Slurry components in metal chemical mechanical planarization (CMP) process: A review

D Lee, H Lee, H Jeong - International Journal of Precision Engineering …, 2016 - Springer
Chemical mechanical planarization (CMP) is a wet polishing technique employed to smooth
the surface of various materials using a combination of chemical and mechanical forces to …

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 …

Citric acid as a complexing agent in chemical mechanical polishing slurries for cobalt films for interconnect applications

R Popuri, KV Sagi, SR Alety, BC Peethala… - ECS Journal of Solid …, 2017 - iopscience.iop.org
A colloidal silica-based slurry (3–10 wt%) containing H 2 O 2 (1 wt%) and citric acid (50 mM)
was found to polish chemical vapor-deposited (CVD) cobalt (Co) films with removal rates …

Potassium tartrate as a complexing agent for chemical mechanical polishing of Cu/Co/TaN barrier liner stack in H2O2 based alkaline slurries

L Hu, G Pan, C Li, X Zhang, J Liu, P He… - Materials Science in …, 2020 - Elsevier
The chemical mechanical polishing (CMP) of Cu/Co/TaN barrier liner stack of the sub-14nm
devices was associated with several challenges, one of which was to screen out the desired …

Potassium oleate as a dissolution and corrosion inhibitor during chemical mechanical planarization of chemical vapor deposited Co films for interconnect applications

R Popuri, H Amanapu, CK Ranaweera… - ECS Journal of Solid …, 2017 - iopscience.iop.org
4 Triazole (TAZ), N-lauroylsarcosine sodium salt (NLS) and potassium oleate (PO) were
tested as passivating additives to previously developed H 2 O 2 and citric acid-based silica …

Effect of ethylenediamine on CMP performance of ruthenium in H 2 O 2-based slurries

Y Xu, T Ma, Y Liu, B Tan, S Zhang, Y Wang, G Song - RSC advances, 2022 - pubs.rsc.org
With the aggressive scaling of integrated circuits, ruthenium has been proposed as the next
generation barrier material to replace the conventional bilayer of tantalum and tantalum …

Investigation on inhibition of ruthenium corrosion by glycine in alkaline sodium hypochlorite based solution

S Shao, B Wu, P Wang, P He, XP Qu - Applied Surface Science, 2020 - Elsevier
Removal of Ru by etching in alkaline sodium hypochlorite (NaClO) based solution is carried
out. The glycine on the corrosion of Ru in NaClO based solution is systematically …

Post-CMP cleaning solutions for the removal of organic contaminants with reduced galvanic corrosion at copper/cobalt interface for advanced Cu interconnect …

J Seo, SH Vegi, SV Babu - ECS Journal of Solid State Science …, 2019 - iopscience.iop.org
It has been difficult to remove BTA-related organic residues (BTA, Cu-BTA, and Co-BTA
complexes) and silica abrasives from various surfaces during post Cu-CMP cleaning when …

The effect of hydroxyethylidene diphosphonic acid on the chemical mechanical polishing of cobalt in H2O2 based alkaline slurries

L Hu, G Pan, Y Xu, H Wang, Y Zhang… - ECS Journal of Solid …, 2020 - iopscience.iop.org
Cobalt (Co) has caused much interest as an attractive liner material for Cu for the sub-14nm
devices. In this paper, the synergetic effect of H 2 O 2 and hydroxyethylidene diphosphonic …

Electron Scattering at Ru–TiN–Ru Interface Stacks

P Shen, D Gall - IEEE Transactions on Electron Devices, 2024 - ieeexplore.ieee.org
Electron transport across Ru-TiN–Ru interfaces is quantified using multilayers containing
five 10-nm-thick Ru (0001) layers separated by TiN interlayers with nominal thicknesses …