antennaCreditRatio

spacings(
( antennaCreditRatio 
 tx_layer
 'OXIDEn 
 f_creditRatio
)

) ;spacings

(Virtuoso Layout Suite EXL and higher tiers) Specifies the minimum ratio between the sum of the credit provided by each protection device of a specified antenna model and the area of a specified metal layer.

Values

tx_layer	The metal layer to which the constraint applies.
f_creditRatio
	The minimum ratio.

Parameters

'OXIDEn

The antenna model whose credit sum value is to be used. It can be one of 32 values ranging from OXIDE1 to OXIDE32. See also antennaModels.

Example

The minimum metal area to antenna credit ratio for Metal1 on OXIDE8 is specified as follows.

(antennaCreditRatio 
    "Metal1" 
    'OXIDE8 
    100.5 
)

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