Issue link: https://resources.pcb.cadence.com/i/1180280
Embedded Component Design Embedded Component Design October 2019 7 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Front to Back Flow Considerations The schematic to PCB design flow may differ between companies as well as between PCB and Packaging Design. For that reason, you may choose to enable the use of embedded components from the front-end Cadence tools or to exclude front-end requirements and drive completely within the PCB Editor or Packaging tools. The overall functionality associated with Embedded Component Design is largely contained in the backend physical products. However, the primary method that enables a component to be an embedded candidate is driven from a component definition or instance level property called EMBEDDED_PLACEMENT. This property can be applied at the schematic level, thus enforcing the front-to-back flow restrictions in the design process. Alternatively, it can be applied with the physical backend editors. The EMBEDDED_PLACEMENT property supports three values; REQUIRED, OPTIONAL and EXTERNAL ONLY. ■ REQUIRED: Use to ensure components targeted for embedded applications are placed on internal layers only. These components may be more expensive and designed for certain embedded applications; for example, copper tipped leads. They may also come with a longer availability lead time and require advance planning. This property can be considered as a "hard" property. A DRC will appear if placed on the surface layers. ■ OPTIONAL: The designer can optionally place the components on the surface or internal layers. These components are of the generic type, ones that probably exist in your component library. This property can be considered as a "soft" property. ■ EXTERNAL ONLY: This is a limited use property. Consider applying to exception components when using the drawing-level property EMBEDDED_SOFT. Drawing-Level Property Alternative If you want to drive the solution entirely from the backend and want to use your own discretion during component placement, consider applying the drawing-level property EMBEDDED_SOFT. With this property enabled at the drawing level, you are free to place any component in the database to an internal layer. This in fact may be the best practice for packaging designers. Applying a Drawing-level Property 1. Choose Edit – Property. 2. Open Find Filter and select Drawing in the Find by Name field.