High-res 3D X-ray microscopy for non-destructive failure analysis of chip-to-chip micro-bump interconnects in stacked die packages
2017
Novel 3D architecture of electronics packages raises immense challenges for electrical fault isolation and physical failure analysis (PFA). This paper describes a streamlined workflow involving 3D X-ray Microscopy (XRM) to effectively bridge fault isolation and physical failure analysis (PFA). The case studies on chip-to-chip micro-bump interconnecting failure will be discussed. X-ray microscopy improved the efficiency and efficacy of failure analysis (FA) by non-destructively imaging and analyzing the defects, which was impossible for traditional faulty isolation techniques.
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