Atomic layer deposition of LaxZr1-xO2-delta (x=0.25) high-k dielectrics for advanced gate stacks. Tsoutsou, D., Lamagna, L., Volkos, S. N., Molle, A., Baldovino, S., Schamm, S., Coulon, P. E., & Fanciulli, M. Applied Physics Letters, 94(5):053504, February, 2009. WOS:000263167000077
doi  abstract   bibtex   
Thin LaxZr1-xO2-delta (x=0.25) high permittivity (k) films are grown on Si(100) by atomic layer deposition at 300 degrees C using ((PrCp)-Pr-i)(3)La, (MeCp)(2)ZrMe(OMe) and O-3 species. Their properties are studied by grazing incidence x-ray diffraction, high resolution transmission electron microscopy, electron energy loss spectroscopy, x-ray photoelectron spectroscopy, and electrical measurements on the as-grown films and after vacuum annealing at 600 degrees C. Annealed films feature resistance to hygroscopicity, a large k value of around 30 and an acceptable leakage current density. A low-k silica-rich interlayer is also evidenced at both pristine and annealed high-k/Si interfaces.
@article{tsoutsou_atomic_2009,
	title = {Atomic layer deposition of {LaxZr1}-{xO2}-delta (x=0.25) high-k dielectrics for advanced gate stacks},
	volume = {94},
	issn = {0003-6951},
	doi = {10.1063/1.3075609},
	abstract = {Thin LaxZr1-xO2-delta (x=0.25) high permittivity (k) films are grown on Si(100) by atomic layer deposition at 300 degrees C using ((PrCp)-Pr-i)(3)La, (MeCp)(2)ZrMe(OMe) and O-3 species. Their properties are studied by grazing incidence x-ray diffraction, high resolution transmission electron microscopy, electron energy loss spectroscopy, x-ray photoelectron spectroscopy, and electrical measurements on the as-grown films and after vacuum annealing at 600 degrees C. Annealed films feature resistance to hygroscopicity, a large k value of around 30 and an acceptable leakage current density. A low-k silica-rich interlayer is also evidenced at both pristine and annealed high-k/Si interfaces.},
	language = {English},
	number = {5},
	journal = {Applied Physics Letters},
	author = {Tsoutsou, D. and Lamagna, L. and Volkos, S. N. and Molle, A. and Baldovino, S. and Schamm, S. and Coulon, P. E. and Fanciulli, M.},
	month = feb,
	year = {2009},
	note = {WOS:000263167000077},
	keywords = {Annealing, Atomic layer deposition, Permittivity, Transmission   electron microscopy, X-ray diffraction, X-ray photoelectron spectra, electron energy loss spectra, elemental semiconductors, films, high-k dielectric thin films, lanthanum   compounds, leakage currents, oxides, silicon, zro2},
	pages = {053504},
}

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