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 …

Experimental and computational studies on octyl hydroxamic acid as an environmentally friendly inhibitor of cobalt chemical mechanical polishing

H Wang, L Hu, G Cao, R Xia, J Cao… - ACS Applied Materials …, 2022 - ACS Publications
Octyl hydroxamic acid (OHA) was investigated as an inhibitor in H2O2-based alkaline silica
dispersions for the polishing of cobalt (Co) films for interconnect applications. A combination …

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 …

Atomic layer deposition of transition metal films and nanostructures for electronic and catalytic applications

JW Maina, A Merenda, M Weber… - Critical Reviews in …, 2021 - Taylor & Francis
Atomic layer deposition (ALD) has emerged as the technique of choice in the
microelectronics industry, owing to its self-limiting nature, that allows conformal film …

CMOS reliability from past to future: A survey of requirements, trends, and prediction methods

I Hill, P Chanawala, R Singh… - … on Device and …, 2021 - ieeexplore.ieee.org
Developments in IC fabrication, emerging high-reliability markets, and government
regulations indicate potential for significant shifts in how reliability fits within IC development …

Ammonium persulfate and potassium oleate containing silica dispersions for chemical mechanical polishing for cobalt interconnect applications

CK Ranaweera, NK Baradanahalli… - ECS Journal of Solid …, 2018 - iopscience.iop.org
We investigated the suitability of ammonium persulfate (APS) and potassium oleate (PO)
containing silica dispersions for polishing Co interconnects based on removal and …

Finite size effects in highly scaled ruthenium interconnects

S Dutta, K Moors, M Vandemaele… - IEEE Electron Device …, 2018 - ieeexplore.ieee.org
Ru has been considered a candidate to replace Cu-based interconnects in VLSI circuits.
Here, a methodology is proposed to predict the resistivity of (Ru) interconnects. First, the …

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 …

The role of carboxylic acids on nanoparticle removal in post CMP cleaning process for cobalt interconnects

L Zhang, X Lu, AA Busnaina - Materials Chemistry and Physics, 2022 - Elsevier
As the technology node moves below 10 nm, cobalt with its low resistivity, superior adhesion
property, and wettability with copper, promises to change the conductor landscape in many …

Buried power rail integration with FinFETs for ultimate CMOS scaling

A Gupta, OV Pedreira, G Arutchelvan… - … on Electron Devices, 2020 - ieeexplore.ieee.org
Buried power rail (BPR) is a key scaling booster for CMOS extension beyond the 5-nm node.
This work demonstrates, for the first time, the integration of tungsten (W) BPR lines with Si …