Patent ID: 8044386
Filing Date: 2011-10-25
Classification: B82Y,H01L,H01S

Abstract:
1. A semiconductor light emitting device, comprising: a first conductive type semiconductor layer; an active layer formed on the first conductive type semiconductor layer, wherein the active layer is a multi-quantum well structure having a plurality of well layers alternatively stacked with a plurality of barrier layers; and a second conductive type semiconductor layer formed on the active layer, wherein a first well layer of the plurality of well layers has a composition of In wherein a first barrier layer of the plurality of the barrier layers is formed on the first well layer and has a composition of In wherein the active layer comprises 4 to 10 pairs of periodically repeated well layers and barrier layers, each pair including a corresponding barrier layer on a corresponding well layer, wherein one of the pairs of periodically repeated well layers and barrier layers comprises a seed layer of InN, and wherein an upper surface of the seed layer is in direct contact with a lower surface of the corresponding well layer and a lower surface of the seed layer is in direct contact with an upper surface of the corresponding barrier layer.