Same Net Spacing (Spacing)

Reports non-touching, non-text features closer than pp_spacing belonging to the same layer net.

Internal ERF Name	<Area>:self_spacing
Measurement Shape Measurement Value Measurement ID	Segment Distance None
Layers Displayed	Signal layer
Graphic
Purpose	Spacing (p2p, p2c, c2c) is measured only between features of different layer nets. There is a need to find spacing violations between features of the same net when this spacing is small and can potentially cause slivers.
Function	Reports non-touching, non-text features closer than pp_spacing belonging to the same layer net. Measurements are segments representing the distance. Does not report measurements involving features with attribute Copper Feature Ignore. To retain compatibility with prior software versions, this category is reported in the Results Viewer under ‘Same Net Spacing’.
ERF Parameters	pp_layer pp_spacing
ERF Variables	large_net_min self_spacing = yes
Constraint	Feature Spacing
Limitations	Due to performance considerations, nets considered drawn surfaces (that contain more features than specified in large_net_min) are not tested for ‘Same Net Spacing’ violations. Measurements are located arbitrarily between the contours of two parallel features. If the location happens to be over copper, that violation is not reported.