minVoltageExtension

spacingTables(
( minVoltageExtension tx_layer1 tx_layer2 
 (( "voltage" nil nil )
 ['horizontal | 'vertical]
 ) 
 (g_table)
)

) ;spacingTables

(Virtuoso Advanced Node for Layout Only) Specifies the minimum extension of a layer1 shape past a layer2 shape when the voltage on layer1 is greater than or equal to the specified value.

Values

tx_layer1	The first layer on which the constraint is applied. The shape on this layer encloses a shape on tx_layer2. Type: String (layer and purpose names) or Integer (layer number)
tx_layer2	The second layer on which the constraint is applied. The shape on this layer is enclosed. Type: String (layer and purpose names) or Integer (layer number)
`"voltage" nil nil`
	This identifies the index for table.
g_table	The format of the table row is as follows: `(`f_voltage f_extension`)` where, f_extension is the extension of the layer1 shape past the layer2 shape. The layer1 extension on all four sides must be greater than or equal to f_extension if the voltage on layer1 is greater than or equal to f_voltage. Type: A 1-D table specifying floating-point extension and voltage values

Parameters

'horizontal | 'vertical

The constraint applies only to the extensions measured in this direction. If direction is not specified, the extension is measured in any direction.

Type: Boolean

Examples

Example 1: minVoltageExtension with voltage

The extension of an Nwell shape past a Pdiff shape must be as follows:

At least 0.05 if the voltage on the Nwell shape is greater than or equal to 1.0 and less than or equal to 1.5
At least 0.07 is the voltage on the Nwell shape is greater than or equal to 1.5

Example 2: minVoltageExtension with direction

This example illustrates the use of the direction parameter.

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Virtuoso Technology Data Constraints ReferenceProduct Version IC23.1, November 2023