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    • 34. 发明申请
    • SEMICONDUCTOR LIGHT EMITTING ELEMENT
    • 半导体发光元件
    • US20130126902A1
    • 2013-05-23
    • US13813792
    • 2011-08-05
    • Akihiro IsozakiAkira InoueAtsushi YamadaToshiya Yokogawa
    • Akihiro IsozakiAkira InoueAtsushi YamadaToshiya Yokogawa
    • H01L33/32
    • H01L33/32H01L33/0079H01L33/16H01L33/20H01L2933/0083
    • A semiconductor light-emitting element according to the present invention includes: an n-type nitride semiconductor layer 21; a p-type nitride semiconductor layer 23; an active layer region 22 which includes an m plane nitride semiconductor layer and which is interposed between the n-type nitride semiconductor layer and the p-type nitride semiconductor layer; an n-type electrode 30 which is electrically connected to the n-type nitride semiconductor layer; a p-type electrode 40 which is electrically connected to the p-type nitride semiconductor layer; a light-emitting face, through which polarized light that has been produced in the active layer region is extracted out of this element; and a striped structure 50 which is provided for the light-emitting face and which has a plurality of projections that run substantially parallel to the a-axis direction of the m plane nitride semiconductor layer.
    • 根据本发明的半导体发光元件包括:n型氮化物半导体层21; p型氮化物半导体层23; 包括m面氮化物半导体层并且介于n型氮化物半导体层和p型氮化物半导体层之间的有源层区域22; 与n型氮化物半导体层电连接的n型电极30; 与p型氮化物半导体层电连接的p型电极40; 从该元件中提取出在有源层区域中产生的偏振光的发光面; 以及条形结构50,其被设置用于发光面,并且具有大致平行于m面氮化物半导体层的a轴方向延伸的多个突起。
    • 36. 发明申请
    • GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR LIGHT-EMITTING DIODE
    • 基于氮化镓的化合物半导体发光二极管
    • US20120085986A1
    • 2012-04-12
    • US13321923
    • 2010-06-09
    • Junko IwanagaToshiya YokogawaAtsushi Yamada
    • Junko IwanagaToshiya YokogawaAtsushi Yamada
    • H01L33/04
    • H01L33/38H01L33/16H01L33/20H01L33/32H01L33/382
    • The light-emitting diode element of this invention includes: an n-type GaN substrate (7), of which the principal surface (7a) is an m plane; and a multilayer structure on the principal surface (7a) of the substrate (7), which includes an n-type semiconductor layer (2), an active layer (3) on a first region (2a) of the upper surface of the n-type semiconductor layer (2), a p-type semiconductor layer (4), an anode electrode layer (5), and a cathode electrode layer (6) on a second region (2b) of the upper surface of the n-type semiconductor layer (2). These layers (2, 3, 4) have all been grown epitaxially through an m-plane growth. The n-type dopant concentration in the substrate (7) and n-type semiconductor layer (2) is 1×1018 cm−3 or less. When viewed perpendicularly to the principal surface (7a), a gap of 4 μm or less is left between the anode and cathode electrode layers (5, 6) and the anode electrode layer (5) is arranged at a distance of 45 μm or less from an edge of the cathode electrode layer (6) that faces the anode electrode layer (5).
    • 本发明的发光二极管元件包括:主面(7a)为m面的n型GaN衬底(7); 以及在基板(7)的主表面(7a)上的多层结构,其包括n型半导体层(2),在n的上表面的第一区域(2a)上的有源层(3) 型半导体层(2),p型半导体层(4),阳极电极层(5)以及在n型上表面的第二区域(2b)上的阴极电极层 半导体层(2)。 这些层(2,3,4)全部通过m平面生长而外延生长。 基板(7)和n型半导体层(2)中的n型掺杂剂浓度为1×1018cm -3以下。 当垂直于主表面(7a)观察时,在阳极和阴极电极层(5,6)之间留下4μm或更小的间隙,并且阳极电极层(5)被布置在45μm或更小的距离处 从所述阴极电极层(6)的与所述阳极电极层(5)相对的边缘。