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Effect of pH and Ionic Strength on Chemical Mechanical Polishing of Tantalum
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Publications
Effect of pH and Ionic Strength on Chemical Mechanical Polishing of Tantalum
Effect of pH and Ionic Strength on Chemical Mechanical Polishing of Tantalum
SR
S. Ramarajan
S. Ramarajan
YL
Y. Li
Y. Li
MH
M. Hariharaputhiran
M. Hariharaputhiran
YH
Y. ‐S. Her
Y. ‐S. Her
S. V. Babu
S. V. Babu
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1 January 1999
journal article
Published by
The Electrochemical Society
in
Electrochemical and Solid-State Letters
Vol. 3
(5)
,
232-234
https://doi.org/10.1149/1.1391010
Abstract
Chemical mechanical polishing of tantalum was performed using alumina and silica particles dispersed in deionized water as a function of and ionic strength. The highest polish rate was obtained at values of 3.5 and 8.0 in silica and alumina slurties, respectively. The variation in the polish rate with is due primarily to variations in electrostatic interactions between the particles and the tantalum surface and the effect of changes in average particle size appears to be small. This is confirmed by the measured changes in tantalum polish rate due to changes in ionic strength of the slurry. ©2000 The Electrochemical Society
Keywords
CHEMICAL MECHANICAL POLISHING
IONIC STRENGTH
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Cited by 42 articles