Patent ID: 9728698
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. A light emitting device comprising: a substrate including a base and a conductive pattern disposed over the base; and a light emitting diode mounted on the substrate, wherein the light emitting diode includes: a light emitting structure including a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed under the first conductive type semiconductor layer, and an active layer disposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, wherein the light emitting structure is disposed to form openings exposing a corresponding portion of the first conductive type semiconductor layer; a first electrode forming ohmic contact with the first conductive type semiconductor layer through the exposed portion of the first conductive type semiconductor layer; a second electrode disposed under the second conductive type semiconductor layer and forming ohmic contact with the second conductive type semiconductor layer; a first insulation layer partially covering the first electrode and the second electrode; a first bump and a second bump disposed under the light emitting structure and electrically connected to the first electrode and the second electrode, respectively through the conductive pattern; and a heat dissipation bump disposed under the light emitting structure and above the substrate and contacting the base, wherein at least one of the openings formed on the light emitting structure is disposed to form a connection structure connecting at least two other of the openings, the first bump, the second bump and the heat dissipation bump are separated from one another, the heat dissipation bump has higher thermal conductivity than the first and second bumps, and wherein the conductive pattern includes a first conductive pattern electrically connected to the first bump and a second conductive pattern electrically connected the second bump, and the base includes a protrusion disposed between the first and second conductive patterns.