Method for manufacturing nitride semiconductor layer
    32.
    发明授权
    Method for manufacturing nitride semiconductor layer 有权
    氮化物半导体层的制造方法

    公开(公告)号:US09349590B2

    公开(公告)日:2016-05-24

    申请号:US13604183

    申请日:2012-09-05

    IPC分类号: H01L21/02 H01L33/00 H01L33/12

    摘要: According to one embodiment, a method for manufacturing a nitride semiconductor layer is disclosed. The method can include forming a first lower layer on a major surface of a substrate and forming a first upper layer on the first lower layer. The first lower layer has a first lattice spacing along a first axis parallel to the major surface. The first upper layer has a second lattice spacing along the first axis larger than the first lattice spacing. At least a part of the first upper layer has compressive strain. A ratio of a difference between the first and second lattice spacing to the first lattice spacing is not less than 0.005 and not more than 0.019. A growth rate of the first upper layer in a direction parallel to the major surface is larger than that in a direction perpendicular to the major surface.

    摘要翻译: 根据一个实施例,公开了一种用于制造氮化物半导体层的方法。 该方法可以包括在基底的主表面上形成第一下层,并在第一下层上形成第一上层。 第一下层沿着平行于主表面的第一轴线具有第一格子间距。 第一上层具有沿着第一轴线的第二格子间距大于第一格子间距。 第一上层的至少一部分具有压缩应变。 第一和第二格子间隔之间的差与第一格子间隔的比率不小于0.005且不大于0.019。 第一上层在与主表面平行的方向上的生长速率大于垂直于主表面的方向的生长速率。

    Nitride semiconductor wafer, nitride semiconductor device, and method for manufacturing nitride semiconductor wafer
    34.
    发明授权
    Nitride semiconductor wafer, nitride semiconductor device, and method for manufacturing nitride semiconductor wafer 有权
    氮化物半导体晶片,氮化物半导体器件以及氮化物半导体晶片的制造方法

    公开(公告)号:US09053931B2

    公开(公告)日:2015-06-09

    申请号:US13626265

    申请日:2012-09-25

    摘要: According to one embodiment, a nitride semiconductor wafer includes: a silicon substrate; a buffer section provided on the silicon substrate; and a functional layer provided on the buffer section and contains nitride semiconductor. The buffer section includes first to n-th buffer layers (n being an integer of 4 or more) containing nitride semiconductor. An i-th buffer layer (i being an integer of 1 or more and less than n) of the first to n-th buffer layers has a lattice length Wi in a first direction parallel to a major surface of the first buffer layer. An (i+1)-th buffer layer provided on the i-th buffer layer has a lattice length W(i+1) in the first direction. In the first to n-th buffer layers the i-th buffer layer and the (i+1)-th buffer layer satisfy relation of (W(i+1)−Wi)/Wi≦0.008.

    摘要翻译: 根据一个实施例,氮化物半导体晶片包括:硅衬底; 设置在所述硅基板上的缓冲部; 以及设置在缓冲部上并包含氮化物半导体的功能层。 缓冲部包括含有氮化物半导体的第一〜第n缓冲层(n为4以上的整数)。 第一至第n缓冲层的第i个缓冲层(i为1以上且小于n的整数)在平行于第一缓冲层的主面的第一方向上具有晶格长度Wi。 设置在第i个缓冲层上的第(i + 1)个缓冲层在第一方向上具有晶格长度W(i + 1)。 在第一至第n缓冲层中,第i个缓冲层和第(i + 1)个缓冲层满足关系式(W(i + 1)-Wi)/ W i≦̸ 0。008。

    Semiconductor light emitting device, nitride semiconductor layer, and method for forming nitride semiconductor layer
    35.
    发明授权
    Semiconductor light emitting device, nitride semiconductor layer, and method for forming nitride semiconductor layer 有权
    半导体发光器件,氮化物半导体层和形成氮化物半导体层的方法

    公开(公告)号:US08829544B2

    公开(公告)日:2014-09-09

    申请号:US13406770

    申请日:2012-02-28

    IPC分类号: H01L33/32 H01L33/20 H01L33/12

    摘要: According to an embodiment, a semiconductor light emitting device includes a foundation layer, a first semiconductor layer, a light emitting layer, and a second semiconductor layer. The foundation layer has an unevenness having recesses, side portions, and protrusions. A first major surface of the foundation layer has an overlay-region. The foundation layer has a plurality of dislocations including first dislocations whose one ends reaching the recess and second dislocations whose one ends reaching the protrusion. A proportion of a number of the second dislocations reaching the first major surface to a number of all of the second dislocations is smaller than a proportion of a number of the first dislocations reaching the first major surface to a number of all of the first dislocations. A number of the dislocations reaching the overlay-region of the first major surface is smaller than a number of all of the first dislocations.

