R.P. Pezzi, R.M. Wallace, et al.
International Conference on Characterization and Metrology for ULSI Technology 2005
Hf O2 Si O2 Si (001) thin film structures were exposed at room temperature to water vapor isotopically enriched in H2 and O18 followed by quantification and profiling of these nuclides by nuclear reaction analysis. We showed (i) the formation of strongly bonded hydroxyls at the Hf O2 surface; (ii) room temperature migration of oxygen and water-derived oxygenous species through the Hf O2 films, indicating that Hf O2 is a weak diffusion barrier for these oxidizing species; (iii) hydrogenous, water-derived species attachment to the Si O2 interlayer, resulting in detrimental hydrogenous defects therein. Consequences of these results to Hf O2 -based metal-oxide-semiconductor devices are discussed. © 2006 American Institute of Physics.
R.P. Pezzi, R.M. Wallace, et al.
International Conference on Characterization and Metrology for ULSI Technology 2005
L. Miotti, R.P. Pezzi, et al.
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
E. Gusev, M. Copel, et al.
Applied Physics Letters
M. Yang, M. Ieong, et al.
IEDM 2003