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The analysis of abnormal conditions for a type of 10-bit D/A converter

机译:一种10位D / A转换器的异常情况分析

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Failure analysis of electronic components is becoming more and more important in recent years. Converters often fail after a period of storage, e.g. the failure mode of 782# caused by parameter changes in integral nonlinearity and differential nonlinearity. This paper analyzes an abnormal condition of a 10bit D/A converter and introduces an effective analysis process to this mode. First, ESD reason can be eliminated by means of ESD test because I/V curves of the test circuits are different from the failed product. Then, the real reason of the 782# mode was found by analyzing the layout and the craft deviation. Experimental results from simulation and test show that the failure mode caused by layout defects can be detected by the proposed method.
机译:近年来,电子部件的故障分析变得越来越重要。一段时间后,转换器通常会发生故障,例如积分非线性和微分非线性参数变化引起的782#失效模式。本文分析了10位D / A转换器的异常情况,并介绍了对该模式的有效分析过程。首先,可以通过ESD测试消除ESD原因,因为测试电路的I / V曲线与故障产品不同。然后,通过分析布局和工艺偏差来找到782#模式的真正原因。仿真和试验的实验结果表明,该方法可以检测出布局缺陷引起的失效模式。

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