METHOD AND DEVICE FOR REMOVING BRITTLE-HARD MATERIAL WHICH IS TRANSPARENT TO LASER RADIATION, BY MEANS OF LASER RADIATION

摘要

The invention relates to a method for removing brittle-hard material having a spatial volume of a given thickness between a top side and an underside by means of laser radiation, and the material has a defined optical penetration depth which is greater than or equal to the thickness of said material. The laser radiation is incident at a defined angle of incidence with respect to the surface normal of the top side; said laser radiation is designated as primary laser radiation. The primary laser radiation is at least partly reflected at the underside of the material, such that secondary laser radiation is generated in the volume of the material as a result of the reflection. For the processing of the brittle-hard material, the latter is backed by a further material on the underside in a positively locking manner. The invention also relates to a corresponding device.