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首页> 外文期刊>Journal of Materials Research >Effect of drop impact energy on contact resistance of anisotropic conductive adhesive film joints
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Effect of drop impact energy on contact resistance of anisotropic conductive adhesive film joints

机译：跌落冲击能量对各向异性导电胶膜接头接触电阻的影响

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摘要

The contact resistances investigated in this study of anisotropic conductive adhesive film joints using Au/Ni bumps and flexible substrates are found to be increased by the drop impact energy and also by the combined effect of heat/humidity and the impact energy. The samples humidified at 85 ℃/85% RH for 384 h, on which impact energy of 50 J was induced, exhibit the most severe results. The contact resistance increases by 700%, which had been about 0.062 Ω in the as-bonded condition. The samples without humidification showed a sluggish and gentle increase in contact resistance with induced drop impact energy. The contact resistance was found to be increased by 400% after absorbing 90 J energy. Scanning electron microscopy images show particle deformation due to abrasion and friction between the contacting surfaces resulting from the sudden impact. Joints are also observed with no connections, which signify open circuits. Almost 25% of circuits were found open in the samples (after 384 h in a humid environment), which have suffered severe mechanical shock. Breaking of the conductive layer of the particle and exposing the underlying polymeric portion was also observed.
机译：发现在本研究中，使用Au / Ni凸点和柔性基板的各向异性导电胶膜接头的接触电阻会因滴落冲击能以及热/湿度和冲击能的综合作用而增加。在85℃/ 85％RH下加湿384 h的样品产生的冲击能量为50 J，表现出最严重的结果。接触电阻增加了700％，在接合状态下约为0.062Ω。没有加湿的样品显示出缓慢而平缓的接触电阻增加，并产生了液滴冲击能量。发现吸收90 J能量后，接触电阻增加了400％。扫描电子显微镜图像显示由于突然撞击导致接触表面之间的磨损和摩擦导致的颗粒变形。还观察到没有连接的接头，表示开路。样品中有将近25％的电路断开（在潮湿环境中384小时后），这些电路遭受了严重的机械冲击。还观察到了颗粒的导电层的破裂并暴露出下面的聚合物部分。

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  • 来源
    《Journal of Materials Research》 |2004年第6期|p.1662-1668|共7页
  • 作者

    Rashed Adnan Islam; Y.C. Chan; B. Ralph;

  • 作者单位

    Department of Electronic Engineering, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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