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    • 1. 发明申请
    • III -NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE
    • III -NITRIDE半导体发光器件
    • WO2005086244A1
    • 2005-09-15
    • PCT/KR2005/000618
    • 2005-03-04
    • EPIVALLEY CO., LTD.YOO, Tae KyungKIM, Chang TaePARK, Eun HyunJEON, Soo Kun
    • YOO, Tae KyungKIM, Chang TaePARK, Eun HyunJEON, Soo Kun
    • H01L33/00
    • H01L33/32
    • The present invention relates to a III-nitride semiconductor light emitting device comprising a plurality of III-nitride semiconductor layers including an active layer emitting light by recombination of electrons and holes, the plurality of III-nitride semiconductor layers having a p-type III-nitride semiconductor layer at the top thereof, an Si a C b N c (a.≥- 0,b>0,c ≥ O,a+c>0) layer grown on the p-type III-nitride semiconductor layer, the SiaCbNc (a ≥O,b>0,c ≥ 0,a+c>0) layer having an n-type conductivity and a thickness of l0 5ú to 500ú for the holes to be injected into the p-type III-nitride semiconductor layer by tunneling, and a p-side electrode formed on the SiaCbNc (a ≥- 0,b>0,c ≥ 0,a+c>0) layer. Generally, in III-nitride semiconductor light emitting devices, if a p-side electrode is formed directly on a p-type nitride semiconductor, high contact resistance is generated due to a high energy bandgap and low doping efficiency of the p-type nitride semiconductor. This makes the efficiency of the device degraded. According to the present invention, however, a Si a C b N c (a ≥ 0,b>0,c ≥- 0,a+c>O) layer which can be doped with a high concentration is intervened between a p-type nitride semiconductor and a p-side electrode. Therefore, the present invention can solve the conventional problem.
    • 本发明涉及包含多个III族氮化物半导体层的III族氮化物半导体发光器件,所述III族氮化物半导体层包括通过电子和空穴的复合发射光的有源层,所述多个III族氮化物半导体层具有p型III- 氮化物半导体层,在p型III族氮化物半导体层上生长的SiaCbNc(a => 0,b> 0,c> = O,a + c> 0)层,SiaCbNc(a > = 0,b> 0,c> = 0,a + c> 0)层,对于注入到p型III族氮化物半导体层中的空穴,具有n型导电性和105ú至500μ的厚度 以及形成在SiaCbNc(a> = - 0,b> 0,c> = 0,a + c> 0)层上的p侧电极。 通常,在III族氮化物半导体发光器件中,如果p侧电极直接形成在p型氮化物半导体上,则由于p型氮化物半导体的高能带隙和低掺杂效率而产生高接触电阻 。 这使得设备的效率降低。 然而,根据本发明,可以掺杂高浓度的SiaCbNc(a> = 0,b> 0,c> = - ,a + c> O)层介于p型氮化物半导体 和p侧电极。 因此,本发明可以解决常规问题。
    • 2. 发明申请
    • III-NITRIDE COMPOUND SEMICONDUCTOR LIGHT EMITTING DEVICE
    • III-NITRIDE化合物半导体发光器件
    • WO2005004247A1
    • 2005-01-13
    • PCT/KR2004/001625
    • 2004-07-02
    • EPIVALLEY CO., LTD.KIM, Chang TaeKIM, KeukJEON, Soo KunJANG, Pil GukKIM, Jong Won
    • KIM, Chang TaeKIM, KeukJEON, Soo KunJANG, Pil GukKIM, Jong Won
    • H01L33/00
    • H01L33/22H01L33/20H01L33/32
    • The present invention relates to a III-nitride semiconductor light-emitting device having high external quantum efficiency, provides a III-nitride compound semiconductor light-emitting device including an active layer generating light by recombination of electrons and holes and containing gallium and nitrogen, an n-type AI(x)ln(y)Ga(1-x-y)N layer epitaxially grown before the active layer is grown, and an n-type electrode electrically contacting with the n-type AI(x)ln(y)Ga(1-x-y)N layer, in which the n-type AI(x)ln(y)Ga(1-x-y)N layer has a surface which is exposed by etching and includes a region for scribing and breaking the device and a region for contact with the n-type electrode, and the surface of the region for scribing and breaking the device is roughened, thereby it is possible to increase external quantum efficiency of the light-emitting device.
    • 本发明涉及具有高外量子效率的III族氮化物半导体发光器件,提供了一种III族氮化物化合物半导体发光器件,其包括通过电子和空穴的复合产生光并含有镓和氮的有源层, 在有源层生长之前外延生长的n型Al(x)ln(y)Ga(1-xy)N层,以及与n型Al(x)ln(y)Ga电接触的n型电极 (1-xy)N层,其中n型Al(x)ln(y)Ga(1-xy)N层具有通过蚀刻暴露的表面,并且包括用于划线和断开器件的区域,以及 用于与n型电极接触的区域,并且用于划线和断裂器件的区域的表面被粗糙化,从而可以增加发光器件的外部量子效率。
    • 9. 发明申请
    • III-NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE
    • III-NITRIDE半导体发光器件
    • WO2007126282A1
    • 2007-11-08
    • PCT/KR2007/002120
    • 2007-04-30
    • EPIVALLEY CO., LTD.KIM, Chang TaeCHOI, Byeong Kyun
    • KIM, Chang TaeCHOI, Byeong Kyun
    • H01L33/00
    • H01L27/15
    • The present invention relates to a III-nitride semiconductor light emitting device including a plurality of nitride semiconductor layers including an active Iayer for generating light by recombination of electrons and holes, a light emitting diode region defined by separating the plurality of nitride semiconductor layers by etching, a protection element region separated from the light emitting diode region by the etching, for protecting the light emitting diode region from a voltage applied in a reverse direction, and a heat generation restriction portion formed at the center portion of the plurality of nitride semiconductor layers by the et ching, the light emission being not performed on the heat generation restriction portion, the protection element region being positioned at the heat generation restriction portion.
    • 本发明涉及一种III族氮化物半导体发光器件,其包括多个氮化物半导体层,该氮化物半导体层包括通过电子和空穴的复合产生光的有源层,通过蚀刻分离多个氮化物半导体层而限定的发光二极管区 ,通过蚀刻与发光二极管区域分离的保护元件区域,用于保护发光二极管区域免受逆向施加的电压;以及形成在多个氮化物半导体层的中心部分的发热限制部分 通过等待,在发热限制部分上不进行发光,保护元件区域位于发热限制部分。