High resolution pressure-sensing device having an insulating flexible matrix loaded with filler particles
    252.
    发明授权
    High resolution pressure-sensing device having an insulating flexible matrix loaded with filler particles 失效
    具有负载有填料颗粒的绝缘柔性基质的高分辨率压力传感装置

    公开(公告)号:US06820502B2

    公开(公告)日:2004-11-23

    申请号:US10366822

    申请日:2003-02-14

    CPC classification number: G01L1/205

    Abstract: A high-resolution pressure-sensing device is disclosed. The device includes an insulating flexible matrix having a plurality of filler particles. Application of a force to the matrix causes compression of the matrix. This results in the filler particles occupying a greater amount of space within the matrix relative to when no force is applied. A detector attached to the matrix detects or measures the volume of the filler particles relative to the volume of the matrix, and therefore determines the force applied to the matrix. Preferably, the resistivity of the matrix is inversely proportional to the volume percent of the filler particles, in which case the detector is a resistance-measuring circuit.

    Abstract translation: 公开了一种高分辨率压力感测装置。 该装置包括具有多个填料颗粒的绝缘柔性基质。 对矩阵施加力会导致矩阵的压缩。 这导致在没有施加力的情况下,填料颗粒在基质内占据更大量的空间。 连接到基体的检测器检测或测量填料颗粒相对于基体体积的体积,因此确定施加到基质上的力。 优选地,基质的电阻率与填料颗粒的体积百分比成反比,在这种情况下,检测器是电阻测量电路。

    Composite interposer for BGA packages

    公开(公告)号:US06770981B2

    公开(公告)日:2004-08-03

    申请号:US10373261

    申请日:2003-02-24

    Abstract: An interposer in a BGA or similar package includes a polymide core and a filler of thermally conductive, electrically nonconductive filler. The interposer has a higher thermal conductivity as compared to conventional interposers, thereby increasing the thermal dissipation through the interposer and enabling the device to cool more efficiently. The filler also reduces the coefficient of thermal expansion of the interposer to more closely match the die and reduce stresses. Furthermore, the filler increases the rigidity of the interposer, thereby enabling the interposer to be handled and carried more easily, for example, without a metal frame carrier.

    High resolution pressure-sensing device having an insulating flexible matrix loaded with filler particles

    公开(公告)号:US06684717B2

    公开(公告)日:2004-02-03

    申请号:US09922966

    申请日:2001-08-06

    CPC classification number: G01L1/205

    Abstract: A high-resolution pressure-sensing device is disclosed. The device includes an insulating flexible matrix having a plurality of filler particles. Application of a force to the matrix causes compression of the matrix. This results in the filler particles occupying a greater amount of space within the matrix relative to when no force is applied. A detector attached to the matrix detects or measures the volume of the filler particles relative to the volume of the matrix, and therefore determines the force applied to the matrix. Preferably, the resistivity of the matrix is inversely proportional to the volume percent of the filler particles, in which case the detector is a resistance-measuring circuit.

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