摘要
本文通过追溯了微电子器件封装的电源和地阻抗测试方法的发展历史,基于对业界封装阻抗测试方法的分析,比较了同类方法间各自的优势,分析了美军标MI L-STD-883K中封装阻抗测试方法很少修订却长期存在的原因。明确了美军标及其他测试方法的适用范围,总结了封装电源和地阻抗的影响因素,提出了我国相应标准制修订方向的建议。同时,经相关测试结果表明,标准中的现有方法在评估封装阻抗对整体电路影响方面过于简单,需要结合电磁仿真和时域反射方法对封装阻抗影响做出整体评估,从而提高测试的准确度,经过改进的方法可以在我国相应标准的制修订中加以采用。
This paper presents the history ofpower supply and ground impedance measurements for microelectronics device package. Based on the analysis of test methods used in the industry, the respective advantages are compared.Analyzing the reason why impedance test in the standard method is rarely revised, the applicability of the impedance measurement methods in MIL-STD-883 K and the industry, and revision directionsforour corresponding standard in China are proposed. The test results show that the electromagnetic simulation tools and TDR need to be used to estimate the influence integrally and introducedto the standards in China.
引文
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