If the footprint is incorrect, the part pins may not align with PCB pads or the part may violate clearance or spacing rules that could lead to significant loss of time and additional cost. In some cases, footprint generation may need to be done by yourself, and you’ll need to use information directly from the component’s datasheet. Some components are quite common or they come in standardized packages, making footprints easy to find.
When laying out your printed circuit board, it is critical that you know how to create footprint for your design components.
