Method for production of a radiation-emitting semiconductor chip
    55.
    发明授权
    Method for production of a radiation-emitting semiconductor chip 有权
    辐射发射半导体芯片的制造方法

    公开(公告)号:US08273593B2

    公开(公告)日:2012-09-25

    申请号:US13027810

    申请日:2011-02-15

    IPC分类号: H01L21/66 H01L21/30

    CPC分类号: H01L33/22 H01L33/0079

    摘要: A method for micropatterning a radiation-emitting surface of a semiconductor layer sequence for a thin-film light-emitting diode chip, wherein the semiconductor layer sequence is grown on a substrate, a mirror layer is formed or applied on the semiconductor layer sequence, which reflects back into the semiconductor layer sequence at least part of a radiation that is generated in the semiconductor layer sequence during the operation thereof and is directed toward the mirror layer, the semiconductor layer sequence is separated from the substrate, and a separation surface of the semiconductor layer sequence, from which the substrate is separated, is etched by an etchant which predominantly etches at crystal defects and selectively etches different crystal facets at the separation surface.

    摘要翻译: 一种用于对薄膜发​​光二极管芯片的半导体层序列的辐射发射表面进行微图形化的方法,其中在衬底上生长半导体层序列,在半导体层序列上形成或施加镜面层, 在半导体层序列中在半导体层序列中产生的至少一部分辐射反射回半导体层序列并且朝向镜面层,半导体层序列与衬底分离,并且半导体层的分离表面 衬底分离的层序列被蚀刻剂蚀刻,蚀刻剂主要在晶体缺陷处蚀刻并选择性地蚀刻分离表面处的不同晶面。

    Luminescence diode chip with current spreading layer and method for producing the same
    56.
    发明授权
    Luminescence diode chip with current spreading layer and method for producing the same 有权
    具有电流扩散层的LED芯片及其制造方法

    公开(公告)号:US08017953B2

    公开(公告)日:2011-09-13

    申请号:US12158474

    申请日:2006-11-21

    IPC分类号: H01L27/15

    CPC分类号: H01L33/145 H01L33/42

    摘要: An LED chip is specified that comprises at least one current barrier. The current barrier is suitable for selectively preventing or reducing, by means of a reduced current density, the generation of radiation in a region laterally covered by the electrical connector body. The current spreading layer contains at least one TCO (Transparent Conductive Oxide). In a particularly preferred embodiment, at least one current barrier is contained which comprises material of the epitaxial semiconductor layer sequence, material of the current spreading layer and/or an interface between the semiconductor layer sequence and the current spreading layer. A method for producing an LED chip is also specified.

    摘要翻译: 指定包括至少一个电流屏障的LED芯片。 电流屏障适合于通过减小的电流密度选择性地防止或减少由电连接器主体横向覆盖的区域中的辐射的产生。 电流扩散层含有至少一种TCO(透明导电氧化物)。 在特别优选的实施例中,包含至少一个电流屏障,其包括外延半导体层序列的材料,电流扩展层的材料和/或半导体层序列和电流扩展层之间的界面。 还指定了用于制造LED芯片的方法。

    Method for fabricating a light-emitting device based on a gallium nitride-based compound semiconductor, and light-emitting device based on a gallium nitride-based compound semiconductor
    59.
    发明授权
    Method for fabricating a light-emitting device based on a gallium nitride-based compound semiconductor, and light-emitting device based on a gallium nitride-based compound semiconductor 有权
    基于氮化镓系化合物半导体的发光元件的制造方法以及基于氮化镓系化合物半导体的发光元件

    公开(公告)号:US07482181B2

    公开(公告)日:2009-01-27

    申请号:US10762097

    申请日:2004-01-20

    IPC分类号: H01L21/00

    摘要: A light-emitting device is based on a gallium nitride-based compound semiconductor. A light-emitting layer with a first and a second main surface is formed from a compound semiconductor based on gallium nitride. A first coating layer, which is joined to the first main surface of the light-emitting layer, is formed from an n-type compound semiconductor based on gallium nitride. The composition of which differs from that of the compound semiconductor of the light-emitting layer. A second coating layer, which is joined to the second main surface of the light-emitting layer, is formed from a p-type compound semiconductor based on gallium nitride, the composition of which differs from that of the compound semiconductor of the light-emitting layer. To improve the light yield of the device, the thickness of the light-emitting layer in the vicinity of dislocations is configured to be lower than in the remaining regions.

    摘要翻译: 发光器件基于氮化镓基化合物半导体。 具有第一和第二主表面的发光层由基于氮化镓的化合物半导体形成。 与发光层的第一主表面接合的第一涂层由基于氮化镓的n型化合物半导体形成。 其组成与发光层的化合物半导体的组成不同。 与发光层的第二主表面接合的第二涂层由基于氮化镓的p型化合物半导体形成,其组成与发光的化合物半导体的组成不同 层。 为了提高器件的光产量,位错附近的发光层的厚度被配置为低于其余区域中的厚度。

    Light emitting-diode chip and a method for producing same
    60.
    发明授权
    Light emitting-diode chip and a method for producing same 有权
    发光二极管芯片及其制造方法

    公开(公告)号:US07319247B2

    公开(公告)日:2008-01-15

    申请号:US10258340

    申请日:2001-03-16

    IPC分类号: H01L33/00

    摘要: An LED chip comprising an electrically conductive and radioparent substrate, in which the epitaxial layer sequence (3) is provided on substantially the full area of its p-side (9) with a reflective, bondable p-contact layer (6). The substrate (2) is provided on its main surface (10) facing away from the epitaxial layer sequence (3) with a contact metallization (7) that covers only a portion of said main surface (10), and the decoupling of light from the chip (1) takes place via a bare region of the main surface (10) of the substrate (2) and via the chip sides (14). A further LED chip has epitaxial layers only. The p-type epitaxial layer (5) is provided on substantially the full area of the main surface (9) facing away from the n-conductive epitaxial layer (4) with a reflective, bondable p-contact layer (6), and the n-conductive epitaxial layer (4) is provided on its main surface facing away from the p-conductive epitaxial layer (5) with an n-contact layer (7) that covers only a portion of said main surface (8). The decoupling of light from the chip (1) takes place via the bare region of the main surface (8) of the n-conductive epitaxial layer (4) and via the chip sides (14).

    摘要翻译: 一种LED芯片,其包括导电和无辐射基板,其中外延层序列(3)在其p侧(9)的基本上整个区域上设置有反射的,可粘合的p接触层(6)。 衬底(2)在其主表面(10)上设置为背离外延层序列(3),接触金属化(7)仅覆盖所述主表面(10)的一部分,并且光 芯片(1)经由衬底(2)的主表面(10)的裸露区域和芯片侧面(14)发生。 另外的LED芯片仅具有外延层。 p型外延层(5)通过反射型可结合的p接触层(6)设置在主表面(9)的背离n导电外延层(4)的大致整个区域上,并且 n导电外延层(4)在其主表面上设置有远离p导电外延层(5)的n-接触层(7),其仅覆盖所述主表面(8)的一部分。 来自芯片(1)的光的去耦通过n导电外延层(4)的主表面(8)的裸露区域和芯片侧(14)进行。