TECHNIQUE FOR WAFER TESTING WITH MULTIDIMENSIONAL TRANSFORM
    1.
    发明申请
    TECHNIQUE FOR WAFER TESTING WITH MULTIDIMENSIONAL TRANSFORM 审中-公开
    用于多维变换的波形测试技术

    公开(公告)号:US20130060505A1

    公开(公告)日:2013-03-07

    申请号:US13227070

    申请日:2011-09-07

    IPC分类号: G06F19/00

    CPC分类号: G01R31/2894

    摘要: Wafer sort data can be converted to binary data, whereby each integrated circuit of the wafer is assigned a value of one or zero, depending on whether test data indicates the integrated circuit complies with a specification. In addition, each integrated circuit is assigned position data to indicate its position on the wafer. A frequency transform, such as a multidimensional discrete Fourier transform (DFT), is applied to the binary wafer sort data and position data to determine a spatial frequency spectrum that indicates error patterns for the wafer. The spatial frequency spectrum can be analyzed to determine the characteristics of the wafer formation process that resulted in the errors, and the wafer formation process can be modified to reduce or eliminate the errors.

    摘要翻译: 晶圆分类数据可以转换成二进制数据,根据测试数据是否指示集成电路符合规格,晶片的每个集成电路都被分配一个或者零的值。 此外,每个集成电路被分配位置数据以指示其在晶片上的位置。 将诸如多维离散付里叶变换(DFT)的频率变换应用于二进制晶片分类数据和位置数据,以确定指示晶片的错误模式的空间频谱。 可以分析空间频谱以确定导致误差的晶片形成过程的特性,并且可以修改晶片形成过程以减少或消除误差。

    Device for automatically ascertaining capacitor breakdown voltage
    6.
    发明授权
    Device for automatically ascertaining capacitor breakdown voltage 失效
    用于自动确定电容器击穿电压的装置

    公开(公告)号:US4906939A

    公开(公告)日:1990-03-06

    申请号:US285535

    申请日:1988-12-16

    CPC分类号: G01R1/04 G01R31/016

    摘要: Test fixtures, each being adapted to receive a capacitor, are connected through a relay network to a time variable high voltage source. Predetermined relays are energized in a predetermined sequence to connect a given capacitor to the source. A high voltage signal having a predetermined waveform is applied to the capacitor associated with an energized relay. When the current through the given capacitor exceeds a threshold, the voltage value then being applied to the capacitor determines the breakdown voltage of the capacitor.

    摘要翻译: 测试夹具(每个适于接收电容器)通过中继网络连接到时间可变的高压源。 预定继电器以预定的顺序通电以将给定的电容器连接到源。 具有预定波形的高电压信号被施加到与通电继电器相关联的电容器。 当通过给定电容器的电流超过阈值时,施加到电容器的电压值决定了电容器的击穿电压。

    Field assembled gas riser
    8.
    发明授权
    Field assembled gas riser 失效
    现场组装气体提升管

    公开(公告)号:US5590914A

    公开(公告)日:1997-01-07

    申请号:US369134

    申请日:1995-01-05

    IPC分类号: F16L33/213 F16L55/00

    摘要: A field assembled gas riser includes an adapter having plural inner grooves that receive the outer surface of a plastic gas line as it is plastically deformed by axial insertion of a stiffener into the gas line. The gas line is terminated at a desired location, the adapter slid over the terminated end, and a stiffener manually inserted into the gas line. Continued axial advancement of the stiffener acts as a mandrel to plastically deform the gas line into the grooves and provide a secure, sealed arrangement.

    摘要翻译: 现场组装的气体提升器包括具有多个内部凹槽的适配器,该内部凹槽通过将加强件轴向插入气体管线而被塑性气体管线的外表面接收。 气体管线终止于期望的位置,适配器滑过终止端,并且加强板手动插入气体管线。 加强件的持续轴向前进作为心轴将气体管线塑性变形成凹槽并提供牢固且密封的布置。