The-OpenROAD-Project_OpenROAD-flow-scripts/flow/platforms/gf180/setRC.tcl

set_layer_rc -layer Metal2 -resistance 2.25636E-04 -capacitance 1.35357E-04
set_layer_rc -layer Metal3 -resistance 2.25636E-04 -capacitance 1.46141E-04
set_layer_rc -layer Metal4 -resistance 2.25637E-04 -capacitance 1.50688E-04
set_layer_rc -layer Metal5 -resistance 5.85545E-05 -capacitance 1.55595E-04

regexp {(\d+)} $::env(METAL_OPTION) metal

if { $metal == "6" } {
  set_wire_rc -signal -layer Metal2
  set_wire_rc -clock -layer Metal5
} elseif { $metal == "5" } {
  # TC matches LEF.  These are the temperature adjusted values.
  # The other stacks are likely similar but I haven't checked yet.
  if { $::env(CORNER) == "WC" } {
    set_layer_rc -via Via1 -resistance 16.845
    set_layer_rc -via Via2 -resistance 16.845
    set_layer_rc -via Via3 -resistance 16.845
    set_layer_rc -via Via4 -resistance 16.845

    set tech [ord::get_db_tech]
    foreach via [$tech getVias] {
      if { [$via getResistance] == 4.5 } {
        $via setResistance 16.845
      }
    }
  } elseif { $::env(CORNER) == "BC" } {
    set_layer_rc -via Via1 -resistance 4.23
    set_layer_rc -via Via2 -resistance 4.23
    set_layer_rc -via Via3 -resistance 4.23
    set_layer_rc -via Via4 -resistance 4.23

    set tech [ord::get_db_tech]
    foreach via [$tech getVias] {
      if { [$via getResistance] == 4.5 } {
        $via setResistance 4.23
      }
    }
  }

  set_wire_rc -signal -layer Metal2
  set_wire_rc -clock -layer Metal4
} elseif { $metal == "4" } {
  set_wire_rc -signal -layer Metal2
  set_wire_rc -clock -layer Metal3
} elseif { $metal == "3" } {
  set_wire_rc -signal -layer Metal2
  set_wire_rc -clock -layer Metal2
} elseif { $metal == "2" } {
  set_wire_rc -signal -layer Metal2
  set_wire_rc -clock -layer Metal2
}