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Digital tester-based measurement methodology for process control in multilevel metallization systems

机译:基于数字测试仪的测量方法,用于多层金属化系统中的过程控制

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Abstract: The control of metallization layers' integrity gain more importance increasing the total number of metallization layers. Therefore, an electrical measurement procedure has to separate defectless test structure elements from faulty test structure elements. To decrease the number of test procedures and test equipment, this binary decision will be made parallel to the functional test of product chips using the same digital test system to measure test structure elements too. In addition, the geometrical arrangement of the test structure layout elements will also be transformed to binary description. As a result of this, novel algorithms will now enable the direct comparison of both binary data sets to extract test structure faults like opens and shorts as well as process specific defect parameters.!10
机译:摘要:控制金属化层的完整性变得越来越重要,这增加了金属化层的总数。因此,电测量过程必须将无缺陷的测试结构元件与有缺陷的测试结构元件分开。为了减少测试程序和测试设备的数量,该二元决策将与使用相同数字测试系统来测量测试结构元素的产品芯片的功能测试并行进行。此外,测试结构布局元素的几何排列也将转换为二进制描述。因此,新颖的算法现在可以直接比较两个二进制数据集,以提取测试结构故障,例如开路和短路以及特定于工艺的缺陷参数。!10

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