System and method for testing dynamic resistance during thermal shock cycling
    3.
    发明申请
    System and method for testing dynamic resistance during thermal shock cycling 审中-公开
    在热冲击循环过程中测试动态电阻的系统和方法

    公开(公告)号:US20060103404A1

    公开(公告)日:2006-05-18

    申请号:US10989888

    申请日:2004-11-12

    IPC分类号: G01R31/02

    摘要: A system includes a temperature chamber (100), a text fixture (402), a test coupon (400), a data acquisition unit (404), an ohmmeter (406) and a computer (410). The temperature chamber (100) provides temperature extremes to the test coupon (400). The test coupon (400) includes a substrate (314), one or more vias (418-429) and traces (402-412) connecting the vias. The data acquisition unit (404) continuously measures a resistance value of the circuit formed by the vias (418-429) and traces (402-412) during temperature cycling of the test coupon (400) held by the test fixture (402). The ohmmeter (406) measures the temperature of the test coupon (400) with a thermocouple. The data is used to detect failures of the materials in the test coupon (400) during the temperature cycling.

    摘要翻译: 系统包括温度室(100),文本夹具(402),测试试样(400),数据获取单元(404),欧姆表(406)和计算机(410)。 温度室(100)向试样(400)提供极端温度。 试样(400)包括衬底(314),连接通孔的一个或多个通孔(418-429)和迹线(402-412)。 在由测试夹具(402)保持的测试试样(400)的温度循环期间,数据获取单元(404)连续地测量由通孔(418-429)和迹线(402-412)形成的电路的电阻值。 欧姆计(406)用热电偶测量试样(400)的温度。 该数据用于在温度循环期间检测试样(400)中的材料的失效。

    Pressure sensitive material
    5.
    发明申请
    Pressure sensitive material 审中-公开
    压敏材料

    公开(公告)号:US20070112166A1

    公开(公告)日:2007-05-17

    申请号:US11646521

    申请日:2006-12-28

    IPC分类号: C08G18/00

    摘要: A polymeric material which exhibits an optically detectable response to changes in pressure. The material includes an elastomer selected from the group of a polyurethane, a polyacrylate, and a silicone, in combination with a photochemical system. The photochemical system may be in the form of an exciplex or a fluorescence resonance energy transfer. Both photochemical systems are reversible processes. Synthesis of the elastomer and the photochemical system produce a material which forms an excited charge transfer complex when subject to an increase in pressure and a less excited charge transfer complex as pressure is lowered.

    摘要翻译: 对压力变化表现出可光学检测的响应的聚合物材料。 该材料包括与光化学系统组合的选自聚氨酯,聚丙烯酸酯和硅氧烷的弹性体。 光化学系统可以是激元复合物或荧光共振能量转移的形式。 两种光化学系统都是可逆过程。 弹性体和光化学体系的合成产生当压力增加时形成激发电荷转移络合物的材料,并且当压力降低时产生较少激发的电荷转移络合物。