Cutting brittle flat material comprising areas of metal layers on its surface, comprises partially covering flat material surface along dividing line by metal layer areas, exposing to laser radiation and introducing laser radiation energy

摘要

Cutting brittle flat material comprising areas of metal layers on its surface, comprises: at least partially covering the surface of flat material along a dividing line by areas of metal layers; exposing to the laser radiation; introducing the laser radiation energy into the flat material; and reducing the degree of reflection in the areas of the metal layers, which are located along the dividing line before introducing the laser radiation energy.