Product Documentation
Virtuoso Automated Standard Cell Placement and Routing Flow Guide
Product Version IC23.1, November 2023

Pull Back and Offset Values Form

Use the Pull Back and Offset Values form to specify the distance the stripes should be pulled inward from the PR boundary on the ends and which strips should not be created on the other two sides. This helps to avoid shorts or DRC spacing errors if the blocks are abutted. The pull back value can be different for each layer and each side, depending on the routing layer direction.  

Column Description

Load

Lets you select the pull back file to be loaded from the Open Pullback File dialog box. The pull back values are loaded from the text file.

Clear

Clears the information of the loaded pull back file.

Layer

Displays the layer name.

Direction

Displays the routing direction of the layer.

Left/Bottom/Right/Top

Lets you specify the pull back value for each side of the routing direction. This value is read as per the direction. If a single value is provided, it is applicable for both sides.

Related Topics

Automated Standard Cell Placement and Routing User Interface

Routing Assistant User Interface for Standard Cell


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