Protection of electrical devices with voltage variable materials
    1.
    发明授权
    Protection of electrical devices with voltage variable materials 失效
    用电压可变材料保护电气设备

    公开(公告)号:US06693508B2

    公开(公告)日:2004-02-17

    申请号:US09500622

    申请日:2000-02-09

    IPC分类号: H01L713

    摘要: An arrangement of voltage variable materials for the protection of electrical components from electrical overstress (EOS) transients. A device having a plurality of electrical leads, a ground plane and a layer of voltage variable material. The voltage variable material physically bonds the plurality of electrical leads to one another as well as provides an electrical connection between the plurality of electrical leads and the ground plane. A die having a circuit integrated therein is attached to the ground plane. Conductive members electrically connect the plurality of electrical leads to the integrated circuit. At normal operating voltages, the voltage variable material has a high resistance, thus channeling current from the electrical leads to the integrated circuit via the conductive members. In response to a high voltage EOS transient, the voltage variable material essentially instantaneously switches to a low resistance state, channeling the potentially harmful EOS transient to the ground plane and away from the integrated circuit.

    摘要翻译: 用于保护电气部件免受电力过载(EOS)瞬变的电压可变材料的布置。 具有多个电引线,接地平面和电压可变材料层的器件。 电压可变材料将多个电引线彼此物理地接合,并且在多个电引线和接地平面之间提供电连接。 具有集成在其中的电路的管芯附接到接地平面。 导电构件将多个电引线电连接到集成电路。 在正常工作电压下,电压可变材料具有高电阻,从而通过导电构件将电流从电引线引导到集成电路。 响应于高电压EOS瞬态,电压可变材料基本上瞬间切换到低电阻状态,将潜在有害的EOS瞬态引导到接地平面并远离集成电路。

    PTC circuit protection devices
    3.
    发明授权
    PTC circuit protection devices 失效
    PTC电路保护装置

    公开(公告)号:US06838972B1

    公开(公告)日:2005-01-04

    申请号:US09510116

    申请日:2000-02-22

    摘要: An electrical circuit protection device with three supporting substrates, two PTC elements, and first and second end terminations. The first and third substrates have an electrode formed on a first surface thereof. The second substrate has electrodes formed on both surfaces thereof. The first PTC element is laminated between the first and second substrates, electrically connecting thefirst electrodes formed on the first and second substrates. The second PTC element is laminated between the second and third substrates, electrically connecting the second electrode formed on the second substrate and the first electrode formed on the third substrate. The end terminations wraps around opposite ends of the device. The first end termination is in electrical contact with the first electrodes formed on the second and third substrates and the second end termination is in electrical contact with the first electrode formed on the first substrate and the second electrode formed on the second substrate. The PTC elements are electrically connected in parallel between the end terminations. The multi-layered configuration allows for an increased electrical rating without increasing the overall footprint, i.e., length and width, of the device.

    摘要翻译: 具有三个支撑基板,两个PTC元件以及第一和第二端接端子的电路保护装置。 第一和第三基板在其第一表面上形成有电极。 第二基板具有形成在其两个表面上的电极。 第一PTC元件层叠在第一和第二基板之间,电连接形成在第一和第二基板上的第一电极。 第二PTC元件层叠在第二和第三基板之间,电连接形成在第二基板上的第二电极和形成在第三基板上的第一电极。 终端终端缠绕在设备的相对端。 第一端接头与形成在第二和第三基板上的第一电极电接触,并且第二端接头与形成在第一基板上的第一电极和形成在第二基板上的第二电极电接触。 PTC元件在端接端之间并联电连接。 多层构造允许提高电气额定值而不增加设备的整体占地面积,即长度和宽度。

    Protection of electrical devices with voltage variable materials
    4.
    发明授权
    Protection of electrical devices with voltage variable materials 失效
    用电压可变材料保护电气设备

    公开(公告)号:US06549114B2

    公开(公告)日:2003-04-15

    申请号:US09379422

    申请日:1999-08-19

    IPC分类号: H01L710

    摘要: An arrangement of voltage variable materials for the protection of electrical components from electrical overstress (EOS) transients. A device having a plurality of electrical leads, a ground plane and a layer of voltage variable material. The voltage variable material physically bonds the plurality of electrical leads to one another as well as provides an electrical connection between the plurality of electrical leads and the ground plane. A die having a circuit integrated therein is attached to the ground plane. Conductive members electrically connect the plurality of electrical leads to the integrated circuit. At normal operating voltages, the voltage variable material has a high resistance, thus channeling current from the electrical leads to the integrated circuit via the conductive members. In response to a high voltage EOS transient, the voltage variable material essentially instantaneously switches to a low resistance state, channeling the potentially harmful EOS transient to the ground plane and away from the integrated circuit.

    摘要翻译: 用于保护电气部件免受电力过载(EOS)瞬变的电压可变材料的布置。 具有多个电引线,接地平面和电压可变材料层的器件。 电压可变材料将多个电引线彼此物理地接合,并且在多个电引线和接地平面之间提供电连接。 具有集成在其中的电路的管芯附接到接地平面。 导电构件将多个电引线电连接到集成电路。 在正常工作电压下,电压可变材料具有高电阻,从而通过导电构件将电流从电引线引导到集成电路。 响应于高电压EOS瞬态,电压可变材料基本上瞬间切换到低电阻状态,将潜在有害的EOS瞬态引导到接地平面并远离集成电路。