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Adhesion of Copper to Teflon ® poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA) Surfaces Modified by Vacuum UV Photo-oxidation Downstream from Argon Microwave Plasma

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Abstract

Good practical adhesion of sputter-deposited Cu is achieved to poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA) surfaces at short treatment times of vacuum UV (VUV) photo-oxidation downstream from Ar microwave (MW) plasma. Factors contributing to the adhesion include: (1) an improvement in wettability as observed by water contact angle measurements; (2) surface roughening; (3) defluorination of the surface; (4) cross-linking at the surface and (5) incorporation of oxygen as CF-O-CF2, CF2-O-CF2 and CF-O-CnF2n+1 moieties. With long treatment times, a cohesive failure occurred within the modified PFA and not at the Cu-PFA interface due to extensive chain scission weakening its mechanical properties.

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Authors and Affiliations

  1. Department of Chemistry, Center for Materials Science and Engineering, Rochester Institute of Technology, Rochester, NY, 14623, U.S.A.

    W. Dasilva, A. Entenberg, B. Kahn, T. Debies & G. A. Takacs

  2. Department of Physics, RIT, Rochester, NY, 14623, U.S.A.

    A. Entenberg

  3. Department of Imaging & Photographic Technology, RIT, Rochester, NY, 14623, U.S.A.

    B. Kahn

  4. Xerox Corporation, Webster, NY, 14580, U.S.A.

    T. Debies

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  1. W. Dasilva
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  2. A. Entenberg
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  3. B. Kahn
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  4. T. Debies
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  5. G. A. Takacs
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Dasilva, W., Entenberg, A., Kahn, B. et al. Adhesion of Copper to Teflon ® poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA) Surfaces Modified by Vacuum UV Photo-oxidation Downstream from Argon Microwave Plasma. MRS Online Proceedings Library 851, 511–516 (2004). https://doi.org/10.1557/PROC-851-NN9.2

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  • DOI: https://doi.org/10.1557/PROC-851-NN9.2

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