
  • Thermal style setting ins Tools > Options > Thermals
  • Flood over Via settings in the Flood & Hatch Options