Abstract:Plasma-charging damage (PCD) to high-k MOSFETs was evaluated by various parameters such as random telegraph noise (RTN), threshold voltage shift ( V th ), and TDDB lifetimes. A new evidence of an enhancement of TDDB lifetime under constant-voltage stress (t CVS ) was found for plasmadamaged high-k MOSFETs-a certain amount of PCD results in conflicting data between t CVS and other parameters (RTN, V th , and constant-current TDDB lifetime). The observed feature was ascribed to a characteristic defect generation… Show more
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