Light-emitting mesa for micro-led and method for forming the same, and micro-led chip

Abstract

The present invention provides a light-emitting mesa for a micro-LED, a method for forming the same, and a micro-LED chip. The light-emitting mesa includes: a transparent conductive layer, a first epitaxial layer, a light-emitting layer and a second epitaxial layer arranged from a side of the light-emitting mesa facing away from a light extraction side toward a side of the light-emitting mesa facing the light extraction side. The transparent conductive layer is arranged on the side of the light-emitting mesa facing away from the light extraction side. The first epitaxial layer is arranged between the transparent conductive layer and the light-emitting layer. The light-emitting layer is arranged between the first epitaxial layer and the second epitaxial layer, and the light-emitting layer is configured to emit light. The second epitaxial layer is arranged on the side of the light-emitting mesa facing the light extraction side. An area of the second epitaxial layer is greater than an area of the first epitaxial layer, and a side surface of the light-emitting mesa has an inclined surface, and an inclination angle of the inclined surface is

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