2024
DOI: 10.1007/s11668-024-02002-9
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Backside Analysis Strategy to Identify a Package-Related Failure Mode at an Automotive Magnetic Sensor Device

M. Simon-Najasek,
F. Naumann,
S. Huebner
et al.

Abstract: This paper presents a root cause analysis case study of defective Hall effect sensor devices. The study identified a complex failure mode caused by chip–package interaction, which has a similar signature to discharging defects such as ESDFOS (electrostatic discharge from outside to surface). However, the study revealed that the defect was induced by local mechanical force applied to IC structures due to the presence of large irregular shaped filler particles within the mold compound. Extensive failure analysis… Show more

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