Apparatus for measuring the life time of minority carriers of a
semiconductor wafer
    11.
    发明授权
    Apparatus for measuring the life time of minority carriers of a semiconductor wafer 失效
    用于测量半导体晶片的少数载流子寿命的装置

    公开(公告)号:US5438276A

    公开(公告)日:1995-08-01

    申请号:US59764

    申请日:1993-05-12

    CPC分类号: G01R31/2656

    摘要: An apparatus for measuring the life time of minority carriers includes a light source for irradiating a first region of a semiconductor wafer, a microwave generator for generating microwaves, a transmission line for transmitting a first part of the generated mark raised to the region of the semiconductor wafer that is radiated by the excitation light and a second portion of the generated microwave to a region of the semiconductor wafer that is not radiated by the excitation light. The intensity of the microwave signals reflected from the semiconductor wafer are detected and the life time of the minority carriers is calculated based upon the detected intensities.

    摘要翻译: 用于测量少数载流子寿命的装置包括用于照射半导体晶片的第一区域的光源,用于产生微波的微波发生器,用于将生成的标记的第一部分发送到半导体区域的传输线 由激发光辐射的晶片和产生的微波的第二部分到不被激发光照射的半导体晶片的区域。 检测从半导体晶片反射的微波信号的强度,并且基于检测到的强度来计算少数载流子的寿命。

    Charged particle accelerator
    12.
    发明授权
    Charged particle accelerator 失效
    带电粒子加速器

    公开(公告)号:US5280252A

    公开(公告)日:1994-01-18

    申请号:US766410

    申请日:1991-09-27

    IPC分类号: H05H7/18 H05H9/00 H05H7/00

    CPC分类号: H05H7/18 H05H9/00

    摘要: A charged particle accelerator capable of accelerating arbitrarily charged particles to an arbitrary energy level and resonating at a low frequency suitable for accelerating heavy ions, including quadruple electrodes which are supplied with high frequency power and disposed in the direction of the center axis of a cylinder-shaped container and a resonant circuit having a capacitor and an inductor for supplying a voltage to the quadruple electrodes. The capacitor is composed of a plurality of metallic plates provided along the center axis at specified intervals in the vicinity of the quadruple electrodes, and a plurality of conductive supports supporting the metallic plates which are directly connected to the container together with the supports and the container form the inductor. Since the metallic plates and the quadruple electrodes are electrically directly connected to each other, an arbitrary resonant frequency can be obtained by adjusting the intervals between the plurality of metallic plates with a position adjusting mechanism. In one embodiment, flat electrodes are protruded from opposite sides of the inner wall of the container and are disposed in parallel to the center axis and close to each other to constitute a capacitor, which makes it possible to have a resonant frequency in a low frequency range. To obtain a large Q value, the surface current resistance is lowered by covering the inner wall of the container and the surfaces of the flat plate electrodes with a superconductive material.

    摘要翻译: 一种带电粒子加速器,其能够将任意带电粒子加速到任意能级,并以适合于加速重离子的低频谐振,包括提供高频功率的四极电极,并且设置在圆柱形电极的中心轴线方向, 以及具有用于向四极电极提供电压的电容器和电感器的谐振电路。 电容器由在四极电极附近以规定间隔沿着中心轴设置的多个金属板构成,并且支撑金属板的多个导电支撑件与支撑件和容器一起直接连接到容器 形成电感器。 由于金属板和四极电极彼此电连接,因此可以通过利用位置调节机构调节多个金属板之间的间隔来获得任意共振频率。 在一个实施例中,扁平电极从容器的内壁的相对侧突出并且平行于中心轴设置并且彼此靠近以构成电容器,这使得可以具有低频率的谐振频率 范围。 为了获得大的Q值,通过用超导材料覆盖容器的内壁和平板电极的表面来降低表面电流电阻。

    Front structure of all terrain vehicle
    13.
    发明授权
    Front structure of all terrain vehicle 有权
    所有地形车辆的前部结构

    公开(公告)号:US07347296B2

    公开(公告)日:2008-03-25

    申请号:US11175190

    申请日:2005-07-07

    IPC分类号: B60K11/08

    摘要: An all terrain vehicle for smoothly introducing an exhaust air from a radiator rearward and improving cooling performance for cooling respective members of the vehicle is provided with a front structure, in which a cooling fan is provided on a rear surface of the radiator so that a central portion of the cooling fan is offset from a center of the radiator toward a side opposite to a side on which the belt transmission is arranged, an exhaust pipe connected to a front portion of the cylinder assembly is provided to extend toward the side on which the belt transmission is arranged so that the exhaust pipe extends downward at a portion above the belt transmission, and the inlet duct is provided on the side on which the exhaust pipe is provided so as to vertically extend along the vehicle body frame provided vertically through a portion below the exhaust pipe.

    摘要翻译: 一种用于从后方平稳地将散热器引入散热器的全地形车辆,并且改善了用于冷却车辆各部件的冷却性能的前部结构,其中在散热器的后表面上设置有冷却风扇, 冷却风扇的一部分偏离散热器的中心朝向与传动带配置的一侧相反的一侧,连接到气缸组件的前部的排气管设置成朝向 带式传送装置被布置成使得排气管在带传动装置上方的部分向下延伸,并且入口管道设置在其上设置有排气管的一侧,以沿垂直方向设置的车身框架垂直延伸穿过部分 排气管下方。

    Distance measurement method making use of electromagnetic wave and
system therefor
    15.
    发明授权
    Distance measurement method making use of electromagnetic wave and system therefor 失效
    使用电磁波的距离测量方法及其系统

    公开(公告)号:US4744040A

    公开(公告)日:1988-05-10

    申请号:US943874

    申请日:1986-12-19

    CPC分类号: G01F23/284 G01S13/34

    摘要: A method an apparatus for measuring the distance to a target wherein FM wave is transmitted to the target and its reflected wave is received. A beat wave is then obtained using the thus-received wave and the FM wave. A sine wave is mixed with the beat wave and a first sideband wave of a plurality of sideband waves of the resultant mixed wave is obtained. Another sine wave is mixed with the sideband wave. Then, a second sideband wave of the thus-obtained mixed wave is separated and detected. In the above manner, phase modulation is applied directly to the above-described beat wave. Information pertaining to distance can then be obtained from the number of peaks of the thus-modulated beat wave. A microwave profile meter suitable for use in the determination of the surface profile of a burden in a blast furnace is also disclosed.

    摘要翻译: 一种用于测量与目标的距离的装置的方法,其中FM波被发送到目标并且其反射波被接收。 然后使用这样接收的波和FM波获得拍波。 将正弦波与拍波混合,得到所得到的混合波的多个边带波的第一边带波。 另一个正弦波与边带波混合。 然后,分离并检测由此获得的混合波的第二边带波。 以上述方式,相位调制被直接应用于上述的拍波。 然后可以从如此调制的搏动波的峰值的数量获得与距离有关的信息。 还公开了一种适用于确定高炉中的负荷的表面轮廓的微波分布仪。