Direct stacked and flip chip power semiconductor device structures
    2.
    发明授权
    Direct stacked and flip chip power semiconductor device structures 失效
    直接堆叠和倒装芯片功率半导体器件结构

    公开(公告)号:US5532512A

    公开(公告)日:1996-07-02

    申请号:US316996

    申请日:1994-10-03

    Abstract: Power semiconductor device structures and assemblies with improved heat dissipation characteristics and low impedance interconnections include a thermally-conductive dielectric layer, such as diamondlike carbon (DLC) overlying at least portions of the active major surface of a semiconductor chip, with vias formed in the dielectric layer in alignment with contact pads on the active major surface. A patterned metallization layer is formed over the thermally-conductive dielectric layer, with portions of the metallization layer extending through the vias into electrical contact with the chip contact pads. A metal structure is electrically and thermally coupled to selected areas of the patterned metallization, such as by solder bonding or by a eutectic bonding process. In different embodiments, the metal structure may comprise a metal conductor bonded to the opposite major surface of another power semiconductor device structure, a heat-dissipating device-mounting structure, or simply a low-impedance lead.

    Abstract translation: 具有改善的散热特性和低阻抗互连的功率半导体器件结构和组件包括导热介电层,例如覆盖在半导体芯片的有源主表面的至少一部分上的类金刚石碳(DLC),以及在电介质中形成的通孔 层与主动主表面上的接触垫对准。 图案化的金属化层形成在导热电介质层之上,金属化层的部分延伸穿过通孔与芯片接触焊盘电接触。 金属结构电气和热耦合到图案化金属化的选定区域,例如通过焊接或通过共晶粘合工艺。 在不同的实施例中,金属结构可以包括结合到另一功率半导体器件结构的相对主表面的金属导体,散热器件安装结构或简单的低阻抗引线。

    WIRELESS DATA ACQUISITION NETWORK AND OPERATING METHODS
    3.
    发明申请
    WIRELESS DATA ACQUISITION NETWORK AND OPERATING METHODS 有权
    无线数据采集网络和操作方法

    公开(公告)号:US20090261968A1

    公开(公告)日:2009-10-22

    申请号:US12107735

    申请日:2008-04-22

    CPC classification number: G01V1/223

    Abstract: A wireless network is provided, that may comprise wireless sensor units organized in chains of wireless sensor units. Each wireless sensor unit may comprise plural sensors and at least a wireless transceiver connected to communicate by wires or wirelessly with the plural sensors. Each chain of wireless sensor units may include a terminal wireless sensor unit and intermediate wireless sensor units, each intermediate wireless sensor unit being configured to relay data along the chain of intermediate wireless sensor units towards the terminal wireless sensor unit. The terminal wireless sensor unit in each chain of wireless sensor units is adapted to communicate wirelessly with at least one backhaul unit of plural backhaul units; and the backhaul units are adapted to communicate with a central computer.

    Abstract translation: 提供无线网络,其可以包括以无线传感器单元链为单位组织的无线传感器单元。 每个无线传感器单元可以包括多个传感器和至少一个无线收发器,该无线收发器被连接以通过电线或与多个传感器无线地通信。 每个无线传感器单元链可以包括终端无线传感器单元和中间无线传感器单元,每个中间无线传感器单元被配置为沿着中间无线传感器单元链向数据终端无线传感器单元中继数据。 无线传感器单元链中的终端无线传感器单元适于与多个回程单元的至少一个回程单元进行无线通信; 并且回程单元适于与中央计算机通信。

    Accurate placement and retention of an amalgam in a electrodeless
fluorescent lamp
    4.
    发明授权
    Accurate placement and retention of an amalgam in a electrodeless fluorescent lamp 失效
    将汞合金准确放置和保留在无电极荧光灯中

    公开(公告)号:US5629584A

    公开(公告)日:1997-05-13

    申请号:US448080

    申请日:1995-05-23

    CPC classification number: H01J7/22 H01J61/28 H01J65/048 H01J9/245 H01J9/395

    Abstract: An amalgam is accurately placed and retained in an optimized location in the exhaust tube of an electrodeless SEF lamp for operation at a mercury vapor pressure in the optimum range from approximately four to seven millitorr by forming a dimple in the exhaust tube and using a dose locating member to locate and retain the amalgam on the side of the dimple away from the core of the lamp after filling the lamp. As an alternative, two dimples may be situated on opposite sides of the exhaust tube for performing the same function as, but with less depth than, the single dimple. In another alternative embodiment, first and second dimple configurations are formed in the exhaust tube after tip-off thereof, each dimple configuration including either one or two dimples. The second dimple configuration is spaced apart from the first dimple configuration along the length of the exhaust tube. In this way, the amalgam may be initially positioned farther from the tip-off region, thereby avoiding problems during tipping off of the exhaust tube, such as loss of mercury from the lamp, or quenching of the tip which could cause stress cracks. After tip-off, the second dimple configuration allows for placement of the amalgam closer to, or preferably in contact with, the tip of the sealed exhaust tube, i.e., the coolest location in the exhaust tube.

