Patent ID: 7030421
Filing Date: 2006-04-18
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a substantially planar substrate defining a principal plane; a compound semiconductor layer formed on the principal plane of the substrate, wherein said compound semiconductor layer includes at least one difference-in-height portion including a horizontal plane parallel to the principal plane of the substrate and multiple adjacent trenches with horizontal bottoms and vertical sidewalls; a crystal growth layer formed on the surface of the compound semiconductor layer wherein at least a portion of the crystal growth layer includes at least one facet structure oriented along an inclined plane with respect to the surface of the substrate, wherein the growth of said facet structure depends on a shape of the difference-in-height portion wherein the crystal growth layer forms a sawtooth configuration; and a first conductive layer, an active layer and a second conductive layer formed on the crystal growth layer in a stacked arrangement and oriented along the inclined plane.