Product Documentation
Virtuoso Space-based Router Constraint Reference
Product Version IC23.1, June 2023

lengthPatternDangle

Specifies a dangle style to use when lengthening wires during performing matched length routing.

lengthPatternDangle Quick Reference

Constraint Type

Simple

Value Types

IntValue

Database Types

Design, Technology

Scope

design, foundry

Category

Mixed Signal Routing

Value Type

IntValue

Specifies the dangle style.

By default, dangles are not used for elongation. This constraint must be set to a valid value to enable the use of dangles.

Valid Values:

  • 1 Extends the ends of segments. This can be a preferred method of elongation to avoid wrong-way routing.

Examples

Enables elongation when performing matched length routing by extending ends of segments.

set_constraint -constraint lengthPatternDangle -IntValue 1

Related Topics

Mixed-Signal Routing Constraints


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