Light emitting element with a plurality of cells bonded, method of manufacturing the same, and light emitting device using the same

Abstract

The present invention relates to a light emitting device, including a conductive substrate, vertical light emitting cells arranged on the conductive substrate, an insulating layer interposed between the conductive substrate and the vertical light emitting cells, and a wire electrically connecting the vertical light emitting cells.

What is claimed is: 
     
         1 . A light emitting device, comprising:
 a conductive substrate;   vertical light emitting cells arranged on the conductive substrate;   an insulating layer arranged between the conductive substrate and the vertical light emitting cells; and   a wire electrically connecting the vertical light emitting cells.   
     
     
         2 . The light emitting device of  claim 1 , wherein the conductive substrate comprises silicon or a semiconductor. 
     
     
         3 . The light emitting device of  claim 1 , wherein each of the vertical light emitting cells comprises a P-GaN layer, an active layer, and an N-GaN layer. 
     
     
         4 . The light emitting device of  claim 1 , further comprising a first electrode pad arranged on each of the vertical light emitting cells. 
     
     
         5 . The light emitting device of  claim 4 , wherein the vertical light emitting cells are electrically connected through the first electrode pads. 
     
     
         6 . The light emitting device of  claim 4 , further comprising a second electrode pad, the first electrode pad and the second electrode pad being arranged on an upper surface and a lower surface of the vertical light emitting cell, respectively. 
     
     
         7 . The light emitting device of  claim 6 , further comprising an insulation film arranged between adjacent second electrode pads, the insulation film being arranged on the conductive substrate. 
     
     
         8 . The light emitting device of  claim 1 , further comprising a terminal electrode arranged on one of the vertical light emitting cells located at an end region of the light emitting device. 
     
     
         9 . The light emitting device of  claim 1 , wherein the wire comprises a bridge wiring. 
     
     
         10 . The light emitting device of  claim 1 , wherein the wire comprises a conductive material. 
     
     
         11 . The light emitting device of  claim 10 , wherein the conductive material comprises gold.