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:
Feb. 26, 2019
Filed:
Jun. 22, 2017
Epistar Corporation, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
The present disclosure provides a method of forming a light-emitting device comprising: providing a growth substrate having a front side and a rear side; forming a sacrificial layer on the front side of the growth substrate; forming a protective structure on the sacrificial layer; forming a light-emitting structure on the protective structure, wherein the light-emitting structure emits a first peak wavelength; providing a carrier; joining the carrier and the light-emitting structure; and transforming the sacrificial layer by irradiating a laser beam from the rear side to separate the growth substrate from the light-emitting structure, wherein the laser beam emits a second peak wavelength, and wherein the protective structure reflects the second peak wavelength away from the light-emitting structure.