Micro magnetic non-latching switches and methods of making same
    61.
    发明申请
    Micro magnetic non-latching switches and methods of making same 有权
    微型非锁定开关及其制造方法

    公开(公告)号:US20050083156A1

    公开(公告)日:2005-04-21

    申请号:US10684587

    申请日:2003-10-15

    申请人: Jun Shen Meichun Ruan

    发明人: Jun Shen Meichun Ruan

    IPC分类号: H01H50/00 H01H51/22

    CPC分类号: H01H50/005

    摘要: A micro magnetic switch includes a reference plane and a magnet located proximate to a supporting structure. The magnet produces a first magnetic field with uniformly spaced field lines approximately orthogonal to the reference plane, symmetrically spaced about a central axis, or non-uniformly spaced fields approximately orthogonal to the reference plane. The switch also includes a cantilever supported by the support structure. The cantilever has an axis of rotation lying in the reference plane and has magnetic material that makes the cantilever sensitive to the first magnetic field, such that the cantilever is configured to rotate about the axis of rotation between first and second states. The switch further includes a conductor located proximate to the supporting structure and the cantilever. The conductor is configured to conduct a current. The current produces a second magnetic field having a component approximately parallel to the reference plane and approximately perpendicular to the rotational axis of the cantilever, which causes the cantilever to switch between the first and second states. The switch still further includes a stopping device located proximate to the supporting structure. The stopping device is operable to stop the cantilever from rotating about the axis of symmetry beyond a point at which a longitudinal axis of the cantilever is approximately parallel to a longitudinal axis of the magnet.

    摘要翻译: 微型磁性开关包括参考平面和位于支撑结构附近的磁体。 磁体产生具有大致垂直于参考平面的均匀间隔的场线的第一磁场,围绕中心轴对称地间隔开,或者大致垂直于参考平面的非均匀间隔的场。 开关还包括由支撑结构支撑的悬臂。 悬臂具有位于参考平面中的旋转轴线并且具有使悬臂对第一磁场敏感的磁性材料,使得悬臂构造成围绕第一和第二状态之间的旋转轴线旋转。 开关还包括位于支撑结构和悬臂附近的导体。 导体被配置为导通电流。 电流产生具有大致平行于参考平面并且大致垂直于悬臂的旋转轴线的分量的第二磁场,这导致悬臂在第一和第二状态之间切换。 开关还包括位于支撑结构附近的止动装置。 止动装置可操作以阻止悬臂围绕对称轴旋转超过悬臂的纵向轴线近似平行于磁体的纵向轴线的点。

    Wafer-level tester with magnet to test latching micro-magnetic switches
    62.
    发明申请
    Wafer-level tester with magnet to test latching micro-magnetic switches 失效
    具有磁铁的晶圆级测试仪用于测试锁存微型磁性开关

    公开(公告)号:US20050012576A1

    公开(公告)日:2005-01-20

    申请号:US10823786

    申请日:2004-04-14

    申请人: Cheng Wei Jun Shen

    发明人: Cheng Wei Jun Shen

    IPC分类号: H01H11/00 H01H50/00 H01H51/22

    摘要: A method, system, and apparatus for testing one or more micro-magnetic switches on a wafer is described. A magnet is positioned adjacent to a first switch on the wafer. A probe card is positioned adjacent to the first switch. The probe card mounts a first set of probes and a second set of probes. The first set of probes interface with contact areas of a coil associated with the first switch. The second set of probes interface with conductors on the wafer associated with the cantilever of the first switch. A current source is electrically coupled to the first set of probes. The current source activates the coil of the first switch using the first set of probes to switch the cantilever from a first state to a second state. A switch state monitor is electrically coupled to the second set of probes. The switch state monitor determines whether the cantilever of the first switch is in the first state prior to the current source activating the coil of the first switch. The switch state monitor also determines whether the cantilever is in the second state after the current source activates the coil of the first switch. A stepper motor moves the wafer relative to the magnet and probe card to test further switches on the wafer. An inker marks a switch on the wafer that has been determined by the switch state monitor to be defective.

