Patent ID: 8803181
Filing Date: 2014-08-12
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a semiconductor substrate structure including a semiconductor substrate, a first metal layer placed on a first surface of the semiconductor substrate, and a second metal layer placed on a second surface of the semiconductor substrate; and a light emitting diode structure including a third metal layer placed on the semiconductor substrate structure, a current control layer placed on the third metal layer and including a transparent insulating film and current control electrodes that extend through the transparent insulating film, an epitaxial growth layer placed on the current control layer, and a surface electrode placed on the epitaxial growth layer, the surface electrode being configured to divide the light emitting diode structure into a plurality of light emitting diode portions, wherein the epitaxial growth layer has a rectangular plane pattern, wherein the surface electrode includes wherein the current control electrodes are distributed at a region of the transparent insulating film except where the center electrode is disposed so that their density is high in a peripheral region of the rectangular plane pattern and low in a central portion of the rectangular plane pattern, wherein the semiconductor substrate structure and the light emitting diode structure are coupled by bonding between the first metal layer and the third metal layer, the third metal layer comprising gold and serving as an Au mirror layer in addition to serving as a bonding member, wherein a current density of each light emitting diode portion is optimized so that a light emitting efficiency of each light emitting diode portion is optimized; and wherein each peripheral electrode has an opening.