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    • 10. 发明授权
    • Light emitting diode having algan buffer layer and method of fabricating the same
    • 具有阴离子缓冲层的发光二极管及其制造方法
    • US08664693B2
    • 2014-03-04
    • US12090047
    • 2007-03-09
    • Ki Bum Nam
    • Ki Bum Nam
    • H01L21/02
    • H01L33/007H01L21/0242H01L21/02458H01L21/02505H01L21/0251H01L21/0254H01L21/0262H01L33/12
    • The present invention relates to a light emitting diode having an AlxGa1-xN buffer layer and a method of fabricating the same, and more particularly, to a light emitting diode having an AlxGa1-xN buffer layer, wherein between a substrate and a GaN-based semiconductor layer, the Al x Ga 1-x N (O≦x≦1) buffer layer having the composition ratio x of Al decreasing from the substrate to the GaN-based semiconductor layer is interposed to reduce lattice mismatch between the substrate and the GaN-based semiconductor layer, and a method of fabricating the same. To this end, the present invention provides a light emitting diode comprising a substrate; a first conductive semiconductor layer positioned on the substrate; and an AlxGa1-xN (O≦x≦1) buffer layer interposed between the substrate and the first conductive semiconductor layer and having a composition ratio x of Al decreasing from the substrate to the first conductive semiconductor layer.
    • 本发明涉及具有Al x Ga 1-x N缓冲层的发光二极管及其制造方法,更具体地说,涉及具有Al x Ga 1-x N缓冲层的发光二极管,其中在基板和GaN基 半导体层插入从衬底到GaN基半导体层的组成比x为Al的Al x Ga 1-x N(O @ x 1)缓冲层以减小衬底和GaN之间的晶格失配 基半导体层及其制造方法。 为此,本发明提供一种包括基板的发光二极管; 位于所述基板上的第一导电半导体层; 以及插入在所述基板和所述第一导电半导体层之间并且从所述基板向所述第一导电半导体层的Al的组成比x减小的Al x Ga 1-x N(O x x 1)缓冲层。