    Abstract translation: 汞齐被精确地放置并保持在无电极SEF灯的排气管中的优化位置,以在约4至7毫托的最佳范围内的汞蒸汽压力下操作,通过在排气管中形成凹坑并使用剂量定位 成员在填充灯泡之后,将灯泡的灯头侧面的汞齐定位并保持在远离灯芯的位置。 作为替代方案,两个凹坑可以位于排气管的相对侧上,用于执行与单个凹坑相同的功能,但具有较小的深度。 在另一替代实施例中,第一和第二凹坑配置在其脱开之后形成在排气管中,每个凹坑配置包括一个或两个凹坑。 第二凹坑配置沿着排气管的长度与第一凹坑配置间隔开。 以这种方式,汞齐可以最初位于距脱落区域更远的地方,从而避免了在排出管的脱落过程中的问题,例如灯的汞损失,或尖端的淬火,这可能引起应力裂纹。 在脱落之后,第二凹坑配置允许将汞合金放置在密封排气管的末端(即排气管中的最冷的位置)上,或优选地与其接触。

    Electronically controllable capacitors using power MOSFET's
    5.
    发明授权
    Electronically controllable capacitors using power MOSFET's 失效
    使用功率MOSFET的电子可控电容器

    公开(公告)号:US5600187A

    公开(公告)日:1997-02-04

    申请号:US265889

    申请日:1994-06-27

    CPC classification number: H05B41/2806 H01G7/00 Y02B20/22

    Abstract: An electrically controllable variable capacitor includes the interelectrode capacitance of at least one power MOSFET, a capacitance connected in series with the MOSFET and having one terminal connected to the drain or source thereof (the series capacitance), and bias control circuitry for controlling the bias voltage applied to the MOSFET. The voltage rating of the MOSFET, the peak amplitude of the applied ac signal, and the value of the series capacitance determine the range of dc bias voltages over which the MOSFET can be operated, and hence the capacitance range of the variable capacitor. Such a variable capacitance is useful as a tuning capacitor in an electrodeless HID lamp ballast.

    Abstract translation: 电可控可变电容器包括至少一个功率MOSFET的电极间电容,与MOSFET串联连接的电容,并且具有连接到其漏极或源极的一个端子(串联电容)以及用于控制偏置电压的偏置控制电路 应用于MOSFET。 MOSFET的额定电压,施加的交流信号的峰值幅度和串联电容的值决定了MOSFET可以工作的直流偏置电压的范围,因此决定了可变电容器的电容范围。 这种可变电容可用作无电极HID灯镇流器中的调谐电容器。

    Virtual fixture for reducing electromagnetic interaction between an
electrodeless lamp and a metallic fixture
    6.
    发明授权
    Virtual fixture for reducing electromagnetic interaction between an electrodeless lamp and a metallic fixture 失效
    用于减少无电极灯和金属灯具之间的电磁相互作用的虚拟灯具

    公开(公告)号:US5461284A

    公开(公告)日:1995-10-24

    申请号:US220862

    申请日:1994-03-31

    CPC classification number: H01J61/35 H01J61/04 H01J61/30 H01J65/048 H01J61/56

    Abstract: An electrodeless lamp (e.g., an electrodeless fluorescent lamp) includes a dielectric housing shaped to conform to a portion of a lamp envelope, which housed portion is opposite to a portion through which light is emitted. The dielectric housing includes a continuous conductor, i.e., a shorted turn, situated between the dielectric housing and the lamp envelope which conforms to at least a portion of the dielectric housing. The configuration of the shorted turn, in terms of the location and amount of surface area occupied thereby, is optimized to minimize interaction between the excitation coil and any metallic fixture and to avoid interfering with lamp starting and light output.

