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    Critical adhesion energy determination of low K dielectrics using four point bending

    Author
    Kulkarni, Ameet
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    174963_thesis.pdf (1.216Mb)
    Other Contributors
    Cale, Timothy S.;
    Date Issued
    2006-05
    Subject
    Chemical engineering
    Degree
    MS;
    Terms of Use
    This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.;
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    URI
    https://hdl.handle.net/20.500.13015/1358
    Abstract
    The critical adhesion energies of BCB/PECVD SiO2, BCB (with AP)/Si, porous MSQ/Ta and PaN pore sealed MSQ/Ta were determined using four point bending. The interfacial adhesion energy of BCB/PECVD SiO2 is estimated to be 5 ± 1.7 Jm-2, BCB (with adhesion promoter)/Si was 21 ± 5 Jm-2. The adhesion appeared to strongly depend on sample width for small widths (2.5-5 mm). Wider samples were prepared (5-11 mm) and there was less sample width dependence for this set. The adhesion energy of wider samples was found to be equal to that of the thin samples but the standard deviation is lower (1 Jm-2). The Gc of pooous MSQ/Ta is estimated to be 1.3 Jm-2 ± 0.2 Jm-2 and the Gc of Parylene-N pore sealed MSQ/Ta is estimated to be 2.2 Jm-2 ± 0.6 Jm-2. The pore sealant increases the adhesion of MSQ to Ta, but not high as reported in literature (Gc = 10 Jm-2). there is a Gc dependence on displacement rate for pore sealed MSQ/Ta. This could be due to higher plastic dissipation energy at higher displacement rates.;
    Description
    May 2006; School of Engineering
    Department
    Dept. of Chemical Engineering;
    Publisher
    Rensselaer Polytechnic Institute, Troy, NY
    Relationships
    Rensselaer Theses and Dissertations Online Collection;
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    Restricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.;
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