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

minTaperWindow

Specifies the distance away from a terminal that must adhere to the taper rule constraints. Between minTaperWindow and maxTaperWindow, the router is permitted to switch to the net’s constraints at any time, usually cost-based, but once the switch away from taper constraints is made, it cannot be switched back.

Usually, tapering is used only when needed to connect a wide wire to a smaller terminal. Setting this constraint forces tapering within the minTaperWindow distance from the terminal.

minTaperWindow Quick Reference

Constraint Type

Simple

Value Types

Value

Database Types

Design, Technology

Scope

taper group for term or instTerm, inputTaper and/or outputTaper group for nets

Category

Routing

Value Type

minTaperWindow constraints have a Value that represents the minimum distance from a terminal that must adhere to the taper rule constraints.

Examples

Format Example

Tcl

set_constraint -constraint minTaperWindow -Value f_distance

Related Topics

Routing Constraints


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