    Abstract translation: 无电极灯(例如,无电极荧光灯)包括形成为符合灯壳的一部分的电介质壳体,该容纳部分与发射光的部分相对。 绝缘壳体包括位于电介质外壳和灯壳之间的连续导体,即短路匝,其符合至少一部分电介质外壳。 短路匝的配置,就其所占据的表面面积的位置和数量而言,进行了优化,以使励磁线圈与任何金属夹具之间的相互作用最小化,并避免干扰灯起动和光输出。

    Controlled leakage transformer for fluorescent lamp ballast including
integral ballasting inductor
    7.
    发明授权
    Controlled leakage transformer for fluorescent lamp ballast including integral ballasting inductor 失效
    荧光灯镇流器的控制泄漏变压器,包括积分电感

    公开(公告)号:US4902942A

    公开(公告)日:1990-02-20

    申请号:US200881

    申请日:1988-06-02

    Abstract: All the magnetic functions required in a ballast for a fluorescent lamp are integrated in a single, standard magnetic core which provides isolation, voltage step-up, ballasting, power factor correction and cathode heat for multiple lamps operating multiple lamps in an isolated-series configuration. In a three-legged transformer core embodiment, the primary winding is continuously wound on all three legs, while secondary windings are included on two of the legs. Ballasting inductance is provided by winding the primary on the third leg. The number of primary turns N.sub.p necessary to avoid saturation of the transformer for any specific input voltage and core material, the number of primary windings N.sub.p1 on the secondary legs and the number of primary windings N.sub.p2 on the third leg are determined according to the equation 2N.sub.p1 =N.sub.p -N.sub.p2.

    Abstract translation: 用于荧光灯的镇流器所需的所有磁功能都集成在单个标准磁芯中,为隔离串联配置中的多个灯操作的多个灯提供隔离,升压,镇流,功率因数校正和阴极热 。 在三腿式变压器铁芯实施例中,初级绕组连续缠绕在所有三条腿上,而次级绕组包括在两条腿上。 镇流电感是通过在第三条腿上缠绕主体来提供的。 根据等式2Np1确定为了避免任何特定输入电压和芯材料的变压器饱和所需的初级绕组数Np,次级脚上的初级绕组数Np1和第三支路上的初级绕组数目Np2 = Np-Np2。

    WIRELESS DATA PIPELINE
    8.
    发明申请
    WIRELESS DATA PIPELINE 审中-公开
    无线数据管道

    公开(公告)号:US20130316749A1

    公开(公告)日:2013-11-28

    申请号:US13479179

    申请日:2012-05-23

    CPC classification number: G01V1/223

    Abstract: System and method for retrieving data from distributed nodes using radio. Data is transmitted through a mesh of nodes to aggregators, and may be transmitted through a mesh of aggregators to higher level aggregators. High level aggregators are arranged in pipelines and configured to transmit and receive simultaneously to maximize information relaying capacity.

    Abstract translation: 使用无线电从分布式节点检索数据的系统和方法。 数据通过节点网格传输到聚合器,并且可以通过聚合器的网格传输到更高级别的聚合器。 高级聚合器被布置在管道中并且被配置为同时发送和接收以最大化信息中继能力。

    WIRELESS DATA ACQUISITION NETWORK AND OPERATING METHODS
    9.
    发明申请
    WIRELESS DATA ACQUISITION NETWORK AND OPERATING METHODS 有权
    无线数据采集网络和操作方法

    公开(公告)号:US20090265140A1

    公开(公告)日:2009-10-22

    申请号:US12107719

    申请日:2008-04-22

    CPC classification number: G01V1/223

    Abstract: A method of collecting data from wireless sensor units arranged in a network. The method may comprise the steps of initiating distribution of control signals to the wireless sensor units, acquiring data with the wireless sensor units by sensing one or more physical parameters, each of the wireless sensor units transmitting the acquired data in response to the control signals; and each of the wireless sensor units transmitting of at least a portion of the acquired data according to a prioritizing algorithm associated with each respective wireless sensor unit.

    Abstract translation: 从布置在网络中的无线传感器单元收集数据的方法。 该方法可以包括以下步骤:启动向无线传感器单元分配控制信号,通过感测一个或多个物理参数与无线传感器单元获取数据,每个无线传感器单元响应于控制信号发送所获取的数据; 并且所述无线传感器单元中的每一个根据与每个相应无线传感器单元相关联的优先级算法来发送所获取的数据的至少一部分。

Patent Agency Ranking