Degassing Hole

Check whether the design complies the degassing hole rules in semiconductor package design.

  • Degassing Hole Definition
    • Hole Shape: Define the hole shape of Degassing Hole.
      Figure 1.


    • Width/Height: Define the width and height of Degassing Hole.
  • Cavity Definition
    • Define Cavity region from Specific Layer: Select a layer drawn Cavity region.
    • Define Cavity Layer Stack by Name Filter: Define a layer containing a specific string as a Cavity area.
      • Import(.txt): Apply Filter Type based on the characters entered in the .txt file.
        • Apply as a prefix when (|F|) ABC is entered in the .txt file.
        • Apply as a mid-string when ABC is entered in the .txt file.
        • Apply as a suffix when ABC(|P|) is entered in the .txt file.
      • Export(.txt): Export the characters registered in the String Item in .txt file format.
  • Checking (RDL / CORE / BRDL)
    Figure 2.


    • Clearance to Degassing Hole: Clearance checking between Degassing Holes.
      • Same Layer: Clearance checking between the target Degassing Hole and the Degassing Hole on the same layer.
      • Upper Layer: Clearance checking between the target Degassing Hole and the Degassing Hole in the upper layer.
      • Lower Layer: Clearance checking between the target Degassing Hole and the Degassing Hole in the layer.
    • Clearance to Pattern: Clearance checking between the Degassing Hole and pattern.
      • Same Layer: Clearance checking between the target Degassing Hole and the pattern on the same layer.
      • Upper Layer: Clearance checking between the target Degassing Hole and the pattern in the upper layer.
      • Lower Layer: Clearance checking between the target Degassing Hole and the pattern in the layer.