Specifying the Grids

To set the routing grid for a metal layer, use set_routing_grid. For example:

set_routing_grid -layer M1 -x 0.28 -y 0.28 -x_offset 0.0 -y_offset 0.0

To set the routing grid for a via layer, use set_via_grid. For example:

set_via_grid -layer V12 -x 6 -y 8 -x_offset 3 -y_offset 3

To change the manufacturing grid for a layer, use change_layer. For example:

change_layer -name M1 -manufacturing_grid 0.05 -tech_lib $lib_name