    摘要翻译: 描述了用于测试晶片上的一个或多个微型磁性开关的方法,系统和装置。 磁体定位成与晶片上的第一开关相邻。 探针卡位于第一开关附近。 探针卡安装第一组探头和第二组探头。 第一组探头与与第一开关相关联的线圈的接触区域接合。 第二组探头与与第一开关的悬臂相关联的晶片上的导体接合。 电流源电耦合到第一组探针。 电流源使用第一组探针激活第一开关的线圈,以将悬臂从第一状态切换到第二状态。 开关状态监视器电耦合到第二组探头。 开关状态监视器确定在当前源激活第一开关的线圈之前,第一开关的悬臂是否处于第一状态。 开关状态监视器还确定在电流源激活第一开关的线圈之后悬臂是否处于第二状态。 步进电机使晶片相对于磁体和探针卡移动,以测试晶片上的其它开关。 打印机将由开关状态监视器确定的晶片上的开关标记为有缺陷。

    Complementary heterojunction semiconductor device
    64.
    发明授权
    Complementary heterojunction semiconductor device 失效
    互补异质结半导体器件

    公开(公告)号:US5883404A

    公开(公告)日:1999-03-16

    申请号:US297279

    申请日:1994-08-29

    摘要: A complementary heterojunction semiconductor device (10) has a first resonant interband tunneling transistor (12) coupled to a second resonant interband tunneling transistor (14) through a common output (16). The first transistor (12) has a first gate (18) of a first semiconductor type and a drain (28) coupled to the first gate (18). The first gate (18) is also coupled to the common output (16). The second transistor (14) has a second gate (32) of a second semiconductor type and a source (42) coupled to the second gate (32). The second gate (32) is also coupled to the common output (16). The valence band (60,80,82) of the first semiconductor type has an energy level greater than the conduction band (62,64,84) of the second semiconductor type.

    摘要翻译: 互补异质结半导体器件(10)具有通过公共输出(16)耦合到第二谐振频带隧穿晶体管(14)的第一谐振频带隧穿晶体管(12)。 第一晶体管(12)具有第一半导体类型的第一栅极(18)和耦合到第一栅极(18)的漏极(28)。 第一门(18)也耦合到公共输出端(16)。 第二晶体管(14)具有第二半导体类型的第二栅极(32)和耦合到第二栅极(32)的源极(42)。 第二栅极(32)也耦合到公共输出端(16)。 第一半导体类型的价带(60,80,82)具有大于第二半导体类型的导带(62,64,84)的能级。

    Complementary heterojunction device
    65.
    发明授权
    Complementary heterojunction device 失效
    互补异质结装置

    公开(公告)号:US5349214A

    公开(公告)日:1994-09-20

    申请号:US119554

    申请日:1993-09-13

    摘要: A heterojunction device including a first semiconductive layer on a substrate, a barrier layer on the first layer, a second semiconductive layer on the barrier layer and a multi-layer cap, on the second semiconductive layer. First and second gates positioned on layers of the cap to define first and second transistors, with the cap layers being selected and etched to pin the Fermi level in a first transistor conduction channel in the second semiconductive layer such that the number of carriers in the first conduction channel are substantially less than the number of carriers in surrounding portions of the second semiconductive layer and the Fermi level in a second transistor conduction channel in the first semiconductive layer such that the number of carriers in the second conduction channel are substantially less than the number of carriers in surrounding portions of the first semiconductive layer.

