Creating an Identical Guard Ring Using the Array

To create an Identical Guard Ring (IGR) using the Array Assistant:

Open the Guard Ring tab of the Array Assistant.
Select IGR from Type.
Select a Net connection for the guard ring.
Select an IGR definition from the IGR list. The IGR definition provided by the PDK defines all aspects of the guard ring, for example, the unit cell lib:cell:view, its parameters, and parameter callbacks, which helps the Modgen instantiate the guard ring correctly.
Select one of the following IGR types:
- Surround: The IGR surrounds all the instances.
- Surround+Strip: The IGR surrounds all the instances, and strips of guard ring instances are inserted between one or more Modgen rows.
- Grid: The IGR surrounds every instance or group of abutted instances separately.
Select the sides around the Modgen on which you want to add guard rings: Left, Right, Bottom, Top. By default, all sides are selected.
Specify the strip width by specifying the number of fins in the Strip Width in Fins field.
Specify the number of rows to be inserted between strips of IGRs in the Rows Between Strips field.
Click OK.

An IGR is created as per your specifications.