minSpanLengthExtensionSpacing

orderedSpacings(
( minSpanLengthExtensionSpacing tx_metalLayer tx_cutLayer
 'spanLength f_spanLength
 'minLength f_minLength
 'prl f_prl
 'edgeExtension f_extension
 f_spacing
)

) ;orderedSpacings

(Virtuoso Advanced Node for Layout Only) Defines the spacing between a metal edge that encloses a via cut and a neighboring metal edge with which it shares the required parallel run length. The metal edge that encloses the via cut must satisfy the given spanLength and extension criteria. Additionally, both metal edges must satisfy the specified minLength criterion.

Values

tx_metalLayer	The metal layer on which the constraint is applied. Type: String (layer and purpose names) or Integer (layer number)
tx_cutLayer	The cut layer on which the constraint is applied. Type: String (layer and purpose names) or Integer (layer number)
f_spacing	The spacing between the metal edges must be greater than or equal to this value.

Parameters

'spanLength f_spanLength
	The metal edge that encloses a via cut must have span length greater than or equal to this value.
'minLength f_minLength
	Both metal edges must have length greater than this value.
'prl f_prl	The parallel run length between the two metal edges must be greater than this value. The via cut must also overlap with the common parallel run length of the two metal edges.
'edgeExtension f_extension
	The via cut must have an extension less than this value from the metal edge with span length greater than or equal to spanLength.

Example

The spacing between two neighboring Metal1 edges, one of which encloses a Via1 cut, must be greater than or equal to 0.07 if the following conditions are satisfied:

• Both metal edges are greater than 0.05 in length.
• The metal edge that encloses the via cut has span length greater than or equal to 0.1 and an extension of less than 0.01.
• The parallel run length between the two metal edges is greater than 0.03.

orderedSpacings(
    ( minSpanLengthExtensionSpacing "Metal1" "Via1" 
     'spanLength 0.1 
  'minLength 0.05 
  'prl 0.03 
  'edgeExtension 0.01 
  0.07
 )
) ;orderedSpacings

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