Footprint (electronics)
![Populated (rear) and unpopulated (front) TSOP land patterns on a printed circuit board.](/Images/godic/202501/23/TSOP_LandPatterns_Pop+Unpop0444.JPG")
![A row of through-holes acting as the footprint for a pin header.](/Images/godic/202501/23/Row_of_through-holes_for_a_pin_header0444.JPG")
A footprint or land pattern is the arrangement of pads (in surface-mount technology) or through-holes (in through-hole technology) used to physically attach and electrically connect a component to a printed circuit board. The land pattern on a circuit board matches the arrangement of leads on a component.