antennaDiffusionWidthRatio

spacings(
( antennaDiffusionWidthRatio 
 tx_layer
 ['insideLayers (tx_layer1 tx_layer2 … tx_layerN)
  ['insidePurposes (t_purpose1 t_purpose2 … t_purposeN)]]
 'OXIDEn 
 f_diffWidthRatio
)

) ;spacings

(Virtuoso Layout Suite EXL and higher tiers) Specifies the minimum ratio between the area of a specified metal layer and the sum of diffusion widths of all devices of a specified antenna model.

Values

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

Parameters

'insideLayers (tx_layer1 tx_layer2 … tx_layerN)
	The constraint applies only if the shapes on tx_layer overlap a shape on one of these layers. For more information, see Region-based Rule (One layer). Type: String (layer name) or Integer (layer number)
'insidePurposes (t_purpose1 t_purpose2 … t_purposeN)
	The insideLayers parameter is limited to the specified purposes. Type: String (purpose name)
'OXIDEn	The antenna model to which the constraint applies. It can be one of 32 values ranging from OXIDE1 to OXIDE32. See also antennaModels.

Example

The minimum metal area to antenna diffusion width ratio for Metal1 on OXIDE1 is specified as follows. The ratio applies to Metal1 shapes connected to OXIDE1 type devices, identified by overlap with shapes on the LPP devTypeLayer, OXIDE1Purpose.

(antennaDiffusionWidthRatio 
    "Metal1" 
    'insideLayers ("devTypeLayer") 
    'insidePurposes ("OXIDE1Purpose")
    'OXIDE1 
    200.1 
)

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