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Dielectric behaviour of epoxy and polyester laminates in moisture and electronic packaging exhalates

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Abstract

The dielectric behaviour of epoxy and polyester laminates has been studied before and after exposing the samples to moisture (relative humidity 60 to 95%) and various exhalates (HCl, HNO3, HCOOH, CH3COOH, NH3 and SO2 vapours) which are normally released by electronic packaging materials. A strong dielectric dispersion at room temperature is observed after exposing the samples to moisture and various exhalates. The dissipation factor also increases quite appreciably, the increase being more at higher exposure times. The results have been explained in terms of the ionic conductivity due to the dissociation of the exhalates. Recovery studies have also been made and it was found that the changes were reversible except in the case of HCOOH and CH3COOH, for epoxy and in the case of NH3 for polyester. These results indicate some chemical changes in these cases.

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References

  1. P. C. Arni, G. C. Cochrane andJ. D. Gray,J. Appl. Chem. 15 (1965) 305.

    Google Scholar 

  2. V. E. Rance andH. G. Cole, “Corrosion of Metals by Vapours from Organic Materials” (H.M.S.O., London, 1958).

    Google Scholar 

  3. C. E. Jowett (ed.), “Electronics and Environment” (London Business Book Limited).

  4. Martin T. Goosey (ed.) “Plastics for Electronics” (Elsevier Applied Science, London, 1985).

    Google Scholar 

  5. Leo S. Kohn, in “Epoxy Resin Technology”, edited by Paul F. Bruins, (Interscience 1968).

  6. B. Barkatakova andB. Hranickova,Technical Digest 10 (1968) 730.

    Google Scholar 

  7. Ibert Mellan (ed.), “Corrosion Resistant Materials”, 3rd Edn, (Noyes Data Corporation, New Jersey, 1976).

    Google Scholar 

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Author notes

  1. B. Sanyal

    Present address: Department of Chemical Engineering, Harcourt Butler Technological Institute, 208 002, Kanpur, India

Authors and Affiliations

  1. Department of Physics, Harcourt Butler Technological Institute, 208 002, Kanpur, India

    D. B. Singh, A. Kumar, V. P. Tayal &  B. Sanyal

Authors
  1. D. B. Singh
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  2. A. Kumar
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  3. V. P. Tayal
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  4. B. Sanyal
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Singh, D.B., Kumar, A., Tayal, V.P. et al. Dielectric behaviour of epoxy and polyester laminates in moisture and electronic packaging exhalates. J Mater Sci 23, 528–534 (1988). https://doi.org/10.1007/BF01174680

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  • DOI: https://doi.org/10.1007/BF01174680

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