Patent ID: 11888094
Assignee: QUANZHOU SANAN SEMICONDUCTOR TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A flip-chip light emitting diode (LED) comprising:
a sapphire substrate having a lateral vertical edge;
an epitaxial layer over the sapphire substrate, wherein the epitaxial layer comprises: a first semiconductor layer, a second semiconductor layer, and a light emitting layer between the first semiconductor layer and the second semiconductor layer, wherein the epitaxial layer is divided into an epitaxial bulk layer and a barrier structure; and
an insulating layer over the epitaxial bulk layer, wherein a portion of the insulating layer that covers a sidewall of the epitaxial bulk layer is separated from the lateral vertical edge of the sapphire substrate by the barrier structure; and wherein the insulating layer is a distributed Bragg reflective layer, which is formed over the epitaxial layer prior to forming at least one opening structure.