Abstract
Silver-based metallization has been studied for a potential application as an electrically programmable fuse (eFUSE) device by local Joule heating induced at high current densities. Three different line widths (3.8, 6.3, and 10 mum) are investigated by subjecting them to extremely high current-density conditions. Based on short median lifetime and the topography of the failure sites, the dominant failure mechanism in Ag eFUSEs with TiN barrier layer under these current densities is examined. Evaporation times have also been calculated to correlate the Ag properties with the median failure time. The barrier layer has an important role to play in determining the failure time in these types of eFUSEs.
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