Technology Database WSPs

WSPs that are defined in a technology database can be used by all cellviews that are attached to that library.

To create width spacing patterns in the technology file, you set the following:

• Definition of pattern-related constructs
  

  Construct	Required/Optional
  widthSpacingPattern	Required
  widthSpacingPatternGroups	Optional
  widthSpacingSnapPatternDefs	Required
  relatedSnapPatterns	Optional

• Placement and Alignment constraints
  These constraints enable WSSPDefs to be used in the global grid for layout editing. The library-wide default set of enabled global WSSPDefs can be specified by a snapGridVertical and/or snapGridHorizontal constraint in the ASCII technology file foundry constraint group. These constraints can be overridden in the design to enable WSSPDefs other than the global defaults, as described in Specifying the Active Patterns.