利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

57 条记录 (耗时 0.012 秒)

    Room temperature cryogenic test interface
    54.
    发明授权
    Room temperature cryogenic test interface 失效
    室温低温试验界面

    公开(公告)号：US4498046A

    公开(公告)日：1985-02-05

    申请号：US434770

    申请日：1982-10-18

    申请人： Sadeg M. Faris ,  Paul A. Moskowitz ,  Arthur Davidson ,  George A. Sai-Halasz

    发明人： Sadeg M. Faris ,  Paul A. Moskowitz ,  Arthur Davidson ,  George A. Sai-Halasz

    IPC分类号： H01L39/24 ,  F17C13/00 ,  G01R13/34 ,  G01R31/28 ,  G01R5/00 ,  F25B19/00

    CPC分类号： G01R31/2822 ,  F17C13/00 ,  F17C2203/0391 ,  F17C2203/0629 ,  F17C2223/0161 ,  F17C2250/0631 ,  F17C2270/0168 ,  F17C2270/0509 ,  F17C2270/0518 ,  Y10S505/843

    摘要： This interface permits the testing of high speed semiconductor devices (room-temperature chips) by a Josephson junction sampling device (cryogenic chip) without intolerable loss of resolution. The interface comprises a quartz pass-through plug which includes a planar transmission line interconnecting a first chip station, where the cryogenic chip is mounted, and a second chip station, where the semiconductor chip to be tested is temporarily mounted. The pass-through plug has a cemented long half-cylindrical portion and short half-cylindrical portion. The long portion carries the planar transmission line, the ends of which form the first and second chip mounting stations. The short portion completes the cylinder with the long portion for part of its length, where a seal can be achieved, but does not extend over the chip mounting stations. Sealing is by epoxy cement. The pass-through plug is sealed in place in a flange mounted to the chamber wall. The first chip station, with the cryogenic chip attached, extends into the liquid helium reservoir. The second chip station is in the room temperature environment required for semiconductor operation. Proper semiconductor operating temperature is achieved by a heater wire and control thermocouple in the vicinity of each other and the second chip mounting station. Thermal isolation is maintained by vacuum and seals. Connections for power and control, for test result signals, for temperature control and heating, and for vacuum complete the test apparatus.

    摘要翻译： 该接口允许通过约瑟夫逊结采样装置（低温芯片）测试高速半导体器件（室温芯片），而不会导致分辨率的损失。 接口包括石英直通插头，其包括互连第一芯片站的平面传输线，其中安装有低温芯片，以及第二芯片站，其中临时安装待测试的半导体芯片。 直通塞具有胶合的长半圆柱形部分和短的半圆柱形部分。 长部分承载平面传输线，其端部形成第一和第二芯片安装站。 短部分在其长度的一部分长部分处完成圆筒，其中可以实现密封，但不延伸在芯片安装台上。 密封是由环氧树脂水泥。 直通塞密封在安装在室壁上的凸缘中的适当位置。 附有低温芯片的第一个芯片站延伸到液氦储存器中。 第二个芯片站处于半导体操作所需的室温环境中。 适当的半导体工作温度是通过加热线和彼此附近的第二芯片安装站的控制热电偶实现的。 通过真空和密封保持热隔离。 用于电力和控制的连接，用于测试结果信号，用于温度控制和加热，以及真空完成测试设备。

    Determining the state of the surface of a moving body using eddy currents to obtain first and second runout profiles of the body
    55.
    发明授权
    Determining the state of the surface of a moving body using eddy currents to obtain first and second runout profiles of the body 失效
    使用涡流来确定移动体的表面的状态，以获得身体的第一和第二跳动曲线

