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    • 3. 发明申请
    • Type II broadband or polychromatic LED's
    • II型宽带或多色LED
    • US20060124938A1
    • 2006-06-15
    • US11009218
    • 2004-12-09
    • Thomas MillerMichael Haase
    • Thomas MillerMichael Haase
    • H01L33/00
    • H01L33/06H01L33/08H01L33/28
    • An LED is provided comprising two or more light-emitting Type II interfaces wherein at least two of the Type II interfaces differ in transition energy by at least 5%, or more typically by at least 10%, and wherein at least one of the Type II interfaces is within a pn junction. Alternately, an LED is provided comprising two or more light-emitting Type II interfaces wherein at least two of the Type II interfaces differ in transition energy by at least 5%, or more typically by at least 10%. The Type II interfaces may include interfaces from a layer which is an electron quantum well and not a hole quantum well, interfaces to a layer which is a hole quantum well and not an electron quantum well; and interfaces that satisfy both conditions simultaneously. The Type II interfaces may be within a pn or pin junction or not within a pn or pin junction. In the later case, emission from the Type II interfaces may be photopumped by a nearby light source. The LED may be a white or near-white light LED. In addition, graphic display devices and illumination devices comprising the semiconductor device according to the present invention are provided.
    • 提供包括两个或更多个发光II型界面的LED,其中II型界面中的至少两个界面的转换能量不同于至少5%,或更通常至少10%,并且其中至少一种类型 II接口位于pn结内。 或者,提供包括两个或更多个发光II型界面的LED,其中至少两个II型界面的跃迁能量不同于至少5%,或更通常至少10%。 II型界面可以包括来自作为电子量子阱而不是空穴量子阱的层的界面,其与作为空穴量子阱而不是电子量子阱的层接合; 和同时满足两个条件的接口。 II型接口可以在pn或pin结内,或者不在pn或pin结内。 在后一种情况下,II型接口的发射可能被附近的光源照射。 LED可以是白色或近白色的LED灯。 此外,提供了包括根据本发明的半导体器件的图形显示装置和照明装置。
    • 4. 发明申请
    • II-VI/III-V Layered construction on InP substrate
    • II-VI / III-V InP基板上的分层结构
    • US20050280013A1
    • 2005-12-22
    • US10871424
    • 2004-06-18
    • Xiaoguang SunThomas MillerMichael Haase
    • Xiaoguang SunThomas MillerMichael Haase
    • H01L31/0248H01S5/02H01S5/183H01S5/32H01L33/00
    • H01S5/183
    • A layered construction is provided comprising an InP substrate and alternating layers of II-VI and III-V materials. The alternating layers of II-VI and III-V materials are typically lattice-matched or pseudomorphic to the InP substrate. Typically the II-VI material is selected from the group consisting of ZnSe, CdSe, BeSe, MgSe, ZnTe, CdTe, BeTe, MgTe, ZnS, CdS, BeS, MgS and alloys thereof, more typically selected from the group consisting of CdZnSe, CdMgZnSe, BeZnTe, and BeMgZnTe alloys, and is most typically CdxZn1-xSe where x is between 0.44 and 0.54. Typically the III-V material is selected from the group consisting of InAs, AlAs, GaAs, InP, AlP, GaP, InSb, AlSb, GaSb, and alloys thereof, more typically selected from the group consisting of InP, InAlAs, GaInAs, AlInGaAs and GaInAsP alloys, and is most typically InP or InyAl1-yAs where y is between 0.44 and 0.52. In one embodiment, the layered construction forms one or more distributed Bragg reflectors (DBR's). In another aspect, the present invention provides a layered construction comprising: an InP substrate and a distributed Bragg reflector (DBR) having a reflectivity of 95% or greater which comprises no more than 15 layer pairs of epitaxial semiconductor materials. In another aspect, the present invention provides a laser comprising a layered construction according to the present invention. In another aspect, the present invention provides a photodetector comprising a layered construction according to the present invention.
    • 提供了包括InP衬底和II-VI和III-V材料的交替层的分层结构。 II-VI和III-V材料的交替层通常与InP衬底晶格匹配或伪构。 通常,II-VI材料选自ZnSe,CdSe,BeSe,MgSe,ZnTe,CdTe,BeTe,MgTe,ZnS,CdS,BeS,MgS及其合金,更典型地选自CdZnSe, CdMgZnSe,BeZnTe和BeMgZnTe合金,并且最典型的是Cd x Zn 1-x Se,其中x在0.44和0.54之间。 通常,III-V材料选自InAs,AlAs,GaAs,InP,AlP,GaP,InSb,AlSb,GaSb及其合金,更典型地选自InP,InAlAs,GaInAs,AlInGaAs 和GaInAsP合金,并且最典型地是InP或Al y Al 1-y,其中y在0.44和0.52之间。 在一个实施例中,分层结构形成一个或多个分布式布拉格反射器(DBR)。 另一方面,本发明提供了一种分层结构,其包括:InP衬底和具有95%或更大的反射率的分布式布拉格反射器(DBR),其包括不超过15层的外延半导体材料。 另一方面,本发明提供一种包括根据本发明的分层结构的激光器。 另一方面,本发明提供了一种包括根据本发明的分层结构的光电检测器。