Product Documentation
Virtuoso Multi-Patterning Technology User Guide
Product Version IC23.1, November 2023

Color Locking

In layout, there are two types of color locks that can be assigned to a shape:

By default, both of these methods operate on selected shapes. You can also operate on the selected shapes and shapes that are connected to them on the same layer, as described in Color Locking on Connected Shapes.

New shapes created by functions such as copy, move, and MakeCell, will not inherit the color attributes of the original shape. When shapes are moved to connect to locked shapes, locks are not propagated automatically. To change the default behavior, see Color Locking on Connected Shapes.

In addition, colors can be locked on shapes, vias, and blockages using SKILL functions, as described in Virtuoso MPT SKILL Functions.

There is a special process for Color Locking Support for Synchronous Clones.


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