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 …

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 …

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 scaling in CuTi determined from transport measurements and first-principles simulations

M Zhang, S Kumar, R Sundararaman… - Journal of Applied …, 2023 - pubs.aip.org
The resistivity size effect in the ordered intermetallic CuTi compound is quantified using in
situ and ex situ thin film resistivity ρ measurements at 295 and 77 K, and density functional …

Dominant energy carrier transitions and thermal anisotropy in epitaxial iridium thin films

C Perez, A Jog, H Kwon, D Gall… - Advanced Functional …, 2022 - Wiley Online Library
High aspect ratio metal nanostructures are commonly found in a broad range of applications
such as electronic compute structures and sensing. The self‐heating and elevated …

Resistivity Scaling in Epitaxial CuAl2(001) Layers

M Zhang, D Gall - IEEE Transactions on Electron Devices, 2022 - ieeexplore.ieee.org
Epitaxial CuAl 2 (001) layers with thickness= 10.2–141 nm are deposited by co-sputtering
onto MgO (001) substrates at 300° C and their resistivity is measured in situ to quantify the …

Resistivity size effect in epitaxial VNi2 layers

M Zhang, D Gall - Journal of Applied Physics, 2023 - pubs.aip.org
Epitaxial VNi 2 layers are deposited onto MgO (001) and their resistivity ρ measured as a
function of layer thickness d= 10.5–138 nm to quantify the resistivity size effect. The layers …

Reliability and resistance projections for rhodium and iridium interconnects from first-principles

NA Lanzillo, DC Edelstein - Journal of Vacuum Science & Technology …, 2022 - pubs.aip.org
We apply first-principles simulations to evaluate several properties related to the resistance
and reliability of rhodium and iridium interconnects. We find that both Rh and Ir have …

Electron scattering at surfaces and grain boundaries in Rh layers

A Jog, D Gall - IEEE Transactions on Electron Devices, 2022 - ieeexplore.ieee.org
The resistivity size effect in Rh is investigated by quantifying electron scattering at surfaces
and grain boundaries in polycrystalline Rh layers with thickness–261 nm. Sputter deposition …

Resistivity size effect in epitaxial face-centered cubic Co (001) layers

A Thakral, A Jog, D Gall - Applied Physics Letters, 2024 - pubs.aip.org
Metastable face-centered cubic (fcc) Co layers are deposited by reactive magnetron
sputtering in 5 mTorr N 2 at 400 C followed by vacuum annealing at 500 C. The resulting …