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Working with the Length Design Rule on a PCB in Altium NEXUS

Created: 9月 25, 2019 | Updated: 9月 26, 2019 | Applies to versions: 3.0, 3.1 and 3.2
現在、バージョン 3.0. をご覧頂いています。最新情報については、バージョン Working with the Length Design Rule on a PCB in Altium NEXUS の 4 をご覧ください。

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Rule category: High Speed

Rule classification: Unary

Summary

This rule specifies the minimum and maximum lengths of a net.

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 Defining, Scoping & Managing PCB Design Rules.

Constraints

Default constraints for the Length rule.Default constraints for the Length rule.

  • Length Units - choose this option to define the length as a distance.
  • Delay Units - choose this option to define the length as a time (how long the signal takes to travel along that length of route).
  • Minimum - the value for the minimum permissible length of the net.
  • Maximum - the value for the maximum permissible length of the net.

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 expression matches the object(s) being checked.

Rule Application

Online DRC and Batch DRC.

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