Visualizing EM-IR Analysis Results using Voltus-XFi Results Browser

You can analyze the EM and IR drop violations in detail using the Voltus-XFi Results Browser assistant. Do the following:

1. On the Voltus-XFi Results Browser, click Load EMIR Results to load the results database.
2. Select a net in the Net Summary (top) section and click Load Nets . Alternatively, you can either double-click a net name or select the Load Nets option from the shortcut menu of the net to view net details.
   
   You can select one or multiple nets in the Net Summary section.
   Details of all nodes/resistors/paths of the net appear in the lower section of the assistant as follows:
   
   
   If you mouseover the EM Violation Count column in the Net Summary section, a tooltip appears showing you the violations for each EM analysis type.
   
   
   
3. Depending on whether you want to view the EM or IR drop plots, select the required tab in the lower section of the assistant.
4. Click the Plot Results ( ) icon to view the heat map plot for the complete net. You can use the down arrow to adjust the transparency of the layout.
5. Select a plot type from drop-down list.
6. Select a node/resistor in the lower section of the assistant.
   The node/resistor is highlighted on the layout. The following image shows a node selected in the IR tab.
   
   
   You can view the layer-based heatmap by clicking the Filter Layer from Results drop-down button in the IR or EM tab, select Hide All Layers, and then select the required layers.
   The following image shows a resistor selected in the EM tab.
   
   
   The EM tab shows resistors that violate EM in red to easily identify EM violations.

Related Topics

• The Voltus-XFi Results Browser Graphical User Interface
• Performing LRP Analysis
• Viewing EM-IR Analysis Reports
• Viewing Waveform Results
• Querying Specific Areas and Shapes in the Layout for Node/Resistor Information