Tests Performed in Signal Layer Checks

Several signal 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.

Spacing — Reports spacing violations between pads, circuits and nets, and between text to text. Also reports shorts and spacing between different CAD nets and close distances between non-touching features on the same CAD or Layer nets.

Drill — Reports distance violations between NPTHs, PTHs, Vias, and pads, circuits, annular rings and copper. Also reports missing pads.

Size — Reports sizes of pads, shaved lines, text, line neckdowns, arcs and shaved arcs.

Sliver — Reports on slivers between lines and pads or between pads and pads. Slivers between two features with the Copper Text attribute are ignored. However, a sliver between a text feature and a functional pad are reported. See “Sliver and Short Sliver Categories (Signal Layer Checks)”.

Stubs — Reports unconnected line endpoints.

SMD — Lists SMD pads, reports on pitch of SMD pads, and identifies SMD packages.

Bottleneck — Reports thin copper surfaces which could break during assembly.

Exposure — reports distances between exposed vias to exposed vias, toeprints, or copper on outer layers.