Characterization of dielectric properties and conductivity in encapsulation materials with high insulating filler contents

The properties of different molding-compound materials with high filler contents have been investigated in order to assess their electrical properties. The experimental part of the present work has been focused on dielectric spectroscopy and steady-state conduction measurements. The results have bee...

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Bibliographic Details
Published in:IEEE transactions on dielectrics and electrical insulation 2018-12, Vol.25 (6), p.2421-2428
Main Authors: Cornigli, Davide, Reggiani, Susanna, Gnudi, Antonio, Gnani, Elena, Baccarani, Giorgio, Fabiani, Davide, Varghese, Dhanoop, Tuncer, Enis, Krishnan, Srikanth, Nguyen, Luu
Format: Article
Language:English
Subjects:
dielectric polarization
Dielectric properties
Electric fields
Electrical properties
Electrical resistivity
epoxy resins
spectroscopy
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Summary:The properties of different molding-compound materials with high filler contents have been investigated in order to assess their electrical properties. The experimental part of the present work has been focused on dielectric spectroscopy and steady-state conduction measurements. The results have been used to investigate the electrical properties of the materials at different frequencies, temperatures and electric fields. Differences in the relaxation kinetics with increasing filler content have been found, which can be ascribed to the larger interface regions between the filler particles. In addition, the extracted conductivities show a hopping transport and different activation energies on the temperature range from 20 °C to 190 °C.
ISSN:1070-9878
1558-4135
DOI:10.1109/TDEI.2018.007377