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14 条记录 (耗时 0.017 秒)

    Probe head assembly for use in testing multiple wafer die
    2.
    发明授权
    Probe head assembly for use in testing multiple wafer die 失效
    用于测试多个晶片管芯的探头头组件

    公开(公告)号：US07629804B2

    公开(公告)日：2009-12-08

    申请号：US11890222

    申请日：2007-08-03

    申请人： Vinh T. Nguyen ,  Claude A. S. Hamrick

    发明人： Vinh T. Nguyen ,  Claude A. S. Hamrick

    IPC分类号： G01R31/02

    CPC分类号： G01R1/06744 ,  G01R1/06727 ,  G01R1/07314 ,  G01R31/2886

    摘要： A wafer probe head assembly for providing signal paths between an integrated circuit (IC) tester and input/output, power and ground pads on the surfaces of ICs formed on a wafer to be tested includes an adapter board and a probe card assembly including a space transformer and a contactor carrying substrate having a substantially planar bottom surface with printed or plated circuit traces formed thereon and a plurality of contactors plated to or photo-lithographically formed on the traces and arranged to simultaneously ohmically engage the contact pads of one or more ICs on a wafer under test. The contactors may include resilient supporting structures attached to or integrated with the signal carrying circuit traces. The probe card assembly may also include one or more substrate layers with the circuit traces and vias formed on and/or within the substrate layers to facilitate connection of the tester to the contactors.

    摘要翻译： 用于在集成电路（IC）测试器和形成在待测试晶片上的IC表面上的输入/输出，功率和接地焊盘之间提供信号路径的晶片探测头组件包括适配器板和探针卡组件，其包括空间 变压器和接触器承载衬底，其具有基本上平坦的底表面，其上形成有印刷或电镀电路迹线，以及多个接触器，其电镀或光刻地形成在迹线上并被布置成同时以一个或多个IC的接触焊盘 正在测试的晶圆。 接触器可以包括附接到信号承载电路迹线或与信号承载电路迹线集成的弹性支撑结构。 探针卡组件还可以包括一个或多个衬底层，其中电路迹线和通孔形成在衬底层上和/或衬底层内，以便于将测试仪连接到接触器。

    Mesoporous FCC catalyst formulated with gibbsite and rare earth oxide
    3.
    发明授权
    Mesoporous FCC catalyst formulated with gibbsite and rare earth oxide 失效
    用三水铝矿和稀土氧化物配制的介孔FCC催化剂

    公开(公告)号：US6022471A

    公开(公告)日：2000-02-08

    申请号：US730954

    申请日：1996-10-15

    申请人： William A. Wachter ,  Vinh T. Nguyen

    发明人： William A. Wachter ,  Vinh T. Nguyen

    IPC分类号： B01J29/06 ,  B01J29/08 ,  C10G11/05

    CPC分类号： B01J29/088 ,  B01J29/061 ,  C10G11/05 ,  B01J2229/42

    摘要： A FCC catalyst having improved coke selectivity and a FCC process for converting hydrocarbon feedstocks to lower boiling products. The catalyst comprises a crystalline aluminosilicate zeolite, gibbsite, rare earth metal compound and a silica matrix prepared from at least one of a silica sol made by an ion-exchange process and an acidic silica sol prepared by mixing sodium silicate, an acid and an aluminum salt of an acid.

    摘要翻译： 具有改进的焦炭选择性的FCC催化剂和用于将烃原料转化为较低沸点产物的FCC方法。 该催化剂包括结晶硅铝酸盐沸石，三水铝矿，稀土金属化合物和由离子交换法制得的二氧化硅溶胶中的至少一种制备的二氧化硅基质和通过将硅酸钠，酸和铝混合制备的酸性硅溶胶 酸的盐

    Asynchronous motor power supply control system
    4.
    发明授权
    Asynchronous motor power supply control system 失效
    异步电动机电源控制系统

    公开(公告)号：US5644205A

    公开(公告)日：1997-07-01

    申请号：US357755

    申请日：1994-12-16

    申请人： Vinh T. Nguyen Phuoc ,  Hubert Cornilleau ,  Antonio Almeida ,  Lucien Perrin

