geometry of pads for soldering certain electronic component.

The pattern on the printed circuit board to which the leads on a surface mount component are mated. Also called a land or a pad.

a drop-in replacement (PCB design and board assembly) for WB PBGA for the same ball diameter and pitch

The mechanical outline physically representing an electronic component on a printed circuit board. It contains all mounting pads, drill holes, silkscreen, courtyards, and reference designator.

The pattern of metal and silkscreen which defines where you place a component on a PCB. Footprints are the placed by the user onto the PC board during the “placement” phase of PCB layout (using e.g. the open-source tool PCB). A footprint is also sometimes called called a “decal” (PADS), or a “land-pattern”.

The hole, pad and conductor pattern associated with a specific electronic component package configuration.