Patent ID: 11942570
Assignee: CHONGQING KONKA PHOTOELECTRIC TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A manufacturing method for a micro light-emitting diode (LED), comprising:
providing a substrate, forming a first semiconductor layer on the substrate, and forming an active layer on the first semiconductor layer, wherein the first semiconductor layer is a gallium nitride (GaN) semiconductor layer, and the active layer comprises a first quantum well layer and a second quantum well layer, wherein the first quantum well layer is configured to emit light of a first color;
forming a second semiconductor layer on the active layer, wherein the second semiconductor layer and the first semiconductor layer are of different types;
etching the second semiconductor layer and the second quantum well layer to form a plurality of nanorings, wherein a sidewall of each of the plurality of nanorings is configured to emit light of a second color different from the first color;
forming a current diffusion layer on the first quantum well layer and the plurality of nanorings; and
forming a second electrode on the current diffusion layer.