Schottky barrier diode and integrated circuit using the same
    81.
    发明授权
    Schottky barrier diode and integrated circuit using the same 有权
    肖特基势垒二极管和集成电路使用相同

    公开(公告)号:US07375407B2

    公开(公告)日:2008-05-20

    申请号:US11271833

    申请日:2005-11-14

    IPC分类号: H01L29/47

    CPC分类号: H01L29/66143 H01L29/872

    摘要: A Schottky barrier diode includes a first semiconductor layer and a second semiconductor layer successively formed above a substrate; and a high-resistance region formed in the first semiconductor layer and the second semiconductor layer and having higher resistance than the first semiconductor layer and the second semiconductor layer. A Schottky electrode and an ohmic electrode spaced from each other are formed on the second semiconductor layer in a portion surrounded with the high-resistance region.

    摘要翻译: 肖特基势垒二极管包括依次形成在衬底上的第一半导体层和第二半导体层; 以及形成在第一半导体层和第二半导体层中并且具有比第一半导体层和第二半导体层更高的电阻的高电阻区域。 彼此间隔开的肖特基电极和欧姆电极在被高电阻区域包围的部分中形成在第二半导体层上。

    ELECTRON EMITTING DEVICE AND ELECTROMAGNETIC WAVE GENERATING DEVICE USING THE SAME
    82.
    发明申请
    ELECTRON EMITTING DEVICE AND ELECTROMAGNETIC WAVE GENERATING DEVICE USING THE SAME 有权
    电子发射装置和使用该电子发射装置的电磁波产生装置

    公开(公告)号:US20070257595A1

    公开(公告)日:2007-11-08

    申请号:US11620076

    申请日:2007-01-05

    IPC分类号: H01J99/00

    摘要: Provided is an electron emitting device which can achieve high electron emission efficiency even in the case where excitation energy is low. The device includes a carbon nanotube layer which is formed on an SiC substrate and is made up of plural carbon nanotubes vertically oriented with respect to a surface of the SiC substrate; an MgO layer which is formed on and touches the carbon nanotube layer; an ohmic electrode which is connected to the carbon nanotube layer; an electrode which is facing the MgO layer with an air-gap between the MgO layer and the electrode; and a voltage source which applies a voltage between the electrode and the ohmic electrode.

    摘要翻译: 提供了即使在激发能量低的情况下也能够实现高电子发射效率的电子发射器件。 该装置包括碳纳米管层,其形成在SiC衬底上并且由相对于SiC衬底的表面垂直取向的多个碳纳米管构成; 形成在碳纳米管层上并与其接触的MgO层; 连接到碳纳米管层的欧姆电极; 在MgO层和电极之间具有气隙的面向MgO层的电极; 以及在电极和欧姆电极之间施加电压的电压源。

    Nitride semiconductor device
    83.
    发明申请
    Nitride semiconductor device 有权
    氮化物半导体器件

    公开(公告)号:US20070170463A1

    公开(公告)日:2007-07-26

    申请号:US11647218

    申请日:2006-12-29

    IPC分类号: H01L31/00

    摘要: A nitride semiconductor device includes: a first semiconductor layer made of first nitride semiconductor; a second semiconductor layer formed on a principal surface of the first semiconductor layer and made of second nitride semiconductor having a bandgap wider than that of the first nitride semiconductor; a control layer selectively formed on, or above, an upper portion of the second semiconductor layer and made of third nitride semiconductor having a p-type conductivity; source and drain electrodes formed on the second semiconductor layer at respective sides of the control layer; a gate electrode formed on the control layer; and a fourth semiconductor layer formed on a surface of the first semiconductor layer opposite to the principal surface, having a potential barrier in a valence band with respect to the first nitride semiconductor and made of fourth nitride semiconductor containing aluminum.

    摘要翻译: 氮化物半导体器件包括:由第一氮化物半导体制成的第一半导体层; 第二半导体层,其形成在第一半导体层的主表面上并且由具有比第一氮化物半导体的带隙宽的第二氮化物半导体构成; 选择性地形成在所述第二半导体层的上部并且由上述第二半导体层的上部制成的具有p型导电性的第三氮化物半导体的控制层; 源极和漏极,形成在控制层的相应侧上的第二半导体层上; 形成在所述控制层上的栅电极; 以及形成在与所述主表面相对的所述第一半导体层的表面上的第四半导体层,所述第四半导体层相对于所述第一氮化物半导体具有价带中的势垒,并且由包含铝的第四氮化物半导体制成。

    Via hole machining for microwave monolithic integrated circuits
    84.
    发明申请
    Via hole machining for microwave monolithic integrated circuits 有权
    微波单片集成电路的通孔加工

