Patent ID: 8916400

Claim:
A manufacturing method for an LED (light emitting diode), comprising the following steps: providing a substrate; sequentially disposing a buffer layer and a transitional layer on the substrate; coating an aluminum layer on the transitional layer; using a nitriding process on the aluminum layer to form an aluminum nitride (AlN) layer with a plurality of stacks separated from each other and on the transitional layer, wherein the transitional layer is exposed to an epitaxial layer through intervals between the plurality of stacks of the AlN layer; disposing the epitaxial layer on the AlN layer and the transitional layer, wherein the epitaxial layer comprises a first semiconductor layer, a light emitting layer and a second semiconductor layer; and forming a first electrode and a second electrode respectively on the first semiconductor layer; wherein the AlN layer is configured for reflecting light generated by the epitaxial layer facing the substrate.