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:
May. 13, 2025
Filed:
Jan. 08, 2024
Nichia Corporation, Anan, JP;
Kazuki Yamaguchi, Tokushima, JP;
Yoshitaka Sumitomo, Tokushima, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
A semiconductor element includes: a substrate having a first surface, a second surface, and at least one lateral surface; and a semiconductor layer formed on the second surface. The at least one lateral surface includes: at least one flat region, a first region that extends along a first direction parallel to the first surface at a position apart from the first surface and the second surface, wherein a surface roughness of the first region is larger than a surface roughness of the flat region, and a second region that extends along the first direction parallel to the first surface at a position between the first region and the first surface and apart from the first surface, wherein a surface roughness of the second region is larger than the surface roughness of the flat region. The substrate includes, in an interior of the substrate, a plurality of modified portions.