Guide Hole

Validate the guiding hole in the PCB's design.

The Guide Hole dialog contains the following sections:
  • Guide Hole Definition: Define the target guiding hole to analyze.
    • Component Group Selection: Set the component group from the parts list. Use if a component is used as a guiding hole.
    • Via (NPTH): Set the via from the via list. Use if a via is used as a guiding hole.
    • Board Figure Geometries: Define the hole length and diameter. Use if board figure geometries are used as a guide hole.


      Figure 1.
  • Guide Hole Searching Ranges from Board Corner: Set the area where the guiding hole is located. Specify area values with dX and dY from the board corners. Refer to Figure 2.


    Figure 2. Guide Hole Searching Ranges from the Board Corner
  • Circle Type Guide Hole Checking
    • Circle Guide Hole Counting: Verify the number of circle type guide holes at specified regions.


      Figure 3.
      • Number of Total Guide Hole: Verify the number of guide holes.
      • Counting: Verify the number of guide holes in the upper and lower side of the PCB.
      • Diagonal Counting: Verify the number of guide holes in the diagonal sides.
        • Left Top, Right Bottom: Set the number of guide holes in these regions.
        • Right Top, Left Bottom: Set the number of guide holes in these regions.
    • Circle Type Guide Hole Location: Verify the guide holes in each board corner. The table rows each correspond with the four corners of the PCB.


      Figure 4.


      Figure 5.
  • Center Guide Hole Checking
    • Major Axis Existence: Verify the center guide hole is on the major axis of the board.
    • Minor Axis Existence: Verify the center guide hole is on the minor axis of the board.
    • Tolerance: Input the tolerance value from the center of the boards major or minor axis.
    • Check Single Guide Hole: Verify there is only one center guide hole.
  • Ellipse Type Guide Hole Checking
    • Ellipse Guide Hole Counting: Verify the number of ellipse type guide holes at specified regions.


      Figure 6.
      • Number of Total Guide Hole: Verify the number of guide holes.
      • Counting: Verify the number of guide holes for the upper and lower side of the PCB.
      • Diagonal Counting: Verify the number of guide holes at the diagonal sides of the PCB.
        • Left Top, Right Bottom: Set the number of guide holes in these regions.
        • Right Top, Left Bottom: Set the number of guide holes in these regions.
    • Ellipse Type Guide Hole Location: Verify there are guide holes in each corner. The table rows each correspond with the four corners of the PCB.


      Figure 7.


      Figure 8.
  • Clearance between Guide Hole and Components
    • Clearance Table: Set and assign a clearance value for the component group. Use PollEx DFM to verify the clearance between the component outline and the guide hole edge.


      Figure 9. Clearance Table Example
    • Remainder: Assign a clearance value for the undefined components in the table.
  • Checking the location of Guide Hole, matching with Board Origin:
    • Guide Hole Selection: Select the target corner of the board.
    • Clearance between Guide Hole and Board Outline: Set the clearance value between the guide hole and the selected board corner.
  • Clearance Checking:
    • Include Checking for Center Guide Holes: Verify the inclusion of the center guide hole selected in the Center Guide Hole Checking is necessary.
    • Clearance to Route Pattern: Verify the clearance between the guide hole and route pattern.