Apparatus for measuring the electrical characteristics of a
semiconductor wafer
    2.
    发明授权
    Apparatus for measuring the electrical characteristics of a semiconductor wafer 失效
    用于测量半导体波形的电气特性的装置

    公开(公告)号:US5179333A

    公开(公告)日:1993-01-12

    申请号:US614153

    申请日:1990-11-16

    CPC分类号: G01R31/2831

    摘要: A semiconductor wafer evaluation apparatus, wherein a conductivity detector and a carrier mobility detector are independently arranged so that detections can be made under optimum conditions, respectively. A wafer carrying unit is arranged so as to carry or convey a semiconductor wafer on a carrying path between the two detectors. These components are controlled by a controller. A carrier concentration is calculated from the conductivity and the carrier mobility detected by both detectors. When a partition wall for preventing interference of an electromagnetic wave is provided between the conductivity detector and the carrier mobility detector, interference between the two detectors is further reduced.

    Light-emission gun amusement machine for home use
    3.
    发明授权
    Light-emission gun amusement machine for home use 失效
    用于家庭使用的轻型喷枪机

    公开(公告)号:US4052066A

    公开(公告)日:1977-10-04

    申请号:US659553

    申请日:1976-02-19

    申请人: Takao Ohta

    发明人: Takao Ohta

    CPC分类号: F41G3/2627 F41J5/10 F41J9/14

    摘要: A compact light-emission gun amusement machine for home use, comprising a light source, a screen, a mirror as disposed between the screen and light source, the angle of reflection of the mirror being variable to project a moving mark on said screen, a light-emission weapon and a novel hit indicating device in a novel combination. The hit indicating device includes a mirror vertical drive mechanism connected to a driving shaft driven by an electric motor and a mirror horizontal drive mechanism which is associated with the driving shaft in such relation that the former is driven only when the latter is driven in a reverse direction. Thus, as the motor is driven in a normal direction, the mark is caused to move in a composite direction made up of horizontal and vertical components to simulate a flight of a winged creature, while as the same motor is driven in reverse, the horizontal drive of the mirror is suspended to cause the mark to move in a vertically downward direction only across the screen to simulate a fall of the creature shot by the weapon.

    Light-emission gun amusement machine for home use
    10.
    发明授权
    Light-emission gun amusement machine for home use 失效
    发光枪游乐机家用

    公开(公告)号:US4229009A

    公开(公告)日:1980-10-21

    申请号:US906277

    申请日:1978-05-15

    申请人: Takao Ohta

    发明人: Takao Ohta

    摘要: A light-emission gun amusement machine for projecting a light image onto a screen and for receiving a reflected image from said screen. The device uses a light-emission gun, and has a machine housing separate from the light-emission gun and the screen. Within the housing are: a light source, a photoelectric element above the light source; and a lens system between the light source and the photoelectric element within the housing and the screen outside the housing for coaxially aligning the light rays from the light source to the screen and the light rays from the screen returning toward the photoelectric element. Furthermore, there is an electrically operative motor within the housing with a main shaft operatively connected thereto, and an electric power source connected to the light source and the motor. A power source control means actuated by the photoelectric element reverses the electrical connection between the power source and the motor when light is reflected from the screen onto the photoelectric element, thereby reversing the normal rotational direction of the motor. Finally a target producing means is contained within the housing between the light source and the photoelectric element and is operatively connected to the main shaft for producing target and hit images of the light source on the screen.

    摘要翻译: 一种用于将光图像投射到屏幕上并用于从所述屏幕接收反射图像的发光枪游戏机。 该装置使用发光枪,并且具有与发光枪和屏幕分离的机器壳体。 外壳内有:光源,光源上方的光电元件; 以及在壳体内的光源和光电元件之间的透镜系统以及外壳外部的屏幕,用于将来自光源的光线与屏幕同时对准,并且来自屏幕的光线向光电元件返回。 此外,在外壳内有电动操作的电动机,其中主轴可操作地连接到其上,以及连接到光源和电动机的电源。 当光从屏幕反射到光电元件上时,由光电元件致动的电源控制装置反转电源和电动机之间的电连接,从而反转电动机的正常旋转方向。 最后,目标产生装置被容纳在光源和光电元件之间的壳体内,并且可操作地连接到主轴,用于在屏幕上产生光源的目标和命中图像。