A method and system for cutting a wafer comprising a semiconductor
substrate attached to an array of integrated devices includes placing the
wafer on a stage such as a movable X-Y stage including a vacuum chuck
having a porous mounting surface, and securing the wafer during and after
cutting by vacuum pressure through the pores. The wafer is cut by
directing UV pulses of laser energy at the substrate using a solid-state
laser having controlled polarization. An adhesive membrane can be
attached to the separated die to remove them from the mounting surface,
or the die can otherwise be removed after cutting from the wafer.