ignoreShieldingOnLayers

Specifies the layers on which shields must not be created.

ignoreShieldingOnLayers constraints have a LayerArrayValue that prevents shields from being routed on the layers in the list.

This example prevents shielding on layers Metal2 and Metal3.

Format	Example
Tcl	set_constraint -constraint ignoreShieldingOnLayers \ -LayerArrayValue {Metal2 Metal3}