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    • 4. 发明授权
    • Method to determine the root causes of failure patterns by using spatial correlation of tester data
    • 通过使用测试仪数据的空间相关性确定故障模式的根本原因的方法
    • US07676775B2
    • 2010-03-09
    • US11754947
    • 2007-05-29
    • Howard ChenKatherine V. HawkinsFook-Luen HengLouis HsuXu Ouyang
    • Howard ChenKatherine V. HawkinsFook-Luen HengLouis HsuXu Ouyang
    • G06F17/50
    • G01R31/2894G01R31/31718G01R31/318314G11C29/10G11C29/56G11C29/56008
    • A method for determining the root causes of fail patterns in integrated circuit chips is provide wherein a known integrated circuit chip layout is used to identify a plurality of potential defects and a plurality of potential fail patterns in the integrated circuit chip. Correlations between the potential defects and the potential fail patterns that result from those defects are identified. Based on this identification, the potential fail patterns are grouped by common potential defect. An actual integrated circuit chip that is manufactured in accordance with the test layout is tested for failure patterns. These failure patterns are then compared to the groupings of potential fail patterns. When a match is found, that is when a given group of fail patterns is found in the actual integrated circuit chip, then the potential defect associated with the potential fail patterns to which the actual fail patterns are matched is identified. This defect is the root cause of the failure pattern in the actual chip.
    • 提供了一种用于确定集成电路芯片中的故障模式的根本原因的方法,其中使用已知的集成电路芯片布局来识别集成电路芯片中的多个潜在缺陷和多个潜在故障模式。 鉴定出潜在缺陷与由这些缺陷产生的潜在失效模式之间的相关性。 基于此识别,潜在的故障模式由共同的潜在缺陷分组。 测试根据测试布局制造的实际集成电路芯片的故障模式。 然后将这些故障模式与潜在故障模式的分组进行比较。 当发现匹配时,即在实际的集成电路芯片中发现给定的一组故障模式时,识别与实际故障模式匹配的潜在故障模式相关联的潜在缺陷。 这个缺陷是实际芯片中故障模式的根本原因。