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:
Jan. 20, 2026
Filed:
Feb. 14, 2023
Infineon Technologies Ag, Neubiberg, DE;
Thomas Huber, Ossiach, AT;
Matthias Kuenle, Villach, AT;
Iris Moder, Villach, AT;
Joerg Ortner, Drobollach am Faakersee, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A semiconductor substrate includes a semiconductor base substrate. An alignment structure is formed on a surface of the semiconductor base substrate. An epitaxial layer is deposited on the surface of the semiconductor base substrate. The alignment structure includes an area of the surface of the semiconductor base substrate that is formed as a groove pattern. Grooves of the groove pattern are aligned with a specific crystallographic direction of the semiconductor base substrate. The specific crystallographic direction provides for a slower epitaxial growth rate on such a groove-patterned base substrate surface area compared to epitaxial growth on a surface of the semiconductor base substrate adjacent to the groove-patterned area.