Ground Wall

Check the clearance for an area affected by ground wall.

Ground walls are design geometries to be used to determine equipment’s movement and mechanical structure connection with PCB.
  • Ground Wall Layer Definition: Define the ground wall.
    • Ground Wall Layer for Top: Select the ground wall top layer from the layer list.
    • Ground Wall Layer for Bottom: Select the ground wall bottom layer from the layer list.
    • Exclude DIP Pin connected Objects: Exclude objects which are connected to the DIP type component pin from target ground walls.
    • Exclude Metal Mask Overlapped Objects: Exclude objects which overlap with metal mask from target ground wall.
    • Include All Objects in given Layer (Line, Arc, Polyline, and Polygon): Target ground wall object would be all objects on the selected layer. If this option is not checked, target ground wall objects are only objects, drawn with polygon.
  • Checking
    • Clearance between Ground Wall and Component: Check the clearance between ground wall and components.


      Figure 1. Clearance between Ground Wall Corner and Components
      • Item: Specify the item name.
      • Comp Group: Select target clearance checking target component from component group list.
      • Measure Base: Set target component measurement base.
      • Comp Clearance: Set the clearance value between ground wall and specified components.
      • Component Clearance at Reverse Side: Set the target component placed.
      • Ground Wall Corner: Set the clearance value between components and a ground wall corner.
      • Remainder: Check the clearance between ground wall and not specified components in table.
        • Component Clearance: Set the clearance value between ground wall and remaining components.
        • Component Measure Base: Set remaining component measurement base.
        • Component Clearance at Reverse Side: Set the clearance distance for the remaining components placed on the opposite side of the Ground Wall.
        • Clearance between Ground Wall Corner and Remainder Component: Set the clearance value between the ground wall Corner and the remaining components.
      • Void-Checking Component Group: Set void-checking components among specifying components in table.
      • Exclude Checking for SMD Pins, not having Metal Mask: Define additional void-checking component SMD pins.


        Figure 2.
    • Clearance between Ground Wall and Solder Mask: Check the clearance between Ground Wall and Solder Mask.
      • Except Component Group: Option to exclude a component group from the checking.
      • Except Pad: Option to exclude a Padstack from the checking using string filter.
    • Clearance between Ground Wall and Vias: Check the clearance between the ground wall and vias.
      • Clearance: Set the clearance value between the ground wall and vias.
      • Exclude Blind Via: Option to exclude blind vias.
      • Exclude Buried Via: Option to exclude buried vias.
      • Exclude Via on Ground: Option to exclude vias that are connected to Ground Net.
        • Net Name: Select ground net from net list.
        • Net Name Filters: Set ground net using string filter.
    • Clearance between Ground Wall and Routing Pattern: Check the clearance between ground wall and routing patterns.
      • Clearance: Set the clearance value.
      • Exclude Ground Net: Option to exclude patterns connected to ground.