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. 18, 2025
Filed:
Jun. 15, 2022
Sumitomo Electric Industries, Ltd., Osaka, JP;
Shunsaku Ueta, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A middle cross-section includes a dense region in which an area density of threading screw dislocations is 2 or more times an overall average area density. An area of the dense region is 10% or less of an area of the middle cross-section. A line density of a stacking fault in each of a first and a second cross-sections is 1/cm or less, the first cross-section being separated from a first boundary toward a second boundary by a distance of 0.1 times a distance between the first and second boundaries, the second cross-section being a cross-section separated from the second boundary toward the first boundary by a distance of 0.1 times the distance between the first and second boundaries. The middle cross-section includes a sparse density region in which an area density of threading screw dislocations is lower than half the overall average area density.