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:
Dec. 09, 2025
Filed:
Jul. 25, 2023
Enkris Semiconductor, Inc., Suzhou, CN;
Kai Cheng, Suzhou, CN;
ENKRIS SEMICONDUCTOR, INC., Suzhou, CN;
Abstract
A light emitting device includes: a substrate; a DBR mask layer on a side of the substrate, the DBR mask layer being provided with a window exposing the substrate, the window including an opening end away from the substrate and a bottom wall end close to the substrate, and on a plane where the substrate is located, an orthographic projection of the opening end falling within an orthographic projection of the bottom wall end; and a light emitting unit. The light emitting unit includes an active layer located on a side, away from the substrate, of the DBR mask layer. Providing the window on the DBR mask layer may reduce dislocation density during epitaxial growth of the light emitting unit, and arrangement of the DBR mask layer may improve light extraction efficiency of the light emitting device.