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#### 13.2.12 footprint attribute

footprint=package_name should exist somewhere in the symbol and be made invisible. This attribute is used by `lepton-netlist` and primarily for the PCB package.

Attach this attribute just like the device (device attribute) attribute. This is a free standing or floating attribute.

package_name is the pcb footprint or package type like `DIP14` or `DIP40`. Although this attribute in principle is pcb package dependent, gEDA/gaf conventions exist to make this attribute as portable as possible, allowing for easy collaboration and sharing between users. Footprint naming conventions.

If the symbol does not have a footprint, then the value of footprint= should be set to `none`. If the footprint must be overridden in a schematic, then the value of footprint= should be set to `none`. If the footprint is not known, then the value of footprint= should be set to `unknown`.