Categories in Drill Checks

Several drill checks analysis tests can be run. For each test performed, results might be reported to the result categories available for that test. In the result category descriptions in this document, the test name is indicated in parentheses after the category name.

Table 1. Result Categories for Drill Checks
Category	Description
PTH Summary (Hole Size)	Reports the size of all PTH holes in the layer with attribute Drill Type = PTH.
NPTH Summary	Reports the size of all NPTH holes in the layer with attribute Drill Type = NPTH.
Via Summary (Hole Size)	Reports the size of all via holes in the layer with attribute Drill Type = Via.
Plated Slot Summary (Hole Size)	Reports the size of all plated slots in layer with attribute Drill Type = PTH.
Tooling Holes (Hole Size)	Reports all drill features with attribute Tooling Hole, and inserts each as a measurement.
Mounting Holes (Hole Size)	Reports all drill features with attribute Mounting Hole, and inserts each as a measurement.
Duplicate Holes (Hole Separation)	Reports holes whose centers are closer than duph_tolerance.
Touching Holes (Hole Separation)	Reports touching holes whose centers are further apart than ERF variable duph_tolerance.
Close Holes (Hole Separation)	Reports non-touching holes closer than close_hole_dist.
Missing Holes (Missing Holes)	Reports pads in the top and bottom layers of the drilled stack of the inspected drill layer where the appropriate conditions apply.
No Thermal (Thermal Connection)	Reports drills connected to a large plane (at least ten times larger than the drill) without an interceding thermal on negative and positive Power and Ground or mixed layers. Surfaces bearing the .tear_drop attribute are ignored.
TH Aspect Ratio (PCB Aspect Ratio)	Reports an aspect ratio for the smallest plated through hole in the layer, calculated as: <drill_span> / (<hole_size> + const).