Gate oxides beyond SiO2

DG Schlom, S Guha, S Datta - MRS bulletin, 2008‏ - cambridge.org
This year marks a major materials milestone in the makeup of silicon-based field-effect
transistors: in the microprocessors produced by leading manufacturers, the SiO2 gate …

Thin-film transistor and ultra-large scale integrated circuit: Competition or collaboration

Y Kuo - Japanese journal of applied physics, 2008‏ - iopscience.iop.org
Thin-film transistor (TFT) and ultra-large scale integrated circuit (ULSIC) have been
compared and discussed with respect to the development history, technology trends, and …

Diffusion and interface growth in hafnium oxide and silicate ultrathin films on Si (001)

LV Goncharova, M Dalponte, T Feng, T Gustafsson… - Physical Review B …, 2011‏ - APS
Medium energy ion scattering has been used in combination with O 16 and O 18 isotope
tracing to determine elemental depth distributions and elucidate oxygen transport in 2–5 nm …

Impact of precursor chemistry and process conditions on the scalability of ALD HfO2 gate dielectrics

J Swerts, N Peys, L Nyns, A Delabie… - Journal of The …, 2009‏ - iopscience.iop.org
The downscaling of high-/metal gate transistor devices requires thin-film deposition
processes that deliver not only an outstanding high-oxide quality, but also a strict interfacial …

Oxygen diffusion and reactions in Hf-based dielectrics

LV Goncharova, M Dalponte, DG Starodub… - Applied Physics …, 2006‏ - pubs.aip.org
Oxygen transport in and reactions with thin hafnium oxide and hafnium silicate films have
been investigated using medium energy ion scattering in combination with O 2 18 isotopic …

Effects of post–deposition annealing on the material characteristics of ultrathin HfO2 films on silicon

R Puthenkovilakam, YS Lin, J Choi, J Lu… - Journal of applied …, 2005‏ - pubs.aip.org
High quality HfO 2 films were deposited on p-type Si (100) wafers by an atomic layer
deposition scheme. The deposited films were smooth, amorphous, and stoichiometric, as …

Ultrascaled hafnium silicon oxynitride gate dielectrics with excellent carrier mobility and reliability

MA Quevedo-Lopez, SA Krishnan, PD Kirsch… - Applied Physics …, 2005‏ - pubs.aip.org
A hafnium silicon oxynitride gate dielectric with a universal channel mobility of∼ 90% at 1
MV∕ cm⁠, equivalent oxide thickness of approximately 1 nm⁠, and leakage current 200× …

Comparison of electrical and chemical characteristics of ultrathin HfON versus HfSiON dielectrics

G Pant, A Gnade, MJ Kim, RM Wallace… - Applied physics …, 2006‏ - pubs.aip.org
The electrical and chemical properties of ultrathin HfON and HfSiON gate dielectrics are
investigated as a function of physical thickness. Grazing incidence x-ray diffraction was used …

High performance gate first HfSiON dielectric satisfying 45nm node requirements

MA Quevedo-Lopez, SA Krishnan… - … Meeting, 2005. IEDM …, 2005‏ - ieeexplore.ieee.org
We show an ALD based HfSiON gate dielectric scaled to 1 nm EOT with excellent
performance and reliability. Furthermore, the HfSiON dielectric films are integrated in a gate …

Breakdown phenomena of zirconium-doped hafnium oxide high-k stack with an inserted interface layer

W Luo, T Yuan, Y Kuo, J Lu, J Yan, W Kuo - Applied Physics Letters, 2006‏ - pubs.aip.org
Two-step breakdown is observed on a zirconium-doped hafnium oxide film with a hafnium
silicate interface layer. The high-k stack has an equivalent oxide thickness of∼ 1.7 nm⁠. It is …