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    • 2. 发明申请
    • GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE
    • 基于氮化镓的化合物半导体发光器件
    • WO2005074046A1
    • 2005-08-11
    • PCT/JP2005/001645
    • 2005-01-28
    • SHOWA DENKO K.KMURAKI, NoritakaWATANABE, MunetakaMIKI, HisayukiOHNO, Yasushi
    • MURAKI, NoritakaWATANABE, MunetakaMIKI, HisayukiOHNO, Yasushi
    • H01L33/00
    • H01L33/38H01L33/32H01L33/42
    • A gallium nitride compound semiconductor light-emitting device includes a crystalline substrate (10), a light-emitting layer (15) of a quantum well structure which is formed of a gallium nitride compound semiconductor barrier layer and a gallium nitride compound semiconductor well layer, which light-emitting layer is provided on a second side of the crystalline substrate, a contact layer (17) formed of a Group III-V compound semiconductor for providing an Ohmic electrode for supplying device operation current to the light-emitting layer, and an Ohmic electrode (18) which is provided on the contact layer and has an aperture through which a portion of the contact layer is exposed. The Ohmic electrode exhibits light permeability with respect to light emitted from the light-emitting layer. The well layer contains a thick portion having a large thickness and a thin portion having a small thickness.
    • 氮化镓系化合物半导体发光元件包括晶体基板(10),由氮化镓系化合物半导体势垒层和氮化镓系化合物半导体阱层形成的量子阱结构的发光层(15) 所述发光层设置在所述结晶基板的第二面上,由用于提供用于向所述发光层提供器件工作电流的欧姆电极的III-V族化合物半导体形成的接触层(17) 欧姆电极(18),其设置在接触层上并且具有孔,接触层的一部分穿过该孔露出。 欧姆电极相对于从发光层发射的光呈现透光性。 阱层包含厚度较大的厚壁部分和厚度较小的薄壁部分。
    • 4. 发明申请
    • GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE
    • 基于氮化镓的化合物半导体发光器件
    • WO2007029841A1
    • 2007-03-15
    • PCT/JP2006/317930
    • 2006-09-05
    • SHOWA DENKO K.K.SHINOHARA, HironaoMIKI, HisayukiMURAKI, Noritaka
    • SHINOHARA, HironaoMIKI, HisayukiMURAKI, Noritaka
    • H01L33/00
    • H01L33/025H01L33/0095H01L33/32H01L33/42
    • It is an object of the present invention to provide a gallium nitride-based compound semiconductor light-emitting device that is excellent in light output efficiency and needs only a low driving voltage (Vf). The inventive gallium nitride-based compound semiconductor light-emitting device includes an n-type semiconductor layer, a light-emitting layer and a p-type semiconductor layer formed of a gallium nitride-based compound semiconductor and stacked in this order on a substrate, and positive and negative electrodes so arranged as to be in contact with the p-type semiconductor layer and the n-type semiconductor layer, respectively, wherein a region in which a p-type impurity and hydrogen atoms are co-present exists in the p-type semiconductor layer in contact with the positive electrode, and at least a portion, which is in contact with the p-type semiconductor layer, of the positive electrode, is formed of an n-type electro-conductive light transmitting material.
    • 本发明的目的是提供一种氮化镓系化合物半导体发光元件,该氮化镓系化合物半导体发光元件的光输出效率优异,仅需低驱动电压(Vf)。 本发明的氮化镓系化合物半导体发光元件包括n型半导体层,发光层和由氮化镓系化合物半导体形成的p型半导体层,并依次层叠在基板上, 以及分别与p型半导体层和n型半导体层接触的正极和负极,其中在p中存在p型杂质和氢原子共存的区域 与正极接触的至少一部分与正极的p型半导体层接触的至少一部分由n型导电透光材料形成。