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The preparation and properties of BaTiO3-carbon nanotube/polyimide three-phase composites by In-situ polymerization for flexible package circuit

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4 Author(s)
Bo Zhang ; Inst. of Microelectron., Beijing, China ; Wen Yin ; Yuan Lu ; Lixi Wan

High-technology fields require new high-dielectric-permittivity materials. A three-phase composite with multiwall carbon nanotube (MWNT) and BaTiO3 particles embedded into polyimide (PI) substrates by in-situ polymerization. The BaTiO3-MWNT/PI composite with low dielectric loss displayed relatively high dielectric constant and good flexibility due to the low concentrations of MWNT and BaTiO3. The results can be explained that BaTiO3 would be beneficial for the formation of conductive network of MWNT in PI matrix. A new polyimide nanocomposite films as flexible capacitor packaging materials have been successfully developed with low-frequency dielectric constant of 16.8, and the dielectric loss of 0.057.

Published in:

Electronic Packaging Technology and High Density Packaging (ICEPT-HDP), 2012 13th International Conference on

Date of Conference:

13-16 Aug. 2012