Materials quest for advanced interconnect metallization in integrated circuits

JH Moon, E Jeong, S Kim, T Kim, E Oh, K Lee… - Advanced …, 2023 - Wiley Online Library
Integrated circuits (ICs) are challenged to deliver historically anticipated performance
improvements while increasing the cost and complexity of the technology with each …

[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 …

Properties of ultrathin molybdenum films for interconnect applications

V Founta, JP Soulié, K Sankaran, K Vanstreels… - Materialia, 2022 - Elsevier
The structural and electrical properties of Mo thin films with thicknesses between 3 and 50
nm, deposited by physical vapor deposition, have been evaluated in order to assess the …

Ultralow electron-surface scattering in nanoscale metals leveraging Fermi-surface anisotropy

S Kumar, C Multunas, B Defay, D Gall… - Physical Review …, 2022 - APS
Increasing resistivity of metal wires with reducing nanoscale dimensions is a major
performance bottleneck of semiconductor computing technologies. We show that metals with …

[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 …

Interdiffusion reliability and resistivity scaling of intermetallic compounds as advanced interconnect materials

L Chen, S Kumar, M Yahagi, D Ando, Y Sutou… - Journal of Applied …, 2021 - pubs.aip.org
Intermetallic compounds have been proposed as potential interconnect materials for
advanced semiconductor devices. This study reports the interdiffusion reliability and …

Grain-boundary/interface structures and scatterings of ruthenium and molybdenum metallization for low-resistance interconnects

YL Chen, YY Fang, MY Lu, PY Keng, SY Chang - Applied Surface Science, 2023 - Elsevier
Ruthenium and molybdenum are of great potential to replace copper for use as the next-
generation interconnect metallization. Important parameters including their intrinsic …

Resistivity size effect in epitaxial Rh (001) and Rh (111) layers

A Jog, T Zhou, D Gall - IEEE Transactions on Electron Devices, 2020 - ieeexplore.ieee.org
Rh (001) and Rh (111) layers with thickness d= 8-181 nm are sputter deposited onto MgO
(001) and Al2O3 (112̅0) substrates and their resistivity ρ measured in situ and ex situ at …

Influence of suppressing additive malachite green on superconformal cobalt electrodeposition

X Ma, Y Li, P Yang, J Zhang, M An - Journal of Electroanalytical Chemistry, 2022 - Elsevier
A novel suppressor, malachite green, was used to achieve bottom-up growth of cobalt in this
work. Electrostatic potential, HOMO/LUMO of malachite green was calculated to provide an …

Sub-100 nm2 Cobalt Interconnects

S Dutta, S Beyne, A Gupta, S Kundu… - IEEE Electron …, 2018 - ieeexplore.ieee.org
Co has elicited a strong interest to replace Cu for future interconnect applications in
microelectronic circuits due to its potentially lower resistivity and better reliability at scaled …