    摘要翻译: 根据实施例,半导体发光器件包括基底层,第一半导体层,发光层和第二半导体层。 基底层具有凹部,侧部和突起部的凹凸。 基础层的第一主表面具有覆盖区域。 基底层具有多个位错,其包括一端到达凹部的第一位错和一端到达突起的第二位错。 到达第一主表面的第二位错的数量与所有第二位错的数量的比例小于到达第一主表面的第一位错的数量与所有第一位错的数量的比例。 到达第一主表面的覆盖区域的多个位错小于所有第一位错的数量。

    NITRIDE SEMICONDUCTOR WAFER, NITRIDE SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING NITRIDE SEMICONDUCTOR WAFER
    36.
    发明申请
    NITRIDE SEMICONDUCTOR WAFER, NITRIDE SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING NITRIDE SEMICONDUCTOR WAFER 有权
    氮化物半导体器件,氮化物半导体器件和制造氮化物半导体器件的方法

    公开(公告)号:US20140061693A1

    公开(公告)日:2014-03-06

    申请号:US13626265

    申请日:2012-09-25

    摘要: According to one embodiment, a nitride semiconductor wafer includes: a silicon substrate; a buffer section provided on the silicon substrate; and a functional layer provided on the buffer section and contains nitride semiconductor. The buffer section includes first to n-th buffer layers (n being an integer of 4 or more) containing nitride semiconductor. An i-th buffer layer (i being an integer of 1 or more and less than n) of the first to n-th buffer layers has a lattice length Wi in a first direction parallel to a major surface of the first buffer layer. An (i+1)-th buffer layer provided on the i-th buffer layer has a lattice length W(i+1) in the first direction. In the first to n-th buffer layers the i-th buffer layer and the (i+1)-th buffer layer satisfy relation of (W(i+1)−Wi)/Wi≦0.008.

    摘要翻译: 根据一个实施例,氮化物半导体晶片包括:硅衬底; 设置在所述硅基板上的缓冲部; 以及设置在缓冲部上并包含氮化物半导体的功能层。 缓冲部包括含有氮化物半导体的第一〜第n缓冲层(n为4以上的整数)。 第一至第n缓冲层的第i个缓冲层(i为1以上且小于n的整数)在平行于第一缓冲层的主面的第一方向上具有晶格长度Wi。 设置在第i个缓冲层上的第(i + 1)个缓冲层在第一方向上具有晶格长度W(i + 1)。 在第一至第n缓冲层中,第i个缓冲层和第(i + 1)个缓冲层满足关系式(W(i + 1)-Wi)/ Wi0.008。

    Semiconductor light emitting device and method of manufacturing the same
    37.
    发明授权
    Semiconductor light emitting device and method of manufacturing the same 有权
    半导体发光器件及其制造方法

    公开(公告)号:US08399896B2

    公开(公告)日:2013-03-19

    申请号:US12875503

    申请日:2010-09-03

    IPC分类号: H01L33/30 H01L33/32

    摘要: According to one embodiment, a semiconductor light emitting device includes n-type and p-type semiconductor layers, barrier layers, and a well layer. The n-type and p-type semiconductor layers and the barrier layers include nitride semiconductor. The barrier layers are provided between the n-type and p-type semiconductor layers. The well layer is provided between the barrier layers, has a smaller band gap energy than the barrier layers, and includes InGaN. At least one of the barrier layers includes first, second, and third layers. The second layer is provided closer to the p-type semiconductor layer than the first layer. The third layer is provided closer to the p-type semiconductor layer than the second layer. The second layer includes AlxGa1−xN (0

    摘要翻译: 根据一个实施例,半导体发光器件包括n型和p型半导体层,势垒层和阱层。 n型和p型半导体层和阻挡层包括氮化物半导体。 阻挡层设置在n型和p型半导体层之间。 阱层设置在阻挡层之间,具有比阻挡层更小的带隙能量,并且包括InGaN。 阻挡层中的至少一个包括第一层,第二层和第三层。 第二层比第一层更靠近p型半导体层。 第三层比第二层更靠近p型半导体层。 第二层包括Al x Ga 1-x N(0

    SEMICONDUCTOR LIGHT-EMITTING DEVICE
    38.
    发明申请
    SEMICONDUCTOR LIGHT-EMITTING DEVICE 有权
    半导体发光器件

    公开(公告)号:US20130234106A1

    公开(公告)日:2013-09-12

    申请号:US13601454

    申请日:2012-08-31

    IPC分类号: H01L33/12

    CPC分类号: H01L33/32 H01L33/06 H01L33/12

    摘要: According to one embodiment, a semiconductor light-emitting device includes: a first conductivity type first semiconductor layer containing a nitride semiconductor crystal and having a tensile stress in a (0001) surface; a second conductivity type second semiconductor layer containing a nitride semiconductor crystal and having a tensile stress in the (0001) surface; a light emitting layer provided between the first semiconductor layer and the second semiconductor layer, containing a nitride semiconductor crystal, and having an average lattice constant larger than the lattice constant of the first semiconductor layer; and a first stress application layer provided on a side opposite to the light emitting layer of the first semiconductor layer and applying a compressive stress to the first semiconductor layer.