    发明人： Vinh T. Nguyen Phuoc ,  Hubert Cornilleau ,  Antonio Almeida ,  Lucien Perrin

    IPC分类号： H02P27/04 ,  H02P5/34

    CPC分类号： H02P29/032 ,  H02P21/18 ,  H02P21/00

    摘要： An asynchronous motor is supplied with power from an AC line voltage via a variable speed drive including a rectifier bridge connected to the AC line voltage, a DC voltage intermediate circuit including a capacitor and an inverter including switches and connected to the phase windings of the motor. A system for controlling the power supply to the motor includes a device for controlled resumption of motor speed after supply of power to the motor is interrupted.

    摘要翻译： 异步电动机通过包括连接到AC线电压的整流桥的变速驱动器从交流线路电压供电，包括电容器的直流电压中间电路和包括开关并连接到电动机的相绕组的逆变器 。 用于控制对电动机的电源的系统包括用于在向电动机供电之后被中断的用于控制恢复电动机速度的装置。

    Process for Making a Multilayer Circuit Device Having Electrically Isolated Tightly Spaced Electrical Current Carrying Traces
    9.
    发明申请
    Process for Making a Multilayer Circuit Device Having Electrically Isolated Tightly Spaced Electrical Current Carrying Traces 有权
    制造具有电隔离的多层电路装置的方法紧密间隔的电流携带痕迹

    公开(公告)号：US20090158581A1

    公开(公告)日：2009-06-25

    申请号：US12263416

    申请日：2008-10-31

    申请人： Vinh T. Nguyen ,  Claude A.S. Hamrick

    发明人： Vinh T. Nguyen ,  Claude A.S. Hamrick

    IPC分类号： H05K3/10 ,  H01S4/00

    CPC分类号： H05K3/1258 ,  H05K3/108 ,  H05K3/125 ,  H05K3/243 ,  H05K3/4611 ,  H05K3/4623 ,  H05K2201/09318 ,  H05K2201/09327 ,  H05K2201/09536 ,  H05K2201/098 ,  H05K2203/013 ,  H05K2203/0568 ,  Y10T29/49002 ,  Y10T29/49124 ,  Y10T29/49126 ,  Y10T29/49144 ,  Y10T29/49155 ,  Y10T29/49165

    摘要： A process for making a multilayer circuit device having electrically isolated tightly spaced electrical current carrying traces, comprising of providing an insulative substrate having a first side coated with a layer of conductive metal intended to form a ground plane; providing a plurality of seed layer traces of a predetermined width of approximately 25 microns or less separated from each other by a predetermined distance of approximately 25 microns or less on a second side of the insulative substrate, the narrowness of such separation being essentially limited only by characteristics of the photoresist material to be deposited and developed therebetween and to withstand subsequent processing; developing ribs or barriers of photoresist forming vertical walls rising above the spaces separating the seed layer traces and defining valleys or channels thereover; depositing a desired thickness of conductive material over the seed layer traces and in the valleys or channels between the vertical walls; stripping away the resist ribs or barriers to leave conductive traces to be variously used as ground lines, signal lines and power lines; repeating the previous steps to develop a plurality of circuit boards; stacking the several circuit boards and joining them together with layers of insulative material; identifying particular ones of the traces as signal lines and other traces as power lines and/or ground lines; interconnecting at least some of the ground lines on one board to ground lines and/or ground planes on other boards by conductors extending through vias; interconnecting signal lines to signal input and output terminals; and perhaps to signal lines on other boards through vias; and interconnecting power lines to power input and output terminals, and perhaps to power lines on other boards through vias.

