LEF_SHRINKAGE

spacings(
( LEF_SHRINKAGE tx_layer
 f_dist
)

) ;spacings

Specifies the value to account for the shrinkage of interconnect wiring due to the etching process. Wire widths are determined by subtracting this constant value.

Values

tx_layer	The layer on which the constraint is applied. Type: String (layer and purpose names) or Integer (layer number)
f_dist	The required shrinkage.

Parameters

None.

Example

The shrinkage for Metal1 is 0.0001.

spacings(
    ( LEF_SHRINKAGE "Metal1"  
     0.0001 
 )
) ;spacings

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