器件失效是指其功能完全或部分丧失、参数漂移,或间歇性出现以上情况。失效模式是产品失效的外在宏观表 现,有开路、短路、时开时断、功能异常、参数漂移等。按照失效机理。失效可分为结构性失效、热失效、电失效、腐蚀失效等。 失效分析方法:
(1)非破坏性分析:X射线透视检查、超声扫面检查、电性能测试、形貌测试、局部成分分析
(2)破坏性分析:开封检查、剖面分析、探针测试、热性能测试、整体成分测试等
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电子数码显微镜
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X射线检测机
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超声扫描
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扫描电镜和能谱分析
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Inspect the appearance, cracks, contamination, scratches, oxide layer defects, etc. of the sample
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Check bonding wires, chip connections and lead frames, voids, bubbles, etc
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Check for layering between devices and chip cracks
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Plan view and cross-sectional microstructure inspection of the sample, multi-layer sample inspection, and accurate critical size measurement; Qualitative and semi quantitative analysis of analytical elements on the surface of the sample
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离子研磨机
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热点定位分析系统
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激光开帽机
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切片研磨机
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Fine machining of the mechanical polishing of the sample, with small cracks and voids
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Detect abnormal leakage failure points on the surface of the chip, as well as abnormal short circuit points in the sample
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Remove the compound, expose the bare film, and observe the bonding defects of the bare film or lead wire
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Section display of sample structure, internal structure or abnormal points
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