Patent ID: 8592858
Filing Date: 2013-11-26
Classification: H01L

Abstract:
1. A light-emitting diode comprising: a transparent substrate having a first side and a second side which is opposite the first side and has an area smaller than that of the first side; and a compound semiconductor layer that contains a light-emitting part containing a light-emitting layer formed of (Al wherein the light-emitting diode has a main light-extracting surface and has a first electrode and a second electrode different in polarity from the first electrode, the first and second electrodes being disposed on a same larger first side of the transparent substrate, the main light-extracting surface is on a side of the compound semiconductor layer opposite the side of the compound semiconductor layer joined to the transparent substrate, the transparent substrate has side faces that are a first side face roughly perpendicular to a light-emitting surface of the light-emitting layer on a side near the light-emitting layer and a second side face inclined relative to the light-emitting surface on a side distant from the light-emitting layer, the second side face of the transparent substrate is coarsened with irregularities falling in a range of 0.05 μm to 3 μm, and the light-emitting part contains a GaP layer and the second electrode is formed in direct contact with the GaP layer.