PSR Covered Via

PSR (Photo Solder Resistor) is used to protect circuit pattern from oxidation and bridge in soldering process.

• Target Via Definition: Define the target Vias.
  • Padstack String Filter: Define the via using string filter.
    • 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
  • Detect Vias, un-covered with Solder Mask: For all Vias, check whether they are covered with solder mask. If they are not covered with solder mask, they are fails.
  • Detect Vias, covered with Solder Mask: For all Vias, check whether they are covered with solder resistor. If they are covered with solder mask, they are fails.
    • Exclude Options: For Vias having given hole size, exclude them in checking.
      • Via Hole Size Range: Set excluding Via hole’s size range using floating value input tool.
      • Vias in Pad Area: If the target component pad and via overlap, exclude them from the inspection.
        • Target Component: Select the target component group.
          • All: Select All component.
          • Component Group: Select the target component group from the list.
        • Via Measure Base: Select the Via measure base.
          • Pad Shape: Check based on Via Pad Edge.
          • Hole Shape: Check based on Via Hole Edge.
          • Via Location: Check based on Via Center.