    摘要翻译: 根据一个实施例,半导体发光器件包括:包含氮化物半导体晶体并且在(0001)表面中具有拉伸应力的第一导电类型的第一半导体层; 含有氮化物半导体晶体并在(0001)表面具有拉伸应力的第二导电类型的第二半导体层; 设置在所述第一半导体层和所述第二半导体层之间的包含氮化物半导体晶体并且具有大于所述第一半导体层的晶格常数的平均晶格常数的发光层; 以及第一应力施加层,其设置在与所述第一半导体层的所述发光层相对的一侧上,并向所述第一半导体层施加压缩应力。

    Semiconductor light emitting device, nitride semiconductor layer growth substrate, and nitride semiconductor wafer
    39.
    发明授权
    Semiconductor light emitting device, nitride semiconductor layer growth substrate, and nitride semiconductor wafer 有权
    半导体发光器件,氮化物半导体层生长衬底和氮化物半导体晶片

    公开(公告)号:US08823016B2

    公开(公告)日:2014-09-02

    申请号:US13404553

    申请日:2012-02-24

    摘要: According to one embodiment, a semiconductor light emitting device includes a first semiconductor layer of a first conductivity type and having a major surface, a second semiconductor layer of a second conductivity type, and a light emitting layer provided between the first and second semiconductor layers. The major surface is opposite to the light emitting layer. The first semiconductor layer has structural bodies provided in the major surface. The structural bodies are recess or protrusion. A centroid of a first structural body aligns with a centroid of a second structural body nearest the first structural. hb, rb, and Rb satisfy rb/(2·hb)≦0.7, and rb/Rb

    摘要翻译: 根据一个实施例,半导体发光器件包括第一导电类型的第一半导体层,具有主表面,第二导电类型的第二半导体层和设置在第一和第二半导体层之间的发光层。 主表面与发光层相对。 第一半导体层具有设置在主表面上的结构体。 结构体是凹陷或突起。 第一结构体的质心与最靠近第一结构的第二结构体的质心对齐。 hb,rb和Rb满足rb /(2·hb)&nlE; 0.7和rb / Rb <1,其中hb是凹部的深度,rb是凹部的底部的宽度,Rb是 突起的宽度。

    NITRIDE SEMICONDUCTOR WAFER, NITRIDE SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING NITRIDE SEMICONDUCTOR WAFER
    40.
    发明申请
    NITRIDE SEMICONDUCTOR WAFER, NITRIDE SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING NITRIDE SEMICONDUCTOR WAFER 有权
    氮化物半导体器件,氮化物半导体器件和制造氮化物半导体器件的方法

    公开(公告)号:US20140084296A1

    公开(公告)日:2014-03-27

    申请号:US13729713

    申请日:2012-12-28

    IPC分类号: H01L29/20 H01L21/02

    摘要: A nitride semiconductor wafer includes a silicon substrate, a stacked multilayer unit, a silicon-containing unit, and an upper layer unit. The silicon substrate has a major surface. The stacked multilayer unit is provided on the major surface. The stacked multilayer unit includes N number of buffer layers. The buffer layers include an i-th buffer layer, and an (i+1)-th buffer layer provided on the i-th buffer layer. The i-th buffer layer has an i-th lattice length Wi in a first direction parallel to the major surface. The (i+1)-th buffer layer has an (i+1)-th lattice length W(i+1) in the first direction. A relation that (W(i+1)−Wi)/Wi≦0.008 is satisfied for all the buffer layers. The silicon-containing unit is provided on the stacked multilayer unit. The upper layer unit is provided on the silicon-containing unit.

    摘要翻译: 氮化物半导体晶片包括硅衬底,堆叠多层单元,含硅单元和上层单元。 硅衬底具有主表面。 堆叠的多层单元设置在主表面上。 堆叠的多层单元包括N个缓冲层。 缓冲层包括第i个缓冲层和设置在第i个缓冲层上的第(i + 1)个缓冲层。 第i个缓冲层在平行于主表面的第一方向上具有第i个晶格长度Wi。 第(i + 1)个缓冲层在第一方向具有第(i + 1)个格子长度W(i + 1)。 对于所有缓冲层,满足(W(i + 1)-Wi)/ Wi&nlE; 0.008的关系。 含硅单元设置在堆叠的多层单元上。 上层单元设置在含硅单元上。