Altium Designer Documentation

Creepage Distance

Modified by Tiffany Cullen on Feb 9, 2020
All Contents

Rule category: Electrical

Rule classification: Binary

Summary

This rule tests the creepage distance between the targeted signals across the board surface through unplated holes, cutouts, and around the board edge. 

All design rules are created and managed within the PCB Rules and Constraints Editor dialog. For a high-level view of working with the design rules system, see Constraining the Design - Design Rules. For detailed information regarding how to target the objects that you want a design rule to apply to, see Scoping Design Rules.

Constraints

Default constraints for the Creepage distance rule.

  • Creepage distance - a rule violation is flagged when any point on the First Object is equal to or less than the distance from any point on the Second Object.
  • Ignore Internal Layers - use this option to ensure the rule will only be applied to outer layers.

How Duplicate Rule Contentions are Resolved

All rules are resolved by the priority setting. The system goes through the rules from highest to lowest priority and picks the first one whose scope expressions match the objects being checked.

Rule Application

Online DRC, Batch DRC, and during autorouting.

Tips

  •  The rule identifies the closest points on the targeted nets and checks the distance between them in the X,Y, and Z planes.

 

 

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