电力电子用银烧结接头的热-机械测量方法

R. Metasch, K. Meier, M. Roellig
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引用次数: 3

摘要

实现了一种测定剪切载荷条件下真实银烧结接头热力学特性的测量方法。本文介绍了开发和优化的一个银烧结接头具有较高间隙的搭接剪切基试样的测量装置和制造过程。进一步执行表征程序,允许确定时间,温度和工艺依赖的机械特性。利用成功制作的试样进行了第一次循环变形试验。为此,一个样品在$0.01 \mu \mathrm{m} /\mathrm{s}$和$1 \mu \mathrm{m} /\mathrm{s}$之间加载恒定变形速度,振幅为$\pm 3 \mu \mathrm{m}$。随着温度升高至200℃,测得的力幅值减小,力-位移-滞后表现出越来越强的延性变形行为。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermo-Mechanical Measurement Approach of Ag-sintered Joints for Power Electronics
The authors have realized a measurement approach for the determination of thermal-mechanical characteristics of real silver-sinter joints under shear load conditions. The paper present the developed and optimized measurement setup and the manufacturing process of the lap shear based specimen with a comparatively very high stand-off of one Ag-sinter joint. Further the performed characterization routine which allows the determination of time, temperature and process depended mechanical characteristics. With the successfully produced specimen samples a first cyclic deformation experiment were carried out. For this purpose one sample were loaded with constant deformation speeds between $0.01 \mu \mathrm{m} /\mathrm{s}$ and $1 \mu \mathrm{m} /\mathrm{s}$ to amplitudes of $\pm 3 \mu \mathrm{m}$. With increasing temperatures up to 200°C the measured forces amplitudes decrease and the force-displacement-hystereses show an increasingly ductile deformation behaviour.
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