T. Sasaki, F. Ootsuka, T. Hoshi, T. Kawahara, T. Maeda, M. Yasuhira, T. Arikado
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The influence of silicon nitride cap on NBTI and fermi pinning in HfO2 gate stacks
In this paper, we report the improvements in the interfacial reaction between the gate dielectric and the gate electrode by adding SiN cap layer on HfO/sub 2/. We also report the drastic improvements in the gate leakage, V/sub th/ shift and NBTI.