Semiconductor laser device with coupled cavities
    32.
    发明授权
    Semiconductor laser device with coupled cavities 失效
    具有耦合腔的半导体激光器件

    公开(公告)号:US5353295A

    公开(公告)日:1994-10-04

    申请号:US927822

    申请日:1992-08-10

    Abstract: In a form of the disclosure an array of coupled cavities (called minicavities) of a QWH semiconductor laser are defined by a native oxide of an aluminum-bearing III-V semiconductor material and are arranged serially end-to-end along the longitudinal direction. The native oxide confines the injected carriers and optical field within the cavities, resulting in reflection and optical feedback distributed periodically along the laser stripe. Single-longitudinal-mode operation is exhibited over an extended range. In a further form of the disclosure, two linear arrays of end-coupled minicavities are arranged side by side to obtain a two dimensional array, with resultant lateral coupling between the linear arrays. The two dimensional array exhibits mode switching and multiple switching in the light power (L) versus current (I) characteristic (L-I) with increasing current. In another form of the disclosure, a stripe laser is transversely coupled (or side-coupled) with a linear array of end-coupled minicavities. Bistability and switching are demonstrated in the light versus current (L-I) characteristic of a native-oxide-defined structure of this type. The device, with internally coupled elements and the current partitioned among the elements, exhibits a large hysteresis in the L-I curve, with switching from the stimulated to the spontaneous regime occurring over substantial power (light) and current ranges.

    Abstract translation: 在本公开的形式中,QWH半导体激光器的耦合空腔(称为微小电位)的阵列由含铝III-V半导体材料的天然氧化物限定,并且沿纵向方向串联地串联设置。 天然氧化物将注入的载流子和光场限制在空腔内,导致沿着激光条带周期性地分布的反射和光学反馈。 单纵模操作在扩展范围内展现。 在本公开的另一形式中,并行布置两个端部耦合的微小的线性阵列以获得二维阵列,并且在线性阵列之间产生横向耦合。 二维阵列随着电流的增加呈现模式切换和光功率(L)与电流(I)特性(L-I)的多次切换。 在本公开的另一种形式中,条形激光器与端部耦合的微型半导体的线性阵列横向耦合(或侧耦合)。 在这种类型的自然氧化物定义的结构的光 - 电流(L-I)特性中证明了双稳态和开关。 具有内部耦合元件和在元件之间分配的电流的器件在L-I曲线中表现出大的滞后,从被激励到自发状态从基本功率(光)和电流范围发生。

    Silicon carbide semiconductor device and method for producing the same
    34.
    发明授权
    Silicon carbide semiconductor device and method for producing the same 有权
    碳化硅半导体器件及其制造方法

    公开(公告)号:US08222648B2

    公开(公告)日:2012-07-17

    申请号:US11991249

    申请日:2006-08-22

    Abstract: A silicon carbide semiconductor device (90), includes: 1) a silicon carbide substrate (1); 2) a gate electrode (7) made of polycrystalline silicon; and 3) an ONO insulating film (9) sandwiched between the silicon carbide substrate (1) and the gate electrode (7) to thereby form a gate structure, the ONO insulating film (9) including the followings formed sequentially from the silicon carbide substrate (1): a) a first oxide silicon film (O) (10), b) an SiN film (N) (11), and c) an SiN thermally-oxidized film (O) (12, 12a, 12b). Nitrogen is included in at least one of the following places: i) in the first oxide silicon film (O) (10) and in a vicinity of the silicon carbide substrate (1), and ii) in an interface between the silicon carbide substrate (1) and the first oxide silicon film (O) (10).

    Abstract translation: 碳化硅半导体器件(90)包括:1)碳化硅衬底(1); 2)由多晶硅制成的栅电极(7) 和3)夹在所述碳化硅衬底(1)和所述栅电极(7)之间的ONO绝缘膜(9),从而形成栅极结构,所述ONO绝缘膜(9)包括从所述碳化硅衬底 (1):a)第一氧化硅膜(O)(10),b)SiN膜(N)(11),和c)SiN热氧化膜(O)(12,12a,12b)。 氮在以下位置中的至少一个中包括:i)在第一氧化物硅膜(O)(10)中和在碳化硅衬底(1)附近,以及ii)在碳化硅衬底 (1)和第一氧化硅膜(O)(10)。

    Method for oxidizing a layer, and associated holding devices for a substrate
    35.
    发明授权
    Method for oxidizing a layer, and associated holding devices for a substrate 有权
    用于氧化层的方法以及用于衬底的相关保持装置

    公开(公告)号:US08011319B2

    公开(公告)日:2011-09-06

    申请号:US12573394

    申请日:2009-10-05

    Abstract: A holding device is presented in which a layer which is to be oxidized is processed, in a single-substrate process. The process temperature during the processing is recorded directly at the substrate or at a holding device for the substrate. The process includes introducing a substrate, which bears a layer to be oxidized uncovered in an edge region in a layer stack, into a heating device, passing an oxidation gas onto the substrate, heating the substrate to a process temperature, which is recorded during the processing via a temperature of the holding device which holds the substrate, and controlling the substrate temperature to a desired temperature or temperature curve during the processing.

