Purpose

Pads that are too close together should be separated with a small dam of mask to protect against solder bridging.

Function

Reports close distances between non-SMD pads whose solder mask clearances touch each other, that are less than the pp_ar action parameter. That is, two different net pads that do not have a solder mask bridge between them.

Measurements are segments between pads.

Activation

 

Known Limitations

Since the pp_ar parameter is used by this check, its value must be increased to at least twice the nominal annular ring value for this check, in order to report any violations. This may cause a minor slowdown in the performance of the annular ring check.