Patent attributes
The present invention relates to a method for separating at least one solid-body layer (4) from at least one solid body (1). Thereby, the method as claimed in the invention comprises the steps:creating a plurality of modifications (9) by means of laser beams within the interior space of the solid body (1) to form a detachment plane (8),producing a composite structure by arranging or producing layers and/or components (150) on or above an initially exposed surface (5) of the solid body (1), wherein the exposed surface (5) is an integral part of the solid-body layer (4) to be separated,introducing an external force into the solid body (1) for generating tensions within the solid body (1), wherein the external force is so strong that the tensions initialize a crack propagation along the detachment plane (8),wherein the modifications for forming the detachment plane (8) are created before producing the composite structure.
