Match And Fix Form

Use the Match And Fix form to identify layout patterns in a design and to fix them according to the fixing rules or guidelines associated with each pattern.

This form has the following tabs.

Tab	Description
General	Lets you define the scope of the options to be used for matching and fixing the layout patterns
Read	Lets you set one or more rule deck files and specify the set of rules to be applied to match and fix the layout pattern
Match	Lets you specify the options for matching the layout pattern.
Fix	Lets you specify the options for fixing the layout pattern.

General

Use the General tab to define the scope of the options to be used for matching and fixing the layout patterns. The following table describes the fields available on the General tab of the Match and Fix form.

Field	Description
*Operate On*	This section lets you specify the scope for running the Entire Cellview and View Area Only command.
Entire Cellview	Specifies the matching and fixing of the layout patterns be done on the entire cellview.
View Area Only	Specifies the matching and fixing of the layout patterns be done on the view area only.
*Options*	This section lets you specify whether or not the matching and fixing of the layout patterns is done only on the shapes at the top level of the open design.
Top Level Only	Specifies matching and fixing of the layout patterns be done only on the shapes at the top level of the open design. Fixing of layout patterns can only be done at the top level of the open design.
*Steps*	This section lets you control whether to perform the match or to perform the automatic fixing of matched patterns or violations. Enabling either of these flows also enables modification of the corresponding tabs in the form.
Match Rules	Performs matching of layout patterns and enables modification of the options on the Match tab.
Fix Rules	Performs automatic fixing of the matched layout patterns and enables modification of the options on the Fix tab.
Layers	Lets you choose the layers on which the matching and fixing should be applied.

Read

Use the Read tab to set one or more rule deck files and specify the active rules to be applied to match and fix the layout pattern.

A rule deck file defines pattern-based manufacturability checks. These match and fix rules are composed of a pattern definition and corresponding fixing rules. Consult with your foundry for a compatible rule deck file.

Field	Description
Rule Deck Files	Enables you to load the layout patterns from one or more rule deck files.
Add	Add the files.
Read	Reads the rules specified in the selected rule deck files and import the active rules to be applied to match and fix the layout pattern.
Delete	Deletes a file.
Rules Filtering	Specifies the set of rules to be applied from the loaded rule deck files.
All Rules	Specifies that all rules from the selected rule deck files be applied to match and fix layout patterns. By default, the option is ON.
Inactive Rules	Specifies the list of rules that should not be applied to match and fix layout patterns.
Active Rules	Specifies the list of rules that should be applied to match and fix the layout patterns.

Match

Use the Match tab to specify the options for matching the layout pattern.

The following table describes the fields available on the Match tab of the Match And Fix form.

Field	Description
*Output*	This section lets you controls whether or not to return an annotation for each match to the annotation browser and specifies the limit of the number of matched returned.
Annotate	Controls whether or not to return an annotation for each match to the annotation browser.
Limit Annotations	Specifies the limit of the number of matches returned. By default, the number of matches returned are limited to 1000.
*Use Multithreading*	This section lets you specify whether to enable multi-threaded search for additional efficiency while performing the match. By default, the Use Multithreading option is OFF.
Threads	Specifies the number of threads to used for matching the layout pattern.
Total	Specifies the number of processors available on the station.
Available	Specifies the difference between the total and used processors on the station.

Fix

Use the Fix tab to specify the options for fixing the layout pattern.

The following table describes the fields available on the Fix tab of the Match And Fix form.

Field	Description
*Override Grid Type*	This section enables you to override the default grid type being used in the layout.
Manufacturing	Specifies that the manufacturing grid be used and all shapes in the layout be snapped to this grid.
Routing	Specifies that the routing grid be used and all shapes in the layout be snapped to this grid.
*Options*	This section lets you specify the parameters for fixing the layout pattern.
Use Fill Shapes	Specifies use of fill shapes for fixing the layout pattern.
Allow Ripup	Specifies local ripup and reroute fixing be allowed for fixing the layout pattern.
Incremental Check	Controls the fixing engine to incrementally call the matching engine to check whether or not an active layout pattern has been introduced while fixing the layout pattern.
Annotate Processed Markers	Controls whether additional markers be added to the annotation browser to show the region of the layout that has been modified while fixing the layout pattern.
Clear Fixed Markers	Controls display of fixed matches or violations in the annotation browser. If this option is selected, all fixed markers are cleared from the Annotation Browser, otherwise, the fixing step does not clear any of the markers from the matching step.

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