With continuous scaling of CMOS device dimensions, sample preparation for Transmission Electron Microscope (TEM) analysis becomes increasingly important and challenging as the required sample thickness is less than several tens of nanometers. This paper studies the protection materials for FIB milling to increase the success rate of ex-situ ‘lift-out’ TEM sample preparation on 14nm Fin-Field Effect Transistor (FinFET).
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Issue Section:Sample Preparation and Deprocessing