Patent ID: 9548423
Date: 2017-01-17
CPC Classifications: H01L

Claim:
1. A light-emitting device, comprising: a light-emitting stack comprising a first surface, a roughened surface, and a side wall connecting the first surface and the roughened surface; an electrode structure formed on the roughened surface of the light-emitting stack; a patterned dielectric layer formed on the first surface of the light-emitting stack, comprising a first portion and a second portion substantially surrounding the first portion, the first portion comprising a first thickness, and the second portion comprising a second thickness substantially the same as the first thickness; a first reflective electrode covering the first portion of the patterned dielectric layer and directly contacting the first surface of the light-emitting stack; a barrier layer covering the first reflective electrode and the second portion of the patterned dielectric layer; and a passivation layer covering the second portion of the patterned dielectric layer, the sidewall of the light-emitting stack, and the roughened surface of the light-emitting stack which is not occupied by the electrode structure, wherein the electrode structure is surrounded by the passivation layer, the passivation layer contacts an edge of the electrode structure and terminates at the edge of the electrode structure, and an interface between the electrode structure and the roughened surface of the light-emitting stack is devoid of the passivation layer.