Patent ID: 8679948

Claim:
A method for laser machining a workpiece, comprising: providing a laser configured to generate laser light having a wavelength; directing pulses of said laser light having said wavelength onto said workpiece during a first cutting process to make a first cut in said workpiece, wherein said first cutting process is characterized by at least one laser parameter selected from the group consisting of pulse duration, pulse temporal shape, laser power, fluence, repetition rate, speed, pitch, spot size, spot shape and focal height; after said first cutting process, changing the at least one of said laser parameters; and directing pulses of said laser light having said wavelength onto said workpiece during a second cutting process characterized by that at least one changed laser parameter to make a second cut in said workpiece, wherein said second cutting process is performed at a location substantially adjacent to a space created by said first cut such that debris generated during said second cutting process is transmittable into said space.