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:
Sep. 29, 2020
Filed:
Mar. 22, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
David Massoubre, Cork, IE;
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
A micro-light emitting diode (LED) is manufactured using a lift-off substrate that is removed using a laser-lift-off process. A method for manufacturing the LED may include forming an epitaxial structure of the LED on a growth substrate, and attaching an open side of the epitaxial structure with a gallium-based layer and a lift-off substrate, the gallium-based layer between the epitaxial structure and the lift-off substrate. The growth substrate is separated from the epitaxial structure, and the epitaxial structure may be processed into the LED. Light is applied to the gallium-based layer through the lift-off substrate to debond the second portion of the gallium-based layer and the lift-off substrate. The lift-off substrate is separated from the second portion of the gallium-based layer to expose a light emitting surface of the LED on the second portion of the gallium-based layer.