METHOD FOR THE LASER MACHINING OF A WORKPIECE HAVING A POLISHED SURFACE AND USE OF SAID METHOD

摘要

The invention relates to a method for the laser machining of a workpiece (1) that is made of a dielectric material and has at least one polished surface. In the method, the material is locally influenced at least on the polished surface by means of a laser beam (4) in order to achieve a material removal or a physical or chemical modification of the material. Before the machining, the polished surface is connected to a polished substrate surface of an auxiliary substrate (2), which auxiliary substrate is at least partially transparent to the laser radiation (4) and is removed from the workpiece (1) after the machining. By using the auxiliary substrate, conchoidal break-outs are avoided during the machining of the polished surface.