SMT (surface mount technology) component placement systems, commonly called pick-and-place machines or P&Ps, are robotic machines which are used to place surface-mount devices (SMDs) onto a printed circuit board (PCB).
"Pick and Place file" is a file to setup SMT machine, you can download a template on right side. This file is generated from PCB Layout file.
Here is a template of "Pick and Place file":
1. Ref: Indicating components’ corresponding location on PCB should be same with the list in BOM.
2. Layer: Indicating components is on top layer or bottom layer.
3. Location: The exactly location of the Component on PCB.