<technology name="example" unit="micro" version="rev.A">
   <physical_rules>
     <!-- transistor -->
     <rule  name="transistorMinL"                                         value="0.10"   ref="ref1"/> 
     <rule  name="transistorMinW"                                         value="0.20"   ref="ref2"/>

     <!-- minWidth -->
     <rule  name="minWidth"           layer="metal1"                      value="0.15"   ref="ref3"/>

     <!-- minSpacing -->
     <rule  name="minSpacing"         layer="metal1"                      value="0.20"   ref="ref4"/>
     <rule  name="minSpacing"         layer1="active"   layer2="poly"     value="0.10"   ref="ref5"/>

     <!-- minExtension -->
     <arule name="minExtension"       layer1="poly"     layer2="active"   value="0.20"   ref="ref6"/>

     <!-- minArea -->
     <rule  name="minArea"            type="area"       layer="metal1"    value="0.100"  ref="ref7"/>
  </physical_rules>
</technology>

