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    • 5. 发明授权
    • Semiconductor light emitting device
    • 半导体发光器件
    • US5777349A
    • 1998-07-07
    • US678954
    • 1996-07-12
    • Junichi NakamuraHiroshi Nakatsu
    • Junichi NakamuraHiroshi Nakatsu
    • H01L33/14H01L33/16H01L33/30H01L33/40H01L33/00
    • H01L33/30H01L33/14
    • A semiconductor light emitting device includes: a compound semiconductor substrate of a first conductive type; a multilayer structure formed on the compound semiconductor substrate, the multilayer structure including at least an active layer for emitting light, a lower cladding layer of the first conductive type and an upper cladding layer of a second conductive type with the active layer interposed therebetween; an intermediate layer of the second conductive type formed on the multilayer structure; and a current diffusion layer of the second conductive type formed on the intermediate layer. The intermediate layer alleviates at least one of a lattice mismatching between the upper cladding layer and the current diffusion layer and a difference in energy positions at a lower end of a conduction band and/or an upper end of a valence band in an energy band profile which is exhibited before forming a junction between the upper cladding layer and the current diffusion layer.
    • 一种半导体发光器件包括:第一导电类型的化合物半导体衬底; 形成在所述化合物半导体基板上的多层结构,所述多层结构至少包括用于发光的有源层,所述第一导电类型的下包层和具有所述有源层的第二导电类型的上包层; 形成在所述多层结构上的所述第二导电类型的中间层; 以及形成在中间层上的第二导电类型的电流扩散层。 中间层减轻了上包层和电流扩散层之间的晶格失配和能带中的导带和/或价带上端的能量位置的差异中的至少一个, 其在形成上包层和电流扩散层之间的接合点之前展现。