Patent ID: 11961939
Assignee: EPISTAR CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of manufacturing a light-emitting device, comprising:
providing a substrate comprising a top surface;
forming a precursor layer on the top surface;
removing a portion of the precursor layer and a portion of the substrate from the top surface to form a base portion and a plurality of protrusions regularly arranged on the base portion;
forming a buffer layer on the base portion and the plurality protrusions; and
forming a III-V compound cap layer on the buffer layer;
wherein one of the plurality of protrusions comprises a first portion and a second portion formed on the first portion;
wherein the first portion is integrated with the base portion and has a first material which is the same as that of the base portion; and
wherein the buffer layer contacts side surfaces of the plurality of protrusions and a surface of the base portion.