Patent ID: 7679165
Filing Date: 2010-03-16
Classification: H01L,Y10S

Abstract:
1. A light emitting diode comprising: a (100) substrate having a crystal orientation such that a plane of the substrate is inclined toward a first and a second direction simultaneously; a first cladding layer formed with a semiconductor material of a first conductive type on the (100) substrate; an active layer formed on the first cladding layer; and a second cladding layer formed with a semiconductor material of a second conductive type on the active layer, wherein concavo-convexes are formed on the interfaces of the first cladding layer, the second cladding layer, and the active layer; and wherein the (100) substrate is a III-V or a IV-IV group semiconductor substrate; and wherein the (100) substrate has a crystal orientation such that a (100) plane of the (100) substrate is inclined 2 to 20° toward the [0-1-1] direction and 1 to 8° toward the [0-11] direction.