Light emitting diode

Abstract

A light emitting diode of embodiments comprises: a substrate; a light emitting structure disposed below the substrate and including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer; a sub mount disposed opposite to the substrate; a first and second metal pad disposed apart from each other over the sub mount; a first bump disposed over the first metal pad; a plurality of second bumps disposed apart from each other over the second metal pad; a first ohmic layer disposed between the first conductive semiconductor layer and the first bump; a second ohmic layer disposed between the second conductive semiconductor layer and the plurality of second bumps; a first spread layer disposed between the first ohmic layer and the first bump; a second spread layer disposed between the second ohmic layer and the plurality of second bumps; and a current blocking layer disposed at the maximum heat emitting portion of the second ohmic layer overlapping the space between the plurality of second bumps in the thickness direction of the light emitting structure without severing the second ohmic layer in a horizontal direction that intersects the thickness direction.

Description

technical field [0001] The invention relates to a light emitting device. Background technique [0002] A Light Emitting Diode (LED) is a semiconductor that converts electricity into infrared light or light for receiving or transmitting signals or used as a light source by utilizing the properties of compound semiconductors. [0003] Group III-V nitride semiconductors have attracted much attention as important materials for light-emitting devices such as LEDs or laser diodes (LDs) due to their physical and chemical properties. [0004] Since LEDs do not contain environmentally harmful substances such as mercury (Hg) used in conventional lighting equipment such as incandescent lamps and fluorescent lamps, LEDs are highly environmentally friendly, and due to their extended life, low power Advantages, LEDs have replaced traditional light sources. [0005] In the case of the above light emitting device and the light emitting device package including the light emitting device, s...

AI Technical Summary

Problems solved by technology

[0005] In the case of the above light emitting device and the light emitting device package including the light emitting device, since the path of supplying carriers and the path of heat dissipation are the same, there may be a thermal deterioration phenomenon in which heat is difficult to be dissipated to the outside

Especially, in the case of light-emitting devices emitting deep ultraviolet light, the heat loss rate may be further increased due to high driving voltage

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