The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2026
Filed:
Feb. 19, 2019
Siltectra Gmbh, Dresden, DE;
Jan Richter, Dresden, DE;
Ralf Rieske, Dresden, DE;
Marko Swoboda, Dresden, DE;
Albrecht Ullrich, Dresden, DE;
Siltectra GmbH, Dresden, DE;
Abstract
The invention relates to a method for producing modifications () in the interior of a solid body (). The method comprises the introduction of laser radiation () of a laser () into the interior of the solid body () via a first surface () of the solid body (). The solid body () forms a crystal structure. Modifications () are produced at predefined points in a production plane () in the interior of the solid body () by the laser radiation (). The modifications () are closer to the first surface () than to a second surface, the second surface being parallel to the first surface (). A plurality of linear forms () can be produced by the modifications (). The solid body () cracks subcritically in the region of each modification (). The subcritical cracks have an average crack length of less than 150 μm orthogonally to the direction of longitudinal extent of the linear form in question. Modifications () that belong to the same linear form () and that are produced one after the other are produced at a distance from each other that is defined by the function (d−x)/d<−0.31, where x>d.