Semiconductor light emitting device and fabrication method thereof

    公开(公告)号:US07030421B2

    公开(公告)日:2006-04-18

    申请号:US10962025

    申请日:2004-10-08

    IPC分类号: H01L33/00

    CPC分类号: H01L33/24

    摘要: Semiconductor light emitting devices and methods of producing same are provided. The semiconductor light emitting devices include a substrate that has a surface including a difference-in-height portion composed of, for example, a wurtzite compound. A crystal growth layer is formed in the substrate surface wherein at least a portion of which is oriented along an inclined plane with respect to a principal plane of the substrate. The semiconductor device includes a first conductive layer, an active layer and a second conductive layer formed on the crystal layer in a stacked arrangement and oriented along the inclined place.

    Selective growth method, and semiconductor light emitting device and fabrication method thereof
    123.
    发明授权
    Selective growth method, and semiconductor light emitting device and fabrication method thereof 有权
    选择性生长方法和半导体发光器件及其制造方法

    公开(公告)号:US06969670B2

    公开(公告)日:2005-11-29

    申请号:US10341827

    申请日:2003-01-14

    摘要: At the time of selective growth of an active layer on a substrate, crystal is previously grown in an active layer non-growth region, and the active layer is grown in an active layer selective growth region. With this configuration, a source supplied to the non-growth region is incorporated in the deposited crystal from the initial stage of growth, so that the supplied amount of the source to the active layer selective growth region is kept nearly at a constant value over the entire period of growth of the active layer, to eliminate degradation of characteristics of the device due to a variation in growth rate of the active layer. In particular, the selective growth method is effective in fabrication of a semiconductor light emitting device including a cladding layer, a guide layer, and an active layer, each of which is formed by selective growth, wherein the active layer has multiple quantum wells.

    摘要翻译: 在衬底上的有源层的选择性生长时,预先在有源层非生长区域中生长晶体,并且在活性层选择性生长区域中生长活性层。 利用这种构造,从生长的初始阶段将提供给非生长区的源结合到沉积的晶体中,使得向活性层选择生长区提供的源的量保持在恒定值 活性层的整个生长周期,以消除由于活性层的生长速率的变化引起的器件的特性劣化。 特别地,选择生长方法在制造包括包覆层,引导层和有源层的半导体发光器件中是有效的,其中每一个通过选择性生长形成,其中有源层具有多个量子阱。

    Semiconductor light emitting device and fabrication method thereof
    124.
    发明授权
    Semiconductor light emitting device and fabrication method thereof 有权
    半导体发光器件及其制造方法

    公开(公告)号:US06967353B2

    公开(公告)日:2005-11-22

    申请号:US10341706

    申请日:2003-01-14

    CPC分类号: H01L33/24 H01L33/18

    摘要: A semiconductor light emitting device includes a crystal layer formed on a substrate, the crystal layer having a tilt crystal plane tilted from the principal plane of the substrate, and a first conductive type layer, an active layer, and a second conductive type layer, which are formed on the crystal layer in such a manner as to extend within planes parallel to the tilt crystal plane, wherein the device has a shape formed by removing the apex and its vicinity of the stacked layer structure formed on the substrate. Such a semiconductor light emitting device is excellent in luminous efficiency even if the device has a three-dimensional device structure. The present invention also provides a method of fabricating the above semiconductor light emitting device.

    摘要翻译: 半导体发光器件包括形成在衬底上的晶体层,所述晶体层具有从衬底的主平面倾斜的倾斜晶体面,以及第一导电类型层,有源层和第二导电型层, 以平行于倾斜晶面的平面内延伸的方式形成在晶体层上,其中,该器件具有通过去除形成在基板上的堆叠层结构的顶点及其附近而形成的形状。 这种半导体发光器件即使器件具有三维器件结构,发光效率也优异。 本发明还提供一种制造上述半导体发光器件的方法。

    Image processing apparatus and image forming apparatus
    125.
    发明授权
    Image processing apparatus and image forming apparatus 失效
    图像处理装置和图像形成装置

    公开(公告)号:US06961150B2

    公开(公告)日:2005-11-01

    申请号:US09955188

    申请日:2001-09-19

    申请人: Hiroyuki Okuyama

    发明人: Hiroyuki Okuyama

    IPC分类号: G06K15/12 H04N1/409 G06K15/00

    CPC分类号: H04N1/4092 G06K15/1223

    摘要: An image processing apparatus includes an edge detecting unit which identifies an area of given image data as a gradation sequence area and a character/line art area and which outputs edge information of the character/line art, a level converting unit which generates a strength modulation signal so as to emphasize an edge of the character/line art area, a laser driver which outputs a laser drive signal in order to form a picture dot larger than a standard size in response to the strength modulation signal. Further, according to the present invention, it is possible to print an image with emphasizing an edge portion of a character/line art by a laser printer.

    摘要翻译: 图像处理装置包括边缘检测单元,其将给定图像数据的区域识别为灰度序列区域和字符/线条艺术区域,并且输出字符/线条图像的边缘信息;电平转换单元,其生成强度调制 信号以强调字符/线条艺术区域的边缘,激光驱动器,其响应于强度调制信号而输出激光驱动信号以形成大于标准尺寸的图像点。 此外,根据本发明,可以通过激光打印机来强调字符/线条艺术的边缘部分来打印图像。

    Semiconductor light emitting device, manufacturing method of a semiconductor light emitting device and connection structure of an electrode layer
    130.
    发明授权
    Semiconductor light emitting device, manufacturing method of a semiconductor light emitting device and connection structure of an electrode layer 有权
    半导体发光器件,半导体发光器件的制造方法和电极层的连接结构

    公开(公告)号:US06831300B2

    公开(公告)日:2004-12-14

    申请号:US10258157

    申请日:2003-05-07

    IPC分类号: H01L2922

    CPC分类号: H01L33/405 H01L33/32

    摘要: In a semiconductor light emitting device configured to extract light through a substrate thereof, an electrode layer is formed on a p-type semiconductor layer (such as p-type GaN layer) formed on an active layer, and a nickel layer is formed as a contact metal layer between the electrode layer and the p-type semiconductor layer and adjusted in thickness not to exceed the intrusion length of light generated in the active layer. Since the nickel layer is sufficiently thin, reflection efficiency can be enhanced.

    摘要翻译: 在被配置为通过其基板提取光的半导体发光器件中,在形成于有源层上的p型半导体层(例如p型GaN层)上形成电极层,并且形成镍层作为 电极层和p型半导体层之间的接触金属层的厚度不超过有源层中产生的光的侵入长度。 由于镍层足够薄,因此可以提高反射效率。