This paper provides an overview of the semiconductor analysis process at BMW. It explains how it was developed and how it differs from the failure analysis process used in semiconductor fabs. It describes the general process flow from first analyses through descending levels of localization at different length scales. It discusses sample preparation procedures, test methods and equipment, and advanced techniques. In the work presented here, the authors explain how they combined ToF-SIMS with STEM lamella preparation in a FIB-SEM, which allowed them to correlate concentration variances in an underlying layer with surface anomalies discovered during light microscope inspection.

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