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:
Nov. 29, 2022
Filed:
Oct. 19, 2018
Suzhou Lekin Semiconductor Co., Ltd., Taicang, CN;
SUZHOU LEKIN SEMICONDUCTOR CO., LTD., Taicang, CN;
Abstract
A semiconductor device comprises a substrate and a plurality of emitters disposed on the substrate. The emitter may comprise: a first conductive reflection layer having a first reflectivity; an active layer disposed on the first conductive reflection layer; an aperture layer disposed on the active layer and comprising an aperture region and a blocking region surrounding the aperture region; and a second conductive reflection layer disposed on the aperture layer and having a second reflectivity smaller than the first reflectivity. A diameter-to-pitch ratio of the aperture region of the aperture layer is 1:3 to 1:5, wherein the pitch may be defined as the distance between centers of aperture regions of aperture layers of adjacent emitters.