Requirements for Metal Density Calculation

All layers being abstracted should have a minimum density value specified in the technology file. The maximum density value is al. If a step size exists for both maxDensity and minDensity constraints, the value should match.

constraintGroups(
 ("foundry"
   spacings(
     ("minDensity" tx_layer g_density)
       ...
   ) ;spacings
  ) ;foundry
);constraintGroups

constraintGroups(
 ("foundry"
   spacingTables(
      ("minDensity" tx_layer
      ( ("step" nil nil) [ g_defaultValue ] )
      (g_table) )
   ) ;spacingTables
  ) ;foundry
);constraintGroups

Related Topics

Incremental Technology Databases

Technology File Structure