Interconnect metals beyond copper: Reliability challenges and opportunities

K Croes, C Adelmann, CJ Wilson… - 2018 IEEE …, 2018 - ieeexplore.ieee.org
Reliability challenges of candidate metal systems to replace traditional Cu wiring in future
interconnects are discussed. From a reliability perspective, a key opportunity is …

On-chip interconnect conductor materials for end-of-roadmap technology nodes

AA Vyas, C Zhou, CY Yang - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
A comprehensive review of challenges and potential solutions associated with the impact of
downscaling of integrated circuit (IC) feature sizes on on-chip interconnect materials is …

Vapor-deposited zeolitic imidazolate frameworks as gap-filling ultra-low-k dielectrics

M Krishtab, I Stassen, T Stassin, AJ Cruz… - Nature …, 2019 - nature.com
The performance of modern chips is strongly related to the multi-layer interconnect structure
that interfaces the semiconductor layer with the outside world. The resulting demand to …

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 …

Sputter processing

AH Simon - Handbook of thin film deposition, 2025 - Elsevier
Sputter deposition describes the process of depositing material from a target onto a sample
using ionized atoms in a vacuum environment. By accelerating ionized atoms through a …

Highly scaled ruthenium interconnects

S Dutta, S Kundu, A Gupta, G Jamieson… - IEEE Electron …, 2017 - ieeexplore.ieee.org
Ruthenium has emerged as a promising candidate to substitute Cu as the interconnect
metallization in future technology nodes. Here, we demonstrate area scaling of Ru wires …

First-principles investigation of thickness-dependent electrical resistivity for low-dimensional interconnects

B Van Troeye, K Sankaran, Z Tokei, C Adelmann… - Physical Review B, 2023 - APS
The relentless miniaturization of transistors drives the search for alternative metals to copper
for low-dimension interconnects. Indeed, some elementary metals, like ruthenium, become …

Ultrathin Metal Films with Low Resistivity via Atomic Layer Deposition: Process Pressure Effect on Initial Growth Behavior of Ru Films

NG Kang, MJ Ha, JH Ahn - Chemistry of Materials, 2024 - ACS Publications
Because semiconductor devices have become ultraminiaturized, the degradation of
conductivity due to the resistivity size effect of metal thin films is an unavoidable problem …

Future on-chip interconnect metallization and electromigration

CK Hu, J Kelly, H Huang, K Motoyama… - 2018 IEEE …, 2018 - ieeexplore.ieee.org
Electromigration and resistivity of Cu, Co and Ru on-chip interconnections have been
investigated. Non-linered Co and Ru interconnects can have better interconnect resistance …

Recent progress and challenges regarding carbon nanotube on-chip interconnects

B Xu, R Chen, J Zhou, J Liang - Micromachines, 2022 - mdpi.com
Along with deep scaling transistors and complex electronics information exchange networks,
very-large-scale-integrated (VLSI) circuits require high performance and ultra-low power …