High electron mobility transistor
    1.
    发明授权
    High electron mobility transistor 失效
    高电子迁移率晶体管

    公开(公告)号:US5319223A

    公开(公告)日:1994-06-07

    申请号:US918057

    申请日:1992-07-24

    CPC分类号: H01L29/7783

    摘要: A high electron mobility transistor (HEMT) comprises an InGaAs channel layer formed on a semi-insulating InP substrate via a buffer layer, and an n-type InA.iota.As electron supply layer formed on the channel layer via a spacer layer. On the electron supply layer, formed is an InGaA.iota.P Schottky contact layer, on which a Schottky gate electrode is formed. Source and drain electrodes are formed on the Schottky contact layer via an InGaAs ohmic contact layer, interposing the Schottky gate electrode therebetween. Thus, there is provided an InA.iota.As/InGaAs HEMT having a high gate breakdown voltage, and exhibiting a small variance of characteristics.

    摘要翻译: 高电子迁移率晶体管(HEMT)包括通过缓冲层形成在半绝缘InP衬底上的InGaAs沟道层,以及通过间隔层形成在沟道层上的n型InAiAAsAs电子供给层。 在电子供给层上,形成有形成肖特基型栅电极的InGaA iota P肖特基接触层。 源极和漏极通过InGaAs欧姆接触层在肖特基接触层上形成,其间插入肖特基栅电极。 因此,提供了具有高栅极击穿电压并且表现出小的特性差异的InA iAAsAs / InGaAs HEMT。

    Nitride semiconductor device
    4.
    发明授权
    Nitride semiconductor device 失效
    氮化物半导体器件

    公开(公告)号:US07498618B2

    公开(公告)日:2009-03-03

    申请号:US11507493

    申请日:2006-08-22

    IPC分类号: H01L29/778

    摘要: A nitride semiconductor device comprises: a substrate body including a conductive substrate portion and a high resistance portion; a first semiconductor layer of a nitride semiconductor provided on the substrate body; a second semiconductor layer provided on the first semiconductor layer; a first main electrode provided on the second semiconductor layer; a second main electrode provided on the second semiconductor layer; and a control electrode provided on the second semiconductor layer between the first main electrode and the second main electrode. The second semiconductor layer is made of a nondoped or n-type nitride semiconductor having a wider bandgap than the first semiconductor layer. The first main electrode is provided above the conductive portion and the second main electrode is provided above the high resistance portion.

    摘要翻译: 一种氮化物半导体器件包括:衬底本体,包括导电衬底部分和高电阻部分; 设置在基板主体上的氮化物半导体的第一半导体层; 设置在所述第一半导体层上的第二半导体层; 设置在所述第二半导体层上的第一主电极; 设置在所述第二半导体层上的第二主电极; 以及设置在第一主电极和第二主电极之间的第二半导体层上的控制电极。 第二半导体层由具有比第一半导体层宽的带隙的非掺杂或n型氮化物半导体制成。 第一主电极设置在导电部分的上方,第二主电极设置在高电阻部分的上方。

    Semiconductor device
    5.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US08866151B2

    公开(公告)日:2014-10-21

    申请号:US13425246

    申请日:2012-03-20

    摘要: According to one embodiment, a semiconductor device includes a semiconductor layer of a first conductivity type, a first region of a second conductivity type selectively provided in a first major surface of the semiconductor layer, a second region of the second conductivity type selectively provided in the first major surface and connected to the first region, a first electrode provided in contact with the semiconductor layer and the first region, a second electrode provided in contact with the second region, and a third electrode electrically connected to a second major surface of the semiconductor layer opposite to the first major surface.

    摘要翻译: 根据一个实施例,半导体器件包括第一导电类型的半导体层,选择性地设置在半导体层的第一主表面中的第二导电类型的第一区域,第二导电类型的第二区域选择性地设置在 第一主表面并连接到第一区域,与半导体层和第一区域接触设置的第一电极,与第二区域接触的第二电极和与半导体的第二主表面电连接的第三电极 层与第一主表面相对。

    NITRIDE SEMICONDUCTOR DEVICE
    9.
    发明申请
    NITRIDE SEMICONDUCTOR DEVICE 有权
    氮化物半导体器件

    公开(公告)号:US20080023706A1

    公开(公告)日:2008-01-31

    申请号:US11782914

    申请日:2007-07-25

    IPC分类号: H01L29/15

    CPC分类号: H01L29/7787 H01L29/2003

    摘要: A nitride semiconductor device includes: a substrate containing Si; a channel layer provided on the substrate and made of nitride semiconductor material; a barrier layer provided on the channel layer and made of nitride semiconductor material; a first and second main electrode connected to the barrier layer; and a control electrode provided between the first main electrode and the second main electrode on the barrier layer. The substrate includes at least one layer having a resistivity of 1 kΩ/cm or more.

    摘要翻译: 氮化物半导体器件包括:含有Si的衬底; 设置在基板上并由氮化物半导体材料制成的沟道层; 阻挡层,设置在沟道层上,由氮化物半导体材料制成; 连接到所述阻挡层的第一和第二主电极; 以及设置在阻挡层上的第一主电极和第二主电极之间的控制电极。 衬底包括至少一层具有1kOmega / cm以上的电阻率的层。

    Cathode electroactive material, production method therefor, and nonaqueous secondary cell using the same
    10.
    发明授权
    Cathode electroactive material, production method therefor, and nonaqueous secondary cell using the same 失效
    阴极电活性材料及其制造方法以及使用其的非水系二次电池

    公开(公告)号:US06673491B2

    公开(公告)日:2004-01-06

    申请号:US09765349

    申请日:2001-01-22

    IPC分类号: H01M450

    摘要: The present invention provides a cathode electroactive material comprising a composite oxide comprising &bgr;-MnO2 and a spinel oxide predominantly comprising lithium, manganese, and oxygen. The present invention provides a process for producing said material, which process comprises acid treatment of a composite oxide comprising a spinel oxide predominantly comprising lithium, manganese, and oxygen, and heat treatment of the resultant composite oxide at a temperature of about 200° C. or higher and lower than about 400° C. The thus-produced oxide is employed as a cathode electroactive material in a non-aqueous secondary cell.

    摘要翻译: 本发明提供一种阴极电活性材料,其包含包含β-MnO 2和主要包含锂,锰和氧的尖晶石氧化物的复合氧化物。本发明提供了一种生产所述材料的方法,该方法包括酸处理复合氧化物,其包括 主要包含锂,锰和氧的尖晶石氧化物,并且在约200℃以上且低于约400℃的温度下对所得复合氧化物进行热处理。由此产生的氧化物用作阴极电活性 材料在非水性二次电池中。