    公开(公告)号:US20070026676A1

    公开(公告)日:2007-02-01

    申请号:US11194419

    申请日:2005-08-01

    IPC分类号: H01L21/302

    摘要: A method for forming a via in a sapphire substrate with a laser machining system that includes an ultrafast pulsed laser source. The sapphire substrate is provided. Pulses of laser light are substantially focused to a beam spot on the first surface of the sapphire substrate such that each focused pulse of laser light ablates a volume of the sapphire substrate having a depth less than the substrate thickness. The beam spot of the focused laser light pulses is scanned over a via portion of the first surface of the sapphire substrate. The sapphire substrate is moved in a direction substantially normal to the first surface to control the volume of the sapphire substrate ablated by each pulse of laser light to be substantially constant. The pulsing and scanning steps are repeated until the via is formed extending from the first surface to the second surface of the sapphire substrate.

    摘要翻译: 一种在具有包括超快脉冲激光源的激光加工系统的蓝宝石衬底中形成通孔的方法。 提供蓝宝石衬底。 激光的脉冲基本上聚焦到蓝宝石衬底的第一表面上的束斑上,使得每个聚焦的激光脉冲消除了具有小于衬底厚度的深度的蓝宝石衬底的体积。 聚焦激光脉冲的束斑在蓝宝石衬底的第一表面的通孔部分上扫描。 蓝宝石衬底沿着基本上垂直于第一表面的方向移动,以控制由每个激光脉冲消融的蓝宝石衬底的体积基本恒定。 重复脉冲和扫描步骤,直到形成从蓝宝石衬底的第一表面延伸到第二表面的通孔。

    Laser device and laser module
    86.
    发明申请
    Laser device and laser module 审中-公开
    激光设备和激光模块

    公开(公告)号:US20060203860A1

    公开(公告)日:2006-09-14

    申请号:US11352948

    申请日:2006-02-13

    IPC分类号: H01S3/10

    摘要: A laser module includes a substrate 1, a first laser element 2 placed on the substrate 1, a second laser element 3 placed with an output surface opposed to the first laser element 2 on the substrate 1, and a mirror 7 placed between the first laser element 2 and the second laser element 3. The mirror 7 has a reflective surface capable of reflecting output light from the first laser element 2 or the second laser element 3 in a predetermined direction, and is placed so as to move or rotate between a first position capable of reflecting the output light from the first laser element 2 and a second position capable of reflecting the output light from the second laser element 3. Thus, a laser module can be provided in which high precision, low cost, and miniaturization can be realized.

    摘要翻译: 激光模块包括基板1,放置在基板1上的第一激光元件2,在基板1上设置有与第一激光元件2相对的输出面的第二激光元件3,以及配置在第一激光器 元件2和第二激光元件3。 反射镜7具有反射表面,该反射表面能够沿预定方向反射来自第一激光元件2或第二激光元件3的输出光,并且能够在能够反射来自第一激光元件2或第二激光元件3的输出光的第一位置之间移动或旋转 第一激光元件2和能够反射来自第二激光元件3的输出光的第二位置。 因此,可以提供可以实现高精度,低成本和小型化的激光模块。

    Resonator and filter using the same
    90.
    发明申请
    Resonator and filter using the same 失效
    谐振器和滤波器使用相同

    公开(公告)号:US20060038636A1

    公开(公告)日:2006-02-23

    申请号:US11194460

    申请日:2005-08-02

    IPC分类号: H03H9/58

    摘要: An acoustic resonator includes: a substrate; a resonator film which is supported above the main surface of the substrate and includes a piezoelectric film and a pair of a top electrode and a bottom electrode which are formed on part of the top surface and part of the bottom surface of the piezoelectric film, respectively, to face each other via the piezoelectric film; and a support which is formed on the main surface of the substrate to support the resonator film from below. A resonance cavity is provided in part of a region between the substrate and the resonator film below at least a portion of part of the resonator film where the top electrode and the bottom electrode coincide with each other and an isolation cavity is provided in other part of said region where the support and the resonance cavity do not exist.

    摘要翻译: 声谐振器包括:基板; 一种谐振膜,其被支撑在基板的主表面上方,分别包括压电膜和一对顶电极和底电极,它们分别形成在压电膜的顶表面和底表面的一部分上 通过压电膜相互面对; 以及形成在基板的主表面上以从下方支撑谐振膜的支撑体。 谐振腔被设置在基板和谐振器膜之间的区域的一部分的下方,在谐振膜的至少一部分之上,其中顶部电极和底部电极彼此重合,并且在另一部分中设置隔离腔 所述区域不存在支撑和谐振腔。