Ultraviolet photoconductive cell and a method for making the same
    1.
    发明授权
    Ultraviolet photoconductive cell and a method for making the same 失效
    超紫外线光电池及其制造方法

    公开(公告)号:US3659157A

    公开(公告)日:1972-04-25

    申请号:US10242070

    申请日:1970-12-29

    CPC classification number: G03G5/08 H01L31/08 Y10T29/49082

    Abstract: An ultraviolet photoconductive cell. The cell has a stannic oxide body heated in a gaseous atmosphere having a partial oxygen pressure of more than 5 kg./cm2. Two electrodes are applied to one surface of said stannic oxide body. The cell has a high photosensitivity and also a high response speed with respect to an ultraviolet light signal.

    Abstract translation: 紫外光电池。 电池在氧气压力超过5kg / cm 2的气态气氛中加热氧化锡体。 将两个电极施加到所述氧化锡体的一个表面。 细胞相对于紫外线信号具有高的光敏性和高响应速度。

    Thin film non-rectifying negative resistance device
    2.
    发明授权
    Thin film non-rectifying negative resistance device 失效
    薄膜非整修负极电阻器件

    公开(公告)号:US3688160A

    公开(公告)日:1972-08-29

    申请号:US3688160D

    申请日:1971-03-25

    CPC classification number: H01L47/00

    Abstract: A non-rectifying negative resistance device. The device has a glass layer less than 100 microns in thickness with a composition consisting essentially of, by analysis, tellurium, vanadium, and oxygen. Electrodes are applied to opposite surfaces of said glass layer. The glass layer is electrically activated by applying thereto an electric field of more than 5 X 104 volt/cm through said electrodes. Such a device has a non-rectifying currentvoltage characteristic which includes negative resistance regions, and it responds very rapidly to an applied electrical signal.

    Abstract translation: 非整流负电阻器件。 该装置的玻璃层厚度小于100微米,组成基本上由碲,钒和氧分析组成。 电极施加到所述玻璃层的相对表面。 通过向所述电极施加大于5×10伏特/ cm 2的电场来激活玻璃层。 这种器件具有非整流电流 - 电压特性,其包括负电阻区域,并且其对所施加的电信号的响应非常快。

    Negative resistance device
    3.
    发明授权
    Negative resistance device 失效
    负极电阻装置

    公开(公告)号:US3675088A

    公开(公告)日:1972-07-04

    申请号:US3675088D

    申请日:1970-07-28

    CPC classification number: H01L47/00

    Abstract: A non-rectifying monostable negative resistance device. The device has a glass layer 0.002 to 0.2 mm thick with a composition consisting essentially of, by analysis, tellurium, iron, and oxygen. Two electrodes are applied to opposite surfaces of said glass layer. The atomic ratio of tellurium to iron ranges from 85:15 to 64:36. Such a device has a monostable current-voltage characteristic which includes negative resistance regions and which is very stable.

    Abstract translation: 非整流单稳态负电阻器件。 该装置具有0.002至0.2mm厚的玻璃层,其组成主要由分析碲,铁和氧组成。 将两个电极施加到所述玻璃层的相对表面。 碲对铁的原子比为85:15至64:36。 这种器件具有包括负电阻区域并且非常稳定的单稳态电流 - 电压特性。

    4.
    发明专利
    未知

    公开(公告)号:DE69421002T2

    公开(公告)日:2000-05-25

    申请号:DE69421002

    申请日:1994-05-27

    Abstract: Protrusions made of an electrically conductive material such as a metal or ceramic are formed around a node point or a node line of vibrations of a piezoelectric plate on two principal planes thereof with a spraying process. The piezoelectric plate is held at the protrusions with leaf springs on the two principal planes. Thus, the protrusions of a small surface area are formed without deteriorating the piezoelectric plate. The piezoelectric plate can be held stably without deteriorating vibration characteristics. An alternating voltage is applied to electrodes of the piezoelectric plate through the electrically conductive protrusions. Because a spraying process is used, the protrusions can be formed thickly in a small area precisely and it held surely and reliably with good mechanical strength of the protrusions.

    5.
    发明专利
    未知

    公开(公告)号:DE69321660T2

    公开(公告)日:1999-06-17

    申请号:DE69321660

    申请日:1993-06-07

    Abstract: The present invention relates to a diffusion joining method of Cu or Cu alloy surface and a conductive paste used therefor, especially applied to a method for preparing a multilayer printed wiring board. The present invention is characterized by providing the contacting surfaces with a layer selected from the group comprising a noble metal thin layer, a metal oxide remover layer and a conductive paste layer mainly consisting of a Cu or Cu alloy particles and the metal oxide remover; and pressing the contacting metal surfaces at a temperature higher than 170 DEG C more or less whereat the Cu atom at interface of the Cu or Cu alloy surfaces to be joined becomes to be able to diffuse, to give a joined metal body.

    6.
    发明专利
    未知

    公开(公告)号:DE69421002D1

    公开(公告)日:1999-11-11

    申请号:DE69421002

    申请日:1994-05-27

    Abstract: Protrusions made of an electrically conductive material such as a metal or ceramic are formed around a node point or a node line of vibrations of a piezoelectric plate on two principal planes thereof with a spraying process. The piezoelectric plate is held at the protrusions with leaf springs on the two principal planes. Thus, the protrusions of a small surface area are formed without deteriorating the piezoelectric plate. The piezoelectric plate can be held stably without deteriorating vibration characteristics. An alternating voltage is applied to electrodes of the piezoelectric plate through the electrically conductive protrusions. Because a spraying process is used, the protrusions can be formed thickly in a small area precisely and it held surely and reliably with good mechanical strength of the protrusions.

    7.
    发明专利
    未知

    公开(公告)号:FR2401551A1

    公开(公告)日:1979-03-23

    申请号:FR7816625

    申请日:1978-06-02

    Abstract: To obtain low insertion loss and low TTE level, a first central transducer, a second transducer and a third transducer are disposed on one surface of a piezoelectric substrate in such a manner that the second and the third transducers are in the direction of propagation (X-direction) of surface acoustic waves launched by the first transducer and the distance between center lines of the first and the second transducers and also the distance between the center lines of the first and the third transducers vary along the Y-direction perpendicular to the X-direction.

    AUTOMATIC CONTROL DEVICE FOR CAR LIGHTING

    公开(公告)号:CA1027998A

    公开(公告)日:1978-03-14

    申请号:CA198488

    申请日:1974-04-30

    Abstract: 1457659 Photo-electric control of vehicle lighting MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 26 April 1974 [19 Oct 1973] 18466/74 Heading G1A Vehicle lights are automatically switched on when the level of natural ambient light falls below a given value, the effects of artificial lighting (e.g. street or vehicle lights) being eliminated by using a photo-detector sensitive only to the near ultraviolet band 3200-3600A. The detector may be at the front or rear of the vehicle, and may be set to receive ambient light from the same road area as can be illuminated by the lights it controls. The detector is preferably a stannic oxide photoconductor whose output is supplied to a threshold device; the latter may have several thresholds so that different lights come on for different ambient levels. A graph showing the response of the detector and the relative emissions of the sun and artificial sources is given, Fig. 2 (not shown), the above mentioned ultraviolet range being one in which the sun emits but the other sources do not, in this range the ultraviolet is related to the sun's visible emission.

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