By simplifying shapes, you can reduce the fine details in those areas of the layout that might not impact the result of electromagnetic simulation. For example, you can remove small dangling shapes or merge closely placed shapes. This improves the simulation runtime.
To simplify shapes:
- Click Setup on the Pre-Process tab of the Electromagnetic Solver Assistant.
The Simplify layout for EM simulation form is displayed. - Specify rules for the following purposes:
a. To skip dummy metal fills from one or more layer-purpose pairs in the layout
b. To remove dangling shapes, merge shapes, stripe shapes, or smooth shape steps
b. To change the master for instances in the layout
c. To remove dangling connected shapes from one or more layer-purpose pairs in the layout
d. To merge shapes that are placed on the same layer or on the layers above or below it if they are within the given distance - (Optional) Click Save As to save the setup in a recipe file, which can be later loaded to reuse the settings.
- Click OK to close the form.
- Click Preview Pre-Preprocessed Layout on the Pre-Process tab.
A preview of simplified shapes is displayed. If required, you can further modify the rules. - To protect certain shapes from modifications even if they meet the rules, select those shapes and click Protect Selected on the Pre-Process tab.
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