Patent ID: 11869810
Assignee: SILTECTRA GMBH
Field: Machine tools (Mechanical engineering)
Classification: CPC H  B  C | IPC B  C  H

Claim 0:
1. A method of separating a solid-state layer from a solid-state body, comprising:
generating a plurality of modifications by laser beams within the solid-state body to form a detachment region, wherein the laser beams are adjustable as a function of at least two parameters;
after generating the plurality of modifications, generating a composite structure by arranging or generating layers and/or components on or above an initially exposed surface of the solid-state body, wherein the exposed surface is part of the solid-state layer to be separated; and
introducing an external force into the solid-state body to generate stresses in the solid-state body or generating an internal force in the solid-state body, wherein a strength of the external or internal force is sufficient for crack propagation to occur along the detachment region,
wherein a first parameter of the at least two parameters is an average refractive index of a material of the solid-state body or a refractive index of the material of the solid-state body in a region of the solid-state body to be traversed to generate a defined modification by the laser beams,
wherein a second parameter of the at least two parameters is a processing depth in the region of the solid-state body to be traversed to generate the defined modification by the laser beams.