PROJECT TITLE :
Correlation Between Oxide Trap Generation and Negative-Bias Temperature Instability
Evidence shows that substantial interface degradation under negative-bias temperature (NBT) stressing does not result in any apparent oxide trap generation. The link between NBT instability and oxide trap generation is actually found in the recoverable hole-trapping component ($R$) of the former. When $R$ is constant, independent of the number of stress/relaxation cycles, no apparent oxide trap generation is observed in spite of nonnegligible interface degradation. However, when oxide trap generation occurs, a correlated decrease of $R$ is observed. Analysis shows that the generated oxide traps are due to a portion of the trapped holes being transformed into a more permanent form. A possible explanation based on the oxygen vacancy defect is given.
Did you like this research project?
To get this research project Guidelines, Training and Code... Click Here