    Abstract translation: 提出了一种保持装置,其中在单衬底工艺中处理待氧化的层。 处理期间的处理温度直接记录在基板或基板的保持装置上。 该方法包括将在衬层的边缘区域中被覆盖的未被覆盖的层的衬底引入到加热装置中,将氧化气体传递到衬底上,将衬底加热到​​处理温度,该过程温度在 通过保持基板的保持装置的温度进行处理,并且在处理期间将基板温度控制到期望的温度或温度曲线。

    Method of manufacturing semiconductor light emitting device and oxidation furnace

    公开(公告)号:US20060016397A1

    公开(公告)日:2006-01-26

    申请号:US11234156

    申请日:2005-09-26

    Applicant: Hironobu Sai

    Inventor: Hironobu Sai

    Abstract: A sample stand is set in a chamber provided with an observation window on its upper surface and a heater for heating a sample is provided in the vicinity of the sample stand. Then, a microscope, a camera and a television monitor are connected and mounted outside the observation window of the chamber. The microscope is mounted such that a specific layer of the sample is focused on and can be observed. According to a manufacturing method of the preset invention, oxidation treatment is performed in such equipment while an oxidation process of the specific layer (semiconductor layer for selective oxidation) of the sample is observed. As a result, the amount of oxidation of the semiconductor layer for selective oxidation can be strictly controlled, a semiconductor light emitting device which restricts a current into a certain region can be obtained with high yield ratio, and there is obtained an oxidation furnace which can precisely control the amount of oxidation of the semiconductor layer for selective oxidation.

    Method of manufacturing semiconductor light emitting device and oxidation furnace
    38.
    发明授权
    Method of manufacturing semiconductor light emitting device and oxidation furnace 失效
    制造半导体发光元件和氧化炉的方法

    公开(公告)号:US06979581B2

    公开(公告)日:2005-12-27

    申请号:US10318121

    申请日:2002-12-13

    Applicant: Hironobu Sai

    Inventor: Hironobu Sai

    Abstract: A sample stand is set in a chamber provided with an observation window on its upper surface and a heater for heating a sample is provided in the vicinity of the sample stand. Then, a microscope, a camera and a television monitor are connected and mounted outside the observation window of the chamber. The microscope is mounted such that a specific layer of the sample is focused on and can be observed. According to a manufacturing method of the preset invention, oxidation treatment is performed in such equipment while an oxidation process of the specific layer (semiconductor layer for selective oxidation) of the sample is observed. As a result, the amount of oxidation of the semiconductor layer for selective oxidation can be strictly controlled, a semiconductor light emitting device which restricts a current into a certain region can be obtained with high yield ratio, and there is obtained an oxidation furnace which can precisely control the amount of oxidation of the semiconductor layer for selective oxidation.

    Abstract translation: 将样品台设置在其上表面上设置有观察窗的室中,并且在样品台附近设置用于加热样品的加热器。 然后,将显微镜,照相机和电视监视器连接并安装在室的观察窗外部。 安装显微镜使得样品的特定层聚焦并可以观察到。 根据本发明的制造方法,在这样的设备中进行氧化处理,同时观察样品的特定层(选择性氧化的半导体层)的氧化工艺。 结果,可以严格控制用于选择性氧化的半导体层的氧化量,可以以高屈服比获得限制电流进入某一区域的半导体发光器件,并且获得可以 精确地控制用于选择性氧化的半导体层的氧化量。

    Method of fabrication for III-V semiconductor surface passivation
    40.
    发明申请
    Method of fabrication for III-V semiconductor surface passivation 失效
    III-V半导体表面钝化的制造方法

    公开(公告)号:US20030219994A1

    公开(公告)日:2003-11-27

    申请号:US10340481

    申请日:2003-01-10

    Abstract: A method passivates a surface of a semiconductor structure. The method provides III-V semiconductor material having a surface to be passivated. Upon the surface of the III-V semiconductor material to be passivated an oxide layer is formed. Thereafter, the surface of the III-V semiconductor material having the oxide layer is passivated, without desorption of the oxide layer and in a vacuum of 2null10null6 Torr, with a material having the ability to intermix with the oxide layer so as to exchange oxygen, passivation layer material, and III-V semiconductor material therebetween to form graded layers of oxidized III-V and passivation material.

    Abstract translation: 一种方法钝化半导体结构的表面。 该方法提供具有待钝化表面的III-V半导体材料。 在要钝化的III-V半导体材料的表面上形成氧化物层。 此后,具有氧化物层的III-V族半导体材料的表面被钝化,而不会氧化层的解吸,并且在2×10 -6乇的真空中,具有与氧化物层混合的材料,以便 以在其间交换氧,钝化层材料和III-V半导体材料,以形成氧化III-V和钝化材料的分级层。

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