    摘要翻译: 一种异质结装置,在第二半导体层上包括衬底上的第一半导体层,第一层上的阻挡层,阻挡层上的第二半导体层和多层帽。 位于盖的层上的第一和第二栅极限定第一和第二晶体管,其中盖层被选择和蚀刻以在第二半导体层中的第一晶体管导通通道中引导费米能级,使得第一和第二晶体管中的载流子数目 传导通道基本上小于第一半导体层中的第二半导体层的周围部分中的载流子数量和第二晶体管传导通道中的费米能级数,使得第二导电通道中的载流子数目基本上小于数量 在第一半导体层的周围部分的载体。

    Resonant tunneling diode with reduced valley current
    66.
    发明授权
    Resonant tunneling diode with reduced valley current 失效
    谐振隧道二极管具有减小的谷电流

    公开(公告)号:US5294809A

    公开(公告)日:1994-03-15

    申请号:US65338

    申请日:1993-05-24

    IPC分类号: H01L29/88

    摘要: A resonant tunneling diode having a quantum well sandwiched between first and second tunnel barrier layers and the quantum well and tunnel barrier layers sandwiched between an injection layer and a collector layer. The improvement includes a relatively thin layer of semiconductor material sandwiched between either the first tunnel barrier layer and the injection layer or the first tunnel barrier layer and the quantum well. The thin semiconductor layer has a valence band with an energy level lower than the valence band of the first tunnel barrier layer so as to prevent minority carriers from travelling toward the injection layer.

    摘要翻译: 一种谐振隧道二极管,其具有夹在第一和第二隧道势垒层之间的量子阱以及夹在注入层和集电极层之间的量子阱和隧道势垒层。 该改进包括夹在第一隧道势垒层和注入层之间的相对薄的半导体材料层或第一隧道势垒层和量子阱。 薄半导体层具有能级低于第一隧道势垒层的价带的价带,以防止少数载流子朝向注入层行进。

    Mobile terminal
    68.
    发明授权
    Mobile terminal 有权
    移动终端

    公开(公告)号:US09407739B2

    公开(公告)日:2016-08-02

    申请号:US14396602

    申请日:2012-06-20

    摘要: Disclosed is a mobile terminal. The mobile terminal comprises an antenna body and a metal ring. The metal ring is provided on the mobile terminal without contacting the antenna body, and the vertical projection of the metal ring on a plane where the antenna body is located intersects the antenna body. By means of the disclosure, signal receiving performance of the mobile terminal is improved, and the loss caused by head and hand is reduced to a certain extent.

    摘要翻译: 公开了一种移动终端。 移动终端包括天线体和金属环。 金属环设置在移动终端上,而不与天线体接触,并且金属环在天线体所在的平面上的垂直投影与天线体相交。 通过本公开,提高了移动终端的信号接收性能,并且由头和手造成的损失在一定程度上降低。

    Apparatus and method for media streaming
    69.
    发明授权
    Apparatus and method for media streaming 有权
    媒体流媒体和方法

    公开(公告)号:US09042441B2

    公开(公告)日:2015-05-26

    申请号:US13455801

    申请日:2012-04-25

    申请人: Venson Shaw Jun Shen

    发明人: Venson Shaw Jun Shen

    摘要: A system that incorporates teachings of the subject disclosure may include, for example, dividing a media content item into a plurality of media content segments, at each media content segment of the plurality of media content segments, applying motion estimation between at least two video frames of the media content segment to determine a content weight for the media content segment, determining a bit rate for the media content segment according to the determined content weight for the media content segment, and encoding the media content segment at the determined bit rates to generate a data stream for the media content segment, whereby a plurality of data streams for the plurality of media content segments of the media content are generated, and transmitting the plurality of data streams for the plurality of media content segments of the media content to the one or more media devices. Other embodiments are disclosed.

    摘要翻译: 结合本发明的教导的系统可以包括例如在多个媒体内容片段的每个媒体内容片段处将媒体内容项划分成多个媒体内容片段,在至少两个视频帧之间应用运动估计 确定媒体内容片段的内容权重,根据确定的媒体内容片段的内容权重确定媒体内容片段的比特率,并以确定的比特率对媒体内容片段进行编码,以生成 用于媒体内容段的数据流,由此产生用于媒体内容的多个媒体内容片段的多个数据流,并且将媒体内容的多个媒体内容片段的多个数据流发送到该媒体内容的一个 或更多媒体设备。 公开了其他实施例。