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    • 3. 发明申请
    • Semiconductor Light Emitting Device
    • 半导体发光装置
    • US20090206357A1
    • 2009-08-20
    • US11884456
    • 2006-02-15
    • Norikazu ItoKazuaki TsutsumiToshio NishidaMasayuki SonobeMitsuhiko SakaiAtsushi Yamaguchi
    • Norikazu ItoKazuaki TsutsumiToshio NishidaMasayuki SonobeMitsuhiko SakaiAtsushi Yamaguchi
    • H01L33/00
    • H01L33/38H01L33/20
    • There is provided a nitride semiconductor light emitting device in which a semiconductor layer is not broken easily even when a reverse voltage is applied or even in long time operation, and excellent reliability is obtained, by preventing semiconductor layers from deterioration when manufacturing a device. On a surface of a substrate (1), a semiconductor lamination portion (6) made of nitride semiconductor, including a first conductivity type layer (p-type layer (5)) and a second conductivity type layer (n-type layer (3)), is formed, a p-side electrode (8) is provided through a light transmitting conductive layer (7) thereon electrically connected to the p-type layer (5), and an n-side electrode (9) is provided electrically connected to the n-type layer (3) of the lower layer side of the semiconductor lamination portion(6). A mesa-like semiconductor lamination portion (6a) is formed by removing a part of the semiconductor lamination portion (6) around a chip by etching, and the mesa-like semiconductor lamination portion (6a) is formed such that a corner part having an angle of 90 degrees or less is rounded and has a curved line in a plan shape, thereby not to have an angle of 90 degrees or less on corner parts.
    • 提供了一种氮化物半导体发光器件,其中即使当施加反向电压或者甚至长时间操作时,半导体层也不容易损坏,并且通过在制造器件时防止半导体层劣化,可以获得优异的可靠性。 在基板(1)的表面上,由氮化物半导体构成的包括第一导电型层(p型层(5))和第二导电型层(n型层(3))的半导体层叠部(6) )),通过其上与p型层(5)电连接的透光导电层(7)设置p侧电极(8),并且n侧电极(9)电气地 连接到半导体层叠部分(6)的下层侧的n型层(3)。 通过蚀刻去除芯片周围的半导体层叠部分(6)的一部分形成台面状半导体层叠部(6a),并且形成台面状半导体层叠部(6a),使得具有 90度以下的角度是圆形的,并且具有平面形状的曲线,从而在角部不具有90度或更小的角度。
    • 10. 发明申请
    • Nitride Semiconductor Light Emitting Device
    • 氮化物半导体发光器件
    • US20090278144A1
    • 2009-11-12
    • US12085564
    • 2006-11-28
    • Masayuki SonobeNorikazu ItoMitsuhiko Sakai
    • Masayuki SonobeNorikazu ItoMitsuhiko Sakai
    • H01L33/00
    • H01S5/18358B82Y20/00H01L33/105H01L33/32H01S5/34333
    • There is provided a nitride semiconductor light emitting device having a light reflection layer capable of preventing reflectivity from lowering and luminance from lowering due to deterioration of quality of an active layer. A nitride semiconductor laser includes at least a light emitting layer forming portion (3) provided on a first light reflection layer (2) provided on a substrate (1). The first light reflection layer (2) is formed with laminating a low refractivity layer (21) and a high refractivity layer (22) which have a different refractivity from each other, and the low refractivity layer (21) of the first light reflection layer is formed with a single layer structure of an AlxGa1-xN layer (0≦x≦1), and the high refractivity layer (22) of the first light reflection layer is formed with a multi layer structure formed by laminating alternately an AlyGa1-yN layer (0≦y≦0.5 and y
    • 提供一种氮化物半导体发光器件,其具有能够防止由于有源层的质量劣化而引起的反射率降低和降低亮度的光反射层。 氮化物半导体激光器至少包括设置在设置在基板(1)上的第一光反射层(2)上的发光层形成部(3)。 第一光反射层(2)形成为具有彼此不同的折射率的低折射率层(21)和高折射率层(22),并且第一光反射层的低折射率层(21) 形成有Al x Ga 1-x N层(0 <= x <= 1)的单层结构,并且第一光反射层的高折射率层(22)形成有多层结构,其通过交替层叠AlyGa1 -yN层(0 <= y <= 0.5和y