Virtuoso XL Layout Editor User Guide

Editing Your Layout with Virtuoso XL Layout Editor

Important

Do not assign a component master to more than one type.

5.In the Edit parameters cyclic field, select the name of the first placement parameter you want to set for the cells in this type. See “Setting Componentypes”T on page 227 for more information.

6.Fill in the value.

7.Select the next parameter and set its value.

Continue until you have set all of the required parameters and all of the optional parameters you wish to set.

8.Set the value of Component Class to NMOS or PMOS for MOS transistors, or to STDCELL or FILLER for those elements, or to Undefined otherwise.

9.Click Apply at the top of the form to complete the type definition.

To define additional types, repeatStep 3 through Step 9.

Modifying a Component Type

Use the Edit Component Types form to change component type definitions.

Note: Be sure that the scope of the types you are editing (library or cell) is appropriate. It is possible to modify a component type at a narrower scope than the one with which it was created (changing library-wide type definitions for just one cell, for example). This might not be the result you want.

1.Select Design – Component Types.

The Edit Component Types form appears.

2.Choose the scope of the component types you want to edit.

3.Choose a type.

4.(Optional) Highlight masters or instances in the Components in Type list and select

<<< to remove them from the type.

5.(Optional) Select a parameter in the Edit Parameter field, and type a new value.

6.Check that Component Class is set to the correct value.

7.Select Apply to save your changes.