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.

Date of Patent:
Sep. 22, 2026

Filed:

Nov. 01, 2023
Applicant:

Siltectra Gmbh, Dresden, DE;

Inventors:

Jan Richter, Dresden, DE;

Christian Beyer, Freiberg, DE;

Ralf Rieske, Dresden, DE;

Assignee:

Siltectra GmbH, Dresden, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/53 (2014.01); B23K 26/40 (2014.01); B23K 26/402 (2014.01); B23K 103/00 (2006.01); B28D 5/00 (2006.01); H10P 52/00 (2026.01); H10P 54/00 (2026.01); H10P 90/00 (2026.01);
U.S. Cl.
CPC ...
B23K 26/53 (2015.10); B23K 26/40 (2013.01); B23K 26/402 (2013.01); B28D 5/0011 (2013.01); H10P 52/00 (2026.01); H10P 54/00 (2026.01); H10P 90/126 (2026.01); B23K 2103/50 (2018.08); B23K 2103/56 (2018.08);
Abstract

A method for producing a detachment region in a solid-state body includes: providing a solid body that consists of a chemical compound comprising a combination of elements from the 3rd, 4th and 5th main group and subgroup 12 of the Periodic Table of the Elements; providing a laser light source; and exposing the solid body to laser beams from the laser light source. The laser beams penetrate into the solid body via a main surface of the solid body and are applied in a defined manner on a predefined portion of the solid body within the solid body to form a detachment region. The application of the laser beams successively creates multiple modifications in a crystal lattice of the solid body which, as a result of the modifications, fissures in a subcritical manner at least in a portion in each case in regions that surround the modifications.


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