SUBSTRATE FOR GROWING A COMPOUND SEMICONDUCTOR CAPABLE OF IMPROVING EXTERNAL QUANTUM EFFICIENCY AND INTERNAL QUANTUM EFFICIENCY AND A LIGHT EMITTING DEVICE FOR A COMPOUND SEMICONDUCTOR HAVING THE SAME

摘要

PURPOSE: A substrate for growing a compound semiconductor and a light emitting device for a compound semiconductor having the same are provided to improve a scattering effect of light by protrusions by forming relatively a large number of protrusions per standard area on a growth plane of a substrate.;CONSTITUTION: A substrate(110) for compound semiconductor growth is made of sapphire. The substrate for compound semiconductor growth comprises a growth substrate(111) and a plurality of protrusions(113). The growth substrate includes a growth plane on which a compound semiconductor is grown up. The plurality of protrusions is formed by a photo lithography process of the substrate for compound semiconductor growth. The plurality of protrusions is formed on the growth plane to have relatively high density.;COPYRIGHT KIPO 2013