Product Documentation
Virtuoso Studio What's New
Product Version IC23.1, November 2023

19

What’s New in Virtuoso Electrically Aware Design


This topic provides a high-level overview of the new features in the IC23.1 release.

IC23.1 ISR2


Displaying the Check Layer Mapping Option

The Check Layer Mapping check box is now hidden from the Options menu of the EAD Browser. Set the environment variable layoutEAD.gui hideCheckLayerMapping to nil to view this option in the EAD Browser.


Specifying the Current Distribution Method to Generate EAD Datasets

You can now use the environment variable layoutEAD.em autoDatasetDistributionMethod to specify the current distribution method to be used when generating EAD datasets. The default distribution method is Aspect ratio.


Displaying the Recommended Number of Tracks

You can now use the environment variable layoutEAD.gui showRecommendedTracks to show the recommended number of tracks in the EM Results table. The default value of the environment variable is nil.




IC23.1 ISR1


Displaying High Precision C Extraction and High Precision R Extraction Options

The High Precision C Extraction and High Precision R Extraction options are now hidden by default. Set the environment variable layoutEAD.gui hideHPRCExtraction to nil to view these options in the context menu when you right-click any net in the Net Summary Table of the EAD Browser.


Running EM Analysis using a SKILL Function

Use the SKILL function eadRunEM to run EM analysis on all nets or a list of specified nets in the specified layout design.


Exporting Data from the Net Summary Table using a SKILL Function

Use the SKILL function eadSaveSummaryTableToCSV to export data from the Net Summary table of the EAD Browser to the specified CSV file.


Retreiving a List of All EM Datasets Present in the Current Design

Use the SKILL function eadGetAllEMDatasets to retrieve a list of EM datasets in the current design.


Setting a Dataset as the Active Electrical Dataset

Use the SKILL function eadSetCurrentDataset to set the specified dataset as the active electrical dataset in the EAD Browser of the specified layout cellview.


Calculating Vmin and Vmax Values for a Terminal in a Dataset

Use the SKILL function elecGetVoltageData to calculate Vmin and Vmax values for the specified terminal in a dataset.




IC23.1 Base


Quantus-Pegasus Integration with EAD for Partial Layouts

This feature provides sign-off level accuracy by combining parasitics extraction and physical verification sign-off capabilities of Cadence® Quantus™ Extraction Solution and Cadence® Pegasus™ Verification System, respectively. This flow requires all devices to be placed in the layout; the position of these devices may however, not be the final. This flow enables the user to specify a reference net, known as the ground net, before extraction rather than before simulation. This enables quicker feedback loop to run layout-aware re-simulation and to tune the circuit performance early without waiting for a complete LVS-clean layout








 ⠀
X