Cadence PCB Best Practices

Embedded Component Design

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Embedded Component Design Embedded Component Design October 2019 36 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. A route keep out gets created for multilayer cavities on each layer that the symbol passes through that is labeled Protruding allowed. A route keep out gets created on the external surface (top or bottom) if the cavity is open to the external surface. You can specify an oversize value (relative to the cavity outline) to apply to the creation of these keep outs. Note: When Body down is selected as an embedded methodology, the cavity outline does not appear on the layer you would assume, that being the layer the component is mounted on. The cavity outline appears on the next adjacent layer towards the bottom. In the following example, SIG_3 is an embedded layer with a Body down methodology. The cavity graphics appears on layer SIG_4. Note that a cavity is not a single layer entity but rather an opening in material between 2 layers. Reports Existing reports that include components placement (for example, Placed Components Report) have been updated to properly report the status of all embedded and external components. Two new reports are also available: ■ Embedded Placement Report ■ Embedded Cavity Report The Design Summary Report will be enhanced to include data regarding the embedded components.

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