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    • 73. 发明授权
    • Semiconductor laser diode
    • 半导体激光二极管
    • US06873634B2
    • 2005-03-29
    • US09964463
    • 2001-09-28
    • Masaaki OnomuraMariko SuzukiMasayuki Ishikawa
    • Masaaki OnomuraMariko SuzukiMasayuki Ishikawa
    • H01S5/00H01S5/02H01S5/20H01S5/323H01S5/343
    • B82Y20/00H01S5/0213H01S5/0655H01S5/2004H01S5/34333
    • The present invention provides a nitride semiconductor laser by which stable high power room-temperature continuous-wave oscillation in fundamental mode is possible. A semiconductor laser diode comprising: a GaN layer; a first conductive type nitride semiconductor layer formed on said GaN layer and made of AlxGa1-xN(0.04≦x≦0.08); a first conductive type clad layer formed on said first conductive type nitride semiconductor layer and made of nitride semiconductor; a core area formed on said first conductive type clad layer and made of nitride semiconductor, said core area including an active layer to emit light by electric current injection; and a second conductive type clad layer formed on said core area and made of nitride semiconductor.
    • 本发明提供一种氮化物半导体激光器,通过该氮化物半导体激光器可以实现基模的稳定的高功率室温连续波振荡。 一种半导体激光二极管,包括:GaN层; 形成在所述GaN层上并由Al x Ga 1-x N(0.04 <= x <= 0.08)制成的第一导电型氮化物半导体层; 形成在所述第一导电型氮化物半导体层上并由氮化物半导体制成的第一导电型覆盖层; 形成在所述第一导电型覆盖层上并由氮化物半导体构成的芯区,所述芯区包括通过电流注入发光的有源层; 以及形成在所述芯区域上并由氮化物半导体制成的第二导电型覆盖层。
    • 78. 发明授权
    • Nitride compound semiconductor light emitting device
    • 氮化物半导体发光元件
    • US06242761B1
    • 2001-06-05
    • US09026941
    • 1998-02-20
    • Hidetoshi FujimotoJohn RennieMasahiro YamamotoMasayuki IshikawaShinya NunoueLisa Sugiura
    • Hidetoshi FujimotoJohn RennieMasahiro YamamotoMasayuki IshikawaShinya NunoueLisa Sugiura
    • H01L2972
    • H01L33/145H01L33/32H01S5/2205H01S5/2206H01S5/2214H01S5/2226H01S5/2231H01S5/32341
    • In order to remove the problems in conventional nitride compound semiconductor laser structures, namely, high operation voltage caused by a high resistance in a p-type layer and a high contact resistance of an electrode, damage to the crystal caused by dry etching, insufficient current injection, and the need for a high current density, a nitride compound semiconductor light emitting device has current blocking layers made of n-type B(1−x−y−z)InxAlyGazN (0≦x≦1, 0≦y≦1, 0≦z≦1) single crystal containing an oxide of a predetermined metal, carbon and impurities exhibiting p-type and n-type conductivity, or i-type B(1−x−y−z)InxAlyGazN (0≦x≦1, 0≦y≦1, 0≦z≦1) single crystal in which carriers are inactivated by hydrogen or oxygen to realize an internal current blocking structure without the need for dry etching. By applying a reverse bias voltage, the semiconductor can be activated only along a current path, and the remainder region is utilized as a current blocking layer. When the n-side electrode has a unique three-layered structure, a reduction in contact resistance and good wire bonding are promised.
    • 为了消除常规氮化物化合物半导体激光器结构中的问题,即由p型层中的高电阻引起的高操作电压和电极的高接触电阻,由干蚀刻引起的晶体损坏,电流不足 注入,并且需要高电流密度,氮化物化合物半导体发光器件具有由n型B(1-xyz)In x AlyGazN(0≤x≤1,0<= y <= 1)形成的电流阻挡层 ,0 <= z <= 1)含有预定金属的氧化物的单晶,碳和表现出p型和n型导电性的杂质,或i型B(1-xyz)In x AlyGazN(0 <= x < 1,0 <= y <= 1,0 <= z <= 1)其中载体被氢或氧灭活以实现内部电流阻挡结构而不需要干法蚀刻的单晶。 通过施加反向偏置电压,半导体只能沿着电流路径被激活,并且剩余区域被用作电流阻挡层。 当n侧电极具有独特的三层结构时,承诺了接触电阻的降低和良好的引线接合。