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Development of original solutions for the 3D integration of RF and millimeter-wave devices based on carbon nanotubes

Abstract : