Vertical Etching of Ru Electrodes Using the O2/Cl2 System

Abstract:

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In this study, the etching characteristics of ruthenium (Ru) electrode using O2/Cl2 helicon plasmas were investigated. The variation of Ru etch rate, Ru to SiO2 etch selectivity and Ru etching slope with varied process variables were scrutinized. Not only the gas chemistry affected the Ru etching, but also the higher bias power and argon (Ar) bombardment helped to faciliate the Ru etching.

Info:

Periodical:

Materials Science Forum (Volumes 449-452)

Edited by:

S.-G. Kang and T. Kobayashi

Pages:

357-360

DOI:

10.4028/www.scientific.net/MSF.449-452.357

Citation:

H. W. Kim "Vertical Etching of Ru Electrodes Using the O2/Cl2 System", Materials Science Forum, Vols. 449-452, pp. 357-360, 2004

Online since:

March 2004

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$35.00

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