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In this paper, we present three cases studies with dedicated FIB-TEM technique that developed to characterize each of them. The first case describes a FIB sample preparation method that can include two columns of the structure of interest into one sample. It is a useful technique to characterize the overlay offset when more than one column of the structures is concerned. The second case is about to...
To realize higher spatial resolution than conventional SEM-based nano-probing system, a novel Electron Beam Absorbed Current imaging system was newly developed using a Hitachi HD-2700 200 kV dedicated STEM. Its specimen holder accommodates a mechanical probe for current detection and TEM grid specimen. This holder also has a micrometer-based coarse positioning and piezoelectric-elements-based fine...
Defect localization of short failures has been a big challenge in modern advanced nanoscale devices. In recent years, Electron Beam Induced Resistance Change (EBIRCh) technique has been applied to failure analysis. The EBIRCh technique incorporated into SEM based nanoprobing system allows not only direct electrical characterization of suspicious bridge sites but also direct pinpointing of short defects...
Electron beam absorbed current (EBAC) has been used to isolate defects in BEOL metal stacks. With the increasing layout complexity, metal signal lines often run over 100um area and over multiple metal stacks. This makes SEM inspections during polishing tedious, time consuming and easy to overlook the defect. With the EBAC technique, it often shows the entire routing of the signal line with additional...
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