Min Via Spacing
Check different clearances between vias.
Depending on usage of vias, you can define different clearances.
- Target Objects Definition: Define target vias.
- Vias in Pattern Routing: Vias in routing pattern will be target objects.
- Mechanical Via: Vias not connected to routing will be target objects.
- Checking
- Clearance between Same Net’s connected Vias: If target vias are
routing vias, check the clearance between vias in the same net.
Figure 1. 
- Small Hole Size: While checking the clearance between two vias, use the clearance value with the small via hole size.
- Large Hole Size: While checking the clearance between two vias, use the clearance value with the large via hole size.
- Clearance between Different Net’s connected Vias: If target vias are
routing vias, check the clearance between via and via in a different net.
- Small Hole Size: While checking the clearance between two vias, use the clearance value with the small via hole size.
- Large Hole Size: While checking the clearance between two vias, use the clearance value with the large via hole size.
- Clearance between Same Net’s connected Vias: If target vias are
routing vias, check the clearance between vias in the same net.