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    • 4. 发明授权
    • Process and apparatus for improved module assembly using shape memory alloy springs
    • 使用形状记忆合金弹簧改进模块组装的工艺和装置
    • US06436223B1
    • 2002-08-20
    • US09250312
    • 1999-02-16
    • David L. EdwardsEnrique C. AbreuRonald L. HeringDavid C. Olson
    • David L. EdwardsEnrique C. AbreuRonald L. HeringDavid C. Olson
    • B32B3100
    • H01L21/68778F16F2224/0258H01L21/67092H01L21/67144Y10S148/908Y10S269/903Y10T29/53978
    • A fixture and process for assembly of semiconductor modules. Each module comprises a substrate and a cover attached to the substrate. The fixture comprises a baseplate adapted to accept the substrate and a spring-loading device containing a shape memory alloy spring engaging the cover. The shape memory alloy spring exerts a lesser force at room temperature and an elevated force at the bonding temperature of the bonding agent used to attach the cover to the substrate. The process comprises the steps of (a) loading she module into an assembly fixture and aligning a shape memory alloy spring over the module at room temperature; (b) placing the fixture and module into a heating chamber; (c) heating the fixture and module to a temperature sufficient for bonding and above the shape memory alloy spring transition temperature range so that the spring exerts an elevated force on the module; and (d) cooping the fixture and module below the transition temperature so that the spring exerts a lesser amount of force on the module, and disengaging the springs at the lower temperature.
    • 用于组装半导体模块的夹具和工艺。 每个模块包括衬底和附接到衬底的盖。 所述固定装置包括适于接纳所述基板的基板和包含接合所述盖的形状记忆合金弹簧的弹簧加载装置。 形状记忆合金弹簧在室温下施加较小的力,并且在用于将盖附着到基底上的粘结剂的粘结温度下提高力。 该过程包括以下步骤:(a)将模块加载到组装夹具中并在室温下将形状记忆合金弹簧对准模块; (b)将灯具和模块放入加热室; (c)将夹具和模块加热到足以粘结的温度并高于形状记忆合金弹簧转变温度范围,使得弹簧在模块上施加升高的力; 和(d)将夹具和模块配合在转变温度以下,使得弹簧在模块上施加较小的力,并在较低温度下分离弹簧。
    • 9. 发明授权
    • Method and apparatus for disconnecting the tip electrode during MRI
    • 在MRI期间断开尖端电极的方法和装置
    • US08032228B2
    • 2011-10-04
    • US12329383
    • 2008-12-05
    • Masoud AmeriGreg P. CarpenterDavid C. Olson
    • Masoud AmeriGreg P. CarpenterDavid C. Olson
    • A61N1/37
    • A61N1/056A61N1/086A61N2001/0585Y10S128/901
    • A medical device includes a pulse generator, a lead, and an electrode. The lead includes an electrode and a lead conductor connecting the pulse generator with the electrode via first and second conductive paths. The medical device includes first and second switches. The first switch includes a non-conductive state in the presence of a magnetic field, the non-conductive state preventing formation of the first conductive path between the pulse generator and the electrode. The second switch includes a non-conductive state that prevents formation of the second conductive path between the pulse generator and the electrode. The first switch in the non-conductive state and the second switch in the non-conductive state electrically shields the electrode from electromagnetic radiation and induced voltages during a magnetic resonance imaging procedure.
    • 医疗装置包括脉冲发生器,引线和电极。 引线包括通过第一和第二导电路径将脉冲发生器与电极连接的电极和引线导体。 医疗装置包括第一和第二开关。 第一开关包括在存在磁场的情况下的非导通状态,非导电状态阻止脉冲发生器和电极之间的第一导电路径的形成。 第二开关包括防止在脉冲发生器和电极之间形成第二导电路径的非导电状态。 在非导电状态的第一开关和非导电状态的第二开关在磁共振成像过程期间电屏蔽电磁辐射和感应电压。