Product Documentation
Virtuoso Technology Data Constraints Reference
Product Version IC23.1, November 2023

stackable

spacings(
( stackable tx_cutLayer1 tx_cutLayer2 
 {t | nil} 
)
) ;spacings

Determines whether the specified cut layers can be stacked.

This constraint applies only to layers with function cut or li. Layers not identified as stackable by this constraint cannot be stacked.

Values

tx_cutLayer1

The first layer on which the constraint is applied.

Type: String (layer and purpose names) or Integer (layer number)

tx_cutLayer2

The second layer on which the constraint is applied.

Type: String (layer and purpose names) or Integer (layer number)

t | nil

If t, the layers can be stacked; if nil, the layers cannot be stacked.

Parameters

None

Example

Layers Via1 and Via2 can be stacked.

spacings(
    ( stackable "Via1" "Via2" 
     t 
)
) ;spacings

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