Patent ID: 9231158
Filing Date: 2016-01-05
CPC Classification: H01L

Claim Text:
1. A method for manufacturing a light-emitting diode structure, comprising: providing a substrate; forming a first confining layer on the substrate; forming an active layer on the first confining layer; forming a second confining layer on the active layer; coating a photoresist layer on a surface of the second confining layer, wherein the photoresist layer has a predetermined gap; etching the second confining layer and the active layer along the predetermined gap by using the photoresist layer as a mask; removing the photoresist layer, thereby forming a light-emitting epitaxial structure and a protrusive structure, wherein the material layers forming the protrusive structure are substantially equivalent to the material layers forming the light-emitting epitaxial structure with respect to material species and arrangement sequence, and the side surfaces of the protrusive structure are without undercut; fabricating a first electrode pad encapsulating the protrusive structure and directly contacting the exposed top and side surfaces of the protrusive structure; and fabricating a second electrode pad on a top surface of the light-emitting epitaxial structure, wherein the top surface roughness of the protrusive structure is very close to that of the light-emitting epitaxial structure.