Defining padstacks

Padstacks define the pads of the footprint and must be defined before assigning them to the footprint. They possess properties on each layer of the board, such as shape and size. If you are using the standard Layout footprint libraries, or if you have made your own footprints using Layout standards, you have used padstacks T1 through T7 to create most of the standard through-hole components in your library.

The use of each padstack definition is defined as follows: you can define new padstacks by copying and editing existing padstacks in the Padstacks spreadsheet. Then, you can assign them to footprints or footprint pins. After you create new padstacks, you can save them in a board template (.TPL) for use with future boards.

T1: Round IC pads

T2: Square IC pads

T3: Round discrete pads

T4: Square discrete pads

T5: Round connector pads

T6: Square connector pads

T7: Via SMT stringer pads