    公开(公告)号：US4460869A

    公开(公告)日：1984-07-17

    申请号：US351494

    申请日：1982-02-23

    申请人： Werner Buser ,  Pierre Keller ,  Walter Munch

    发明人： Werner Buser ,  Pierre Keller ,  Walter Munch

    IPC分类号： G01K7/36 ,  G01K13/04 ,  G01R33/12 ,  G01N27/72

    CPC分类号： G01K7/36 ,  G01K13/04 ,  Y10S505/843

    摘要： A method and apparatus for monitoring the state of the surface of a moving body wherein a four-terminal eddy-current coil circuit is connected in a feedback loop of an RC resonator. The eddy-current coil circuit is placed in proximity to the monitored surface of the moving body and connected in the feedback loop of an RC resonator such that a change in the state of the surface of the moving body results in a change in the conductivity thereof, which conductivity change produces a phase displacement changing the output frequency of the RC resonator. During operation, a first data set is obtained from the coil circuit and RC resonator presenting a first runout profile of the body when the monitored state is in an initial state. The first data set is stored in a memory, and a subsequent profile is derived to obtain a second data set indicative of the operational state of the surface of the moving body. The second data set is also stored in the memory and then the first data set is subtracted from the second data set to obtain an effective or true profile of the surface of the body at the subsequent operational time.

    摘要翻译： 一种用于监测移动体的表面状态的方法和装置，其中四端涡流线圈电路连接在RC谐振器的反馈回路中。 涡流线圈电路放置在移动体的被监测表面附近，并连接在RC谐振器的反馈回路中，使得移动体的表面状态的变化导致其导电性的变化 ，该电导率变化产生改变RC谐振器的输出频率的相位位移。 在操作期间，当监视状态处于初始状态时，从线圈电路和RC谐振器获得第一数据组，其呈现身体的第一跳动曲线。 第一数据集被存储在存储器中，导出随后的轮廓以获得指示运动物体的表面的操作状态的第二数据集。 第二数据集也存储在存储器中，然后从第二数据集中减去第一数据集，以在后续操作时间获得身体表面的有效或真实轮廓。

    Apparatus for measuring pulsed signals using josephson tunneling devices
    56.
    发明授权
    Apparatus for measuring pulsed signals using josephson tunneling devices 失效
    用于测量使用JOSEPHSON隧道装置的脉冲信号的装置

    公开(公告)号：US3764905A

    公开(公告)日：1973-10-09

    申请号：US3764905D

    申请日：1972-06-30

    申请人： IBM

    发明人： ZAPPE H

    IPC分类号： G01R29/08 ,  G01R13/34 ,  G01R15/18 ,  G01R19/00 ,  G01R33/035 ,  G11C11/44 ,  H03K19/195 ,  G01R27/28

    CPC分类号： G01R13/342 ,  G01R15/18 ,  G01R33/0354 ,  H03K19/1952 ,  Y10S505/843

    摘要： A device and method for measurement of ultra fast waveforms with increased accuracy and storage capability. A superconducting loop contains at least one Josephson tunneling device and is located adjacent to the signal line along which travels the waveform to be measured. Magnetic flux from the waveform intercepts the loop in an amount which is dependent upon the amplitude of the waveform at any instance in time. Control means is provided to switch the Josephson tunneling device to its zero voltage state at the time the waveform is to be sampled. This traps the magnetic flux due to the waveform and the flux will remain stored in a loop as long as the Josephson tunneling device remains in its zero voltage state. A test Josephson tunnel device located adjacent to the superconducting loop can be used to detect the amount of flux trapped in the loop. Non-repetitive pulses can be sampled and the device has a possible resolution of 5 picoseconds. The bandwidth of the non-repetitive signal pulses can be 100 gHz.

    摘要翻译： 一种用于测量超快速波形的设备和方法，具有更高的精度和存储能力。 超导环路包含至少一个约瑟夫逊隧道装置，并且位于与要测量的波形相交的信号线附近。 来自波形的磁通量以任何时间上的波形幅度取决于波形的截距。 提供控制装置以在波形被采样时将约瑟夫逊隧道装置切换到其零电压状态。 只要约瑟夫逊隧道装置保持在零电压状态，这个陷波由于波形而磁通将保持存储在环路中。 位于邻近超导环路的测试约瑟夫森隧道装置可用于检测回路中捕集的通量。 可以对非重复脉冲进行采样，并且器件具有5皮秒的可能分辨率。 非重复信号脉冲的带宽可以为100 gHz。