Creating Split Planes and Understanding how to Manipulate Thermals and Antipads

Version 1

    For an in-depth look at split planes, including the method to control and calculate thermals and antipads see appnote MG581658:

    https://supportnet.mentor.com/portal?do=reference.appnote&id=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