Cadence PCB Best Practices

Embedded Component Design

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Embedded Component Design Embedded Component Design October 2019 18 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Summary The minimum requirements for embedded component design are: ■ Assign the EMBEDDED_PLACEMENT property to components targeted for embedded applications. ■ This property can be assigned at the Schematic or PCB level. ■ A drawing level property, EMBEDDED_SOFT can be applied but caution is advised. When using this methodology, any and all components in the database are candidates for embedded applications. ■ Use Package symbol library as is. ■ Construct your embedded component design strategy. This includes deciding on: ❑ Embedded Status of Body up / Body down ❑ Attachment Methods of Direct or Indirect ❑ Whether to use or not use Protruding allowed to extend cavities into adjacent layers ■ Use Setup – Cross-section to access the setup form. With the above requirements completed, you can now place components on the layers tagged as embedded. Parameter and constraint considerations are covered in the following sections. Adding Embedded Properties Applying properties in Allegro layout editors has historically been done using Edit – Property in combination with the appropriate Find filter setting and then selection of elements in the workspace. Use Constraint Manager to add the EMBEDDED_PLACEMENT property to the relevant components targeted for embedded applications. 1. Start Constraint Manager. 2. Open the Properties domain. 3. Open the General worksheet located in the Component workbook section.

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