When you do not have a schematic or the connectivity information in the schematic is incomplete, you can run the layout-driven flow in which the entire information is taken from the layout.
To create a model for a layout-driven flow:
- Select Extract Full Cellview in the Electromagnetic Solver assistant.
- Click Edit the list of excluded cells below the Excluded Cells list.
- The tool looks for the cells that have a symbol view and displays their names in the Excluded Cells list.
- Select the check boxes to the left of the active cell names, such as MOSFET, NFET, PFET, or BJT, that you need to exclude from the model.
- (Optional) Click Select cut type to choose a shape for the cutting boundary and create a boundary to define the area to be used in the model.
- Click Automatically generate ports on the Ports tab to generate ports for the cells in the model.
- (Optional) Specify options on the Pre-Process tab to run shape simplification.
- Generate and view mesh.
- Run simulation for the model.
- After the simulation, is complete, click Create Simulation Schematic to create a schematic using the S-parameters.
- In the Create Simulation Schematic form, specify a name for the new schematic view to be created and click OK.
Virtuoso creates a new schematic cellview and adds it to the library.
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