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

Tap Cells Form

The following table describes the fields available in the Tap Cells form.

Field Description

Show selected only

Clears all filters field shows only selected cells.

Clear selected

Deselects all cells.

Choose Library

Opens the Library Browser from which you can select the library that contains the required cells. A list of layout and abstract views in the selected library are displayed in the Cells pane.

Cells

Lists cells that have their component class set to STDSUBCONT. You can select the required tap cells from the list.

If, by default, no tap cells are listed, click Choose Library and select a library from the Library Browser. A list of layout and abstract views in the selected library are displayed in the Cells pane.

Tap to Tap spacing

Lets you specify the tap-to-tap spacing for tap cells. This value comes from the Design Rule Manual (DRM).

Pattern

Lets you select a pattern to place the tap cells. The options are: Regular and Checkerboard.

Skip Row Count

Specifies the rows that must be skipped during tap cell placement.

Start Row Number

Specifies the row number to place the tap cells.

Offset from Row Start

Specifies the initial offset of the first tap cell in each row.

Avoid Abutment

Specifies whether the tap cells must not be abutted vertically.

Well Pitch

Specifies the minimum spacing between individual components placed in the placement area.

Well Offset

Defines an offset from the specified alignment. This lets you leave a channel around the edge of the placement area, or align the rail slightly off-center. Both positive and negative offset values are honored.

Related Topics

Automated Standard Cell Placement and Routing User Interface

Auto P&R Assistant User Interface for Standard Cell


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