Nitride semiconductor device
    1.
    发明授权
    Nitride semiconductor device 有权
    氮化物半导体器件

    公开(公告)号:US07211822B2

    公开(公告)日:2007-05-01

    申请号:US11026062

    申请日:2005-01-03

    IPC分类号: H01L31/0304

    摘要: A nitride semiconductor device including a light emitting device comprises a n-type region of one or more nitride semiconductor layers having n-type conductivity, a p-type region of one or more nitride semiconductor layers having p-type conductivity and an active layer between the n-type region and the p-type region. In such devices, there is provided with a super lattice layer comprising first layers and second layers which are nitride semiconductors having a different composition respectively. The super lattice structure makes working current and voltage of the device lowered, resulting in realization of more efficient devices.

    摘要翻译: 包括发光器件的氮化物半导体器件包括具有n型导电性的一个或多个氮化物半导体层的n型区域,具有p型导电性的一个或多个氮化物半导体层的p型区域和在p型区域之间的有源层, n型区域和p型区域。 在这样的装置中,提供了包括分别具有不同成分的氮化物半导体的第一层和第二层的超晶格层。 超晶格结构使得器件的工作电流和电压降低,从而实现更有效的器件。

    Nitride semiconductor light-emitting device
    5.
    发明授权
    Nitride semiconductor light-emitting device 失效
    氮化物半导体发光器件

    公开(公告)号:US5777350A

    公开(公告)日:1998-07-07

    申请号:US565101

    申请日:1995-11-30

    IPC分类号: H01L33/06 H01L33/32 H01L33/00

    CPC分类号: H01L33/32 B82Y20/00 H01L33/06

    摘要: A nitride semiconductor light-emitting device has an active layer of a single-quantum well structure or multi-quantum well made of a nitride semiconductor containing indium and gallium. A first p-type clad layer made of a p-type nitride semiconductor containing aluminum and gallium is provided in contact with one surface of the active layer. A second p-type clad layer made of a p-type nitride semiconductor containing aluminum and gallium is provided on the first p-type clad layer. The second p-type clad layer has a larger band gap than that of the first p-type clad layer. An n-type semiconductor layer is provided in contact with the other surface of the active layer.

    摘要翻译: 氮化物半导体发光器件具有由包含铟和镓的氮化物半导体构成的单量子阱结构或多量子阱的有源层。 提供由含有铝和镓的p型氮化物半导体制成的第一p型覆盖层与有源层的一个表面接触。 在第一p型覆盖层上设置由含有铝和镓的p型氮化物半导体构成的第二p型覆盖层。 第二p型覆盖层的带隙比第一p型覆盖层的带隙大。 提供与有源层的另一表面接触的n型半导体层。

    Infrared-to-visible converter
    7.
    发明授权
    Infrared-to-visible converter 失效
    红外至可见转换器

    公开(公告)号:US5438198A

    公开(公告)日:1995-08-01

    申请号:US238020

    申请日:1994-05-03

    摘要: An IR-to-visible converter for a solid-state image converting device including a photoconductive layer and an electroluminescent layer is sensitive to 1.5 .mu.m region IR rays and can convert such IR rays with high efficiency into visible light perceivable even in a well-lighted room. The IR-to-visible converter is characterized by using an IR to visible upconversion phosphors layer which has emission peaks in the sensitive wavelength region of the photoconductor layer, the IR to visible upconversion phosphors layer being optically combined with photoconductive layer.

    摘要翻译: 用于包括光电导层和电致发光层的固态图像转换装置的IR可见转换器对于1.5μm区域红外线是敏感的,并且可以将这种IR光线以高效率转换成可见光, 照明房间。 IR到可见转换器的特征在于使用IR到可见的上转换磷光体层,其在感光体层的敏感波长区域中具有发射峰,IR到可见的上转换磷光体层与光电导层光学组合。