Thickness dependence of elastic modulus and hardness of on-wafer low-k ultrathin polytetrafluoroethylene films

J. Wang, F. G. Shi, T. G. Nieh, B. Zhao, M. R. Brongo, S. Qu, T. Rosenmayer

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

62 Citations (Scopus)

Abstract

The elastic modulus and hardness of on-wafer low-k dielectric polytetrafluoroethylene films in the thickness range of 48.1 to 1141 nm were studied using the dynamic contact module (DCM) in frequency-specific depth-sensing indentation. Results indicate that the chemical-mechanical polishing (CMP) characteristics of polytetrafluoroethylene films are thickness dependent.
Original languageEnglish
Pages (from-to)687-694
JournalScripta Materialia
Volume42
Issue number7
DOIs
Publication statusPublished - 17 Mar 2000
Externally publishedYes

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