Materials for interconnects

D Gall, JJ Cha, Z Chen, HJ Han, C Hinkle, JA Robinson… - MRS Bulletin, 2021 - Springer
The electrical resistance of interconnect wires increases with decreasing size, causing
signal delay and energy consumption that limits further downscaling of integrated circuits …

Size effects and charge transport in metals: Quantum theory of the resistivity of nanometric metallic structures arising from electron scattering by grain boundaries and …

RC Munoz, C Arenas - Applied Physics Reviews, 2017 - pubs.aip.org
Ever since the construction of the first integrated circuits (IC's) in the late fifties, an effort to
increase the speed of the ICs by decreasing the linear dimensions of its components has …

[HTML][HTML] Electron mean free path in elemental metals

D Gall - Journal of applied physics, 2016 - pubs.aip.org
The electron mean free path λ and carrier relaxation time τ of the twenty most conductive
elemental metals are determined by numerical integration over the Fermi surface obtained …

[HTML][HTML] The search for the most conductive metal for narrow interconnect lines

D Gall - Journal of Applied Physics, 2020 - pubs.aip.org
A major challenge for the continued downscaling of integrated circuits is the resistivity
increase of Cu interconnect lines with decreasing dimensions. Alternative metals have the …

Thickness dependence of the resistivity of platinum-group metal thin films

S Dutta, K Sankaran, K Moors, G Pourtois… - Journal of Applied …, 2017 - pubs.aip.org
We report on the thin film resistivity of several platinum-group metals (Ru, Pd, Ir, and Pt).
Platinum-group thin films show comparable or lower resistivities than Cu for film thicknesses …

[HTML][HTML] Resistivity size effect in epitaxial Ru (0001) layers

E Milosevic, S Kerdsongpanya, A Zangiabadi… - Journal of Applied …, 2018 - pubs.aip.org
Epitaxial Ru (0001) layers are sputter deposited onto Al 2 O 3 (0001) substrates and their
resistivity ρ measured both in situ and ex situ as a function of thickness d= 5–80 nm in order …

The anisotropic size effect of the electrical resistivity of metal thin films: Tungsten

P Zheng, D Gall - Journal of Applied Physics, 2017 - pubs.aip.org
The resistivity of nanoscale metallic conductors is orientation dependent, even if the bulk
resistivity is isotropic and electron scattering cross-sections are independent of momentum …

Resistivity scaling due to electron surface scattering in thin metal layers

T Zhou, D Gall - Physical Review B, 2018 - APS
The effect of electron surface scattering on the thickness-dependent electrical resistivity ρ of
thin metal layers is investigated using nonequilibrium Green's function density functional …

Anisotropic resistivity size effect in epitaxial Mo (001) and Mo (011) layers

A Jog, P Zheng, T Zhou, D Gall - Nanomaterials, 2023 - mdpi.com
Mo (001) and Mo (011) layers with thickness d= 4–400 nm are sputter-deposited onto MgO
(001) and α-Al2O3 (11 2¯ 0) substrates and their resistivity is measured in situ and ex situ at …

[HTML][HTML] Resistivity size effect in epitaxial iridium layers

A Jog, D Gall - Journal of Applied Physics, 2021 - pubs.aip.org
The resistivity size effect in Ir is quantified with in situ and ex situ transport measurements at
295 and 77 K using epitaxial layers with thickness d= 5–140 nm deposited on MgO (001) …