Product Documentation
Virtuoso Space-based Router Command Reference
Product Version IC23.1, September 2023

Constraints Used When Shielding Nets

The following constraints are used when shielding nets:

Constraint Name Constraint Group Description (Constraint Type, Value Type)

minWidth

Shield

(Layer, Value) Width of parallel shield wires and tandem split shields

minSpacing

Shield

(Layer, Value) Spacing between the parallel shield wires and the net it is shielding and between tandem shields and tandem split shields

tandemWidth

Shield

(Layer, Value) Width of tandem shield wires

tandemLayerAbove

Shield

(Layer, LayerValue) Layer above the given signal layer to use for tandem shields

tandemLayerBelow

Shield

(Layer, LayerValue) Layer below the given signal layer to use for tandem shields

shareShields

Design

(Simple, BoolValue) Determines whether shield wires can be shared between nets

ignoreShieldingOnLayers

Default

(Simple, LayerArrayValue) Prevents shields from being added on the given layers

msShieldStyle

Shield

(Simple, IntValue) Determines the type of shielding to route around a net.

Related Topics

Configuring Shield Wires

Controlling Shield Options

Shielding by Route

Setting the Shield Type

Shield Routing Commands


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