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:
Jun. 03, 2025
Filed:
May. 11, 2022
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Yong Tae Moon, Cork, IE;
Alexander Tonkikh, Wenzenbach, DE;
Christophe Antoine Hurni, Seattle, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
LED devices and corresponding techniques for manufacturing LED devices are described. In some embodiments, an LED device includes a plurality of mesas, each mesa corresponding to a separate LED and including a layered semiconductor structure. The layered semiconductor structure includes an active region and a quantum barrier (QB) layer. The active region has a matrix of quantum well (QW) cells that are quantum mechanically isolated by the QB layer. In particular, the QB layer can include ridge-shaped structures that laterally separate adjacent QW cells. The matrix of QW cells can be arranged as a two-dimensional array. In some embodiments, the QW cells are epitaxially grown such that each QW cell is thicker along a central region and thinner along a peripheral region, with the peripheral region corresponding to where the QW cell meets a ridge-shaped structure of the QB layer.