Product Documentation
Virtuoso Layout Suite XL: Connectivity Driven Editing User Guide
Product Version IC23.1, November 2023

Array Generation - Modgen

An array of instances that are grouped in a modgen constraint and have same or different connectivity and masters.

You can choose to abut all the modgen instances to generate a compact placement or specify the spacing values and reference layers for X and Y spacing, as appropriate. By default, the spacing is DRC correct and no reference layers are specified.

Alternatively, you can use the generateModgens environment variable to generate a modgen array.

Cadence recommends that you generate a modgen if it is likely that the array will require updating after placement. To update the modgen, run the Modgen Editor.

The selected components are generated in the layout as a group and are combined in a modgen constraint, as shown in the figure below.

Related Topics

generateModgens

Modgen Editor

generateXSpacing

generateYSpacing

Array Generation

Array Generation - Mosaic

Array Generation - Group Array

Generate Selected Components Form


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