Title

Applicability of dynamic mechanical analysis for CMP polyurethane pad studies

Authors

Authors

H. Lu; Y. Obeng;K. A. Richardson

Comments

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Abbreviated Journal Title

Mater. Charact.

Keywords

dynamic mechanical analysis; chemical-mechanical polishing; polyurethane; Materials Science, Multidisciplinary; Metallurgy & Metallurgical; Engineering; Materials Science, Characterization & Testing

Abstract

Dynamic mechanical analysis (DMA) was used to obtain dynamic moduli of a standard industrial polishing pad before and after chemical-mechanical polishing (CMP). The multiple transitions found in the tan delta curve of the stacked pad are associated with the components present in the stacked pad. The effective dynamic storage modulus of an IC1000/Suba IV stacked pad showed a correlation with the elasticity of the individual pad materials. These dynamic studies provide evidence that in situ mechanical modifications play a greater role in pad material degradation than those due to chemical modifications. (C) 2003 Published by Elsevier Science Inc.

Journal Title

Materials Characterization

Volume

49

Issue/Number

2

Publication Date

1-1-2002

Document Type

Article

Language

English

First Page

177

Last Page

186

WOS Identifier

WOS:000181580700012

ISSN

1044-5803

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