    摘要翻译： 一种用于制造具有电隔离的紧密间隔的电流载体轨迹的多层电路器件的方法，包括提供一个绝缘衬底，该绝缘衬底具有涂覆有用于形成接地平面的导电金属层的第一侧; 提供大约25微米或更小的预定宽度的多个种子层迹线，其在绝缘衬底的第二面上彼此隔开约25微米或更小的预定距离，这种分离的狭窄本质上仅受限于 要在其间沉积和显影的光致抗蚀剂材料的特性，并承受随后的加工; 显影光刻胶的肋或障碍物形成垂直壁，上面分开种子层迹线并在其上限定谷或沟道的空间上方; 在所述种子层迹线和所述垂直壁之间的谷或通道中沉积所需厚度的导电材料; 剥离抗蚀肋或障碍物，使导电迹线不同地用作接地线，信号线和电源线; 重复以前的步骤来开发多个电路板; 堆叠几个电路板并将其与绝缘材料层连接在一起; 将特定的迹线识别为信号线和其它迹线作为电力线和/或接地线; 将一个板上的至少一些接地线与通过通孔延伸的导体将其它板上的接地线和/或接地平面互连; 互连信号线到信号输入和输出端子; 也许通过通孔在其他董事会上发出信号; 并将电源线互连到电源输入和输出端子，并且可能通过通孔将其他电路板上的电源线连接起来。

    Device for measuring currents in a converter
    10.
    发明授权
    Device for measuring currents in a converter 失效
    用于测量转换器电流的装置

    公开(公告)号：US5877950A

    公开(公告)日：1999-03-02

    申请号：US938950

    申请日：1997-09-09

    申请人： Eric Bonsignour ,  Vinh T. Nguyen Phuoc

    发明人： Eric Bonsignour ,  Vinh T. Nguyen Phuoc

    IPC分类号： G01R19/00 ,  G01R19/165 ,  H02M7/5387 ,  H02M7/44

    CPC分类号： H02M7/53875 ,  H02M2001/0009

    摘要： This invention relates to a device for measuring currents used in a converter (1) powered by a DC power source and equipped with six switches (T1, T2, T3, T4, T5, T6) associated with diodes (D1, D2, D3, D4, D5, D6) and controlled by a control circuit (2) and a microcontroller (3), and equipped with current sensors (Su, Sv, Sw) each located between the switch and the diode associated with a lower channel, and secondly the return conductor to the DC power source supplying "direct" signals (Isu, Isv, Isw) in phase with the currents (Ia, Ib, Ic) output from the converter, characterized by the fact that it includes means (A46, A62) of calculating an "indirect" replacement signal (Iai) equal to the sum of two "direct" signals (-Isu and -Isw) and a second "indirect" replacement signal (Ici) equal to the sum of the two "direct" signals (-Isu and -Isw) and means (Cu, Cw) for switching either a "direct" signal (Isu or Isw) or an "indirect" replacement signal (Iai or Ici) so as to send to the microcontroller (3) two signals reconstructed from the two phase currents (Ia* and Ic*), each composed of either the "direct" signal (Isu or Isw) or, during the PWM steps in which the lower branch transistor is not controlled, the "indirect" replacement signal (Iai, Ici).

    摘要翻译： 本发明涉及一种用于测量由直流电源供电的转换器（1）中使用的电流的装置，该装置具有与二极管（D1，D2，D3，D3）相关联的六个开关（T1，T2，T3，T4，T5，T6） D4，D5，D6）并且由控制电路（2）和微控制器（3）控制，并且配备有各自位于开关和与下通道相关联的二极管之间的电流传感器（Su，Sv，Sw），其次 与从转换器输出的电流（Ia，Ib，Ic）同相的“直接”信号（Isu，Isv，Isw）的直流电源的返回导体，其特征在于包括装置（A46，A62） 计算等于两个“直接”信号（-Isu和-Isw）和等于两个“直接”信号之和的第二“间接”替换信号（Ici）的和的“间接”替换信号（Iai） （-Isu和-Isw）和用于切换“直接”信号（Isu或Isw）或“间接”替换信号（Iai或Ici））的装置（Cu，Cw），以便发送到麦克风 控制器（3）从两相电流（Ia *和Ic *）重建的两个信号，每个由“直接”信号（Isu或Isw）组成，或者在不控制下分支晶体管的PWM步骤期间， “间接”替换信号（Iai，Ici）。