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    • 13. 发明授权
    • Gallium nitride-based compound semiconductor multilayer structure and production method thereof
    • 氮化镓基化合物半导体多层结构及其制备方法
    • US07521777B2
    • 2009-04-21
    • US11392767
    • 2006-03-30
    • Hisao SatoHisayuki Miki
    • Hisao SatoHisayuki Miki
    • H01L21/4763
    • H01L29/2003H01L33/06H01L33/32
    • The object of the present invention is to provide a gallium nitride-based compound semiconductor multilayer structure useful for manufacturing a gallium nitride-based compound semiconductor light-emitting device which requires a low operating voltage and from which a good emission output can be obtained. The present gallium nitride-based compound semiconductor multilayer structure comprises a substrate having thereon an n-type layer, a light-emitting layer and a p-type layer, the light-emitting layer having a multiple quantum well structure in which a well layer and a barrier layer are alternately stacked repeatedly and the light-emitting layer being provided between the n-type layer and the p-type layer, wherein the well layers consisting of the multiple quantum well structure comprise a well layer having an ununiform thickness and a well layer having a uniform thickness.
    • 本发明的目的是提供一种氮化镓系化合物半导体多层结构,其可用于制造氮化镓系化合物半导体发光装置,该氮化镓系化合物半导体发光装置需要低的工作电压,并且能够获得良好的发光输出。 目前的氮化镓系化合物半导体多层结构体包括其上具有n型层,发光层和p型层的衬底,所述发光层具有多量子阱结构,其中阱层和 阻挡层被重复地交替层叠并且发光层设置在n型层和p型层之间,其中由多量子阱结构构成的阱层包括具有不均匀厚度的阱层和阱 层具有均匀的厚度。
    • 16. 发明申请
    • Gallium Nitride-Based Compound Semiconductor Light-Emitting Device
    • 基于氮化镓的复合半导体发光器件
    • US20080048172A1
    • 2008-02-28
    • US10586909
    • 2005-01-28
    • Noritaka MurakiMunetaka WatanabeHisayuki MikiYasushi Ohno
    • Noritaka MurakiMunetaka WatanabeHisayuki MikiYasushi Ohno
    • H01L33/00
    • H01L33/38H01L33/32H01L33/42
    • A gallium nitride compound semiconductor light-emitting device includes a crystalline substrate (10), a light-emiting 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构成的量子阱结构的结晶性基板(10),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。
    • 18. 发明申请
    • Transparent electrode
    • 透明电极
    • US20060175682A1
    • 2006-08-10
    • US11348486
    • 2006-02-07
    • Noritaka MurakiMunetaka WatanabeYasushi OhonoHisayuki Miki
    • Noritaka MurakiMunetaka WatanabeYasushi OhonoHisayuki Miki
    • H01L31/00
    • H01L33/42H01L33/32H01L33/40
    • A transparent electrode for use in a gallium nitride-based compound semiconductor light-emitting device having an emission wavelength of 440 nm or less, includes a metal layer disposed in contiguity to a p-type semiconductor layer and a current diffusion layer disposed on the metal layer. The transparent electrode contains substantially no Au in the whole region thereof. The metal layer contains any one element selected from the group consisting of Pt, Ir, Ru and Rh as a main component. The current diffusion layer contains any one element selected from the group consisting of Pt, Ir, Ru and Rh as a main component except for the case where the metal layer and the current diffusion layer have the same composition. It is possible to provide a white light-emitting device provided with the transparent electrode, a white light-emitting lamp using the white light-emitting device and a lighting fixture using the white light-emitting lamp.
    • 用于发射波长为440nm以下的氮化镓系化合物半导体发光元件的透明电极包括与p型半导体层相邻设置的金属层和设置在金属上的电流扩散层 层。 透明电极在其整个区域基本上不含Au。 金属层含有选自由Pt,Ir,Ru和Rh组成的组中的任何一种元素作为主要成分。 除了金属层和电流扩散层具有相同组成的情况之外,电流扩散层包含选自由Pt,Ir,Ru和Rh组成的组中的任何一种元素作为主要成分。 可以提供一种设置有透明电极的白色发光装置,使用白色发光装置的白色发光灯和使用白色发光灯的照明器具。