Cathode-ray tube and semiconductor device for use in such a cathode-ray
tube
    3.
    发明授权
    Cathode-ray tube and semiconductor device for use in such a cathode-ray tube 失效
    用于这种阴极射线管的阴极射线管和半导体器件

    公开(公告)号:US4574216A

    公开(公告)日:1986-03-04

    申请号:US713584

    申请日:1985-03-19

    摘要: A semiconductor cathode is provided with deflection electrodes, with which a dipole field can be generated. As a result of this, electrons released at the surface of the semiconductor cathode leave the surface at a certain angle. For use inter alia in camera tubes, display tubes, such an inclined beam can be aligned without any problems. Positive ions which are released inter alia from residual gases and are accelerated in the direction of the cathode impinge on the cathode at an acute angle. As a result of this, the active part of the cathode is substantially not attacked by said positive ions, so that degradation is prevented.

    摘要翻译: 半导体阴极设置有偏转电极,可以产生偶极场。 结果,在半导体阴极表面放出的电子离开表面一定角度。 为了特别用于照相机管,显示管,这样的倾斜光束可以没有任何问题地对准。 由残留气体释放并在阴极方向加速的正离子以锐角撞击在阴极上。 结果,阴极的活性部分基本上不被所述正离子侵蚀,从而防止了劣化。

    Method of semiconductor device for generating electron beams
    8.
    发明授权
    Method of semiconductor device for generating electron beams 失效
    用于产生电子束的半导体器件的方法

    公开(公告)号:US4370797A

    公开(公告)日:1983-02-01

    申请号:US268209

    申请日:1981-05-29

    CPC分类号: H01J9/022 H01J1/308

    摘要: The invention relates to a semiconductor cathode and a camera tube and a display tube, respectively, having such a cathode, based on avalanche breakdown in a p-n junction extending parallel to the surface of the semiconductor body. The released electrons obtain extra energy by means of an accelerating electrode provided on the device. The resulting efficiency increase makes the manufacture of such cathodes in planar silicon technology practical. Since the depletion zone of the p-n junction upon avalanche breakdown does not extend to the surface, the released electrons show a sharp, narrow energy distribution. This makes such cathodes particularly suitable for camera tubes. In addition they find application, for example, in display tubes and flat displays.

    摘要翻译: 本发明涉及分别具有这样的阴极的半导体阴极和相机管和显示管,其基于平行于半导体本体的表面延伸的p-n结中的雪崩击穿。 释放的电子通过设置在器件上的加速电极获得额外的能量。 所产生的效率提高使得平面硅技术中的这种阴极的制造成为可能。 由于在雪崩击穿时p-n结的耗尽区不延伸到表面,所释放的电子显示出尖锐的能量分布。 这使得这种阴极特别适用于照相机管。 此外,他们还可以应用于显示管和平板显示器。

    Semiconductor device having a cold cathode
    10.
    发明授权
    Semiconductor device having a cold cathode 失效
    具有冷阴极的半导体器件

    公开(公告)号:US4766340A

    公开(公告)日:1988-08-23

    申请号:US21564

    申请日:1987-03-02

    CPC分类号: H01J1/308

    摘要: In a semiconductor cathode, the electron-emitting part of a pn junction is provided in the tip of a projecting portion of the semiconductor surface which is situated within an opening in an insulating layer on which an acceleration electrode is disposed. Due to the increased electric field near the tip, a reduction of the work function (Schottky effect) is obtained. As a result, cathodes can be realized in which a material reducing the work function, such as caesium, may be either dispensed with or replaced, if required, by another material, which causes lower work function, but is less volatile. The field strength remains so low that no field emission occurs and serarate cathodes can be driven individually, which is favorable for applications in electron microscopy and electron lithography.

    摘要翻译: 在半导体阴极中,pn结的电子发射部分设置在半导体表面的突出部分的尖端中,半导体表面的突出部分位于设置有加速电极的绝缘层中的开口内。 由于尖端附近的电场增加,可以获得功函数(肖特基效应)的降低。 结果,可以实现阴极,其中如果需要,可以通过另一种材料来省去或替换诸如铯的功能降低功函数,这导致较低的功函数,但是较不易挥发。 场强保持如此之低,不会发生场发射,可以单独驱动平均阴极,这有利于电子显微镜和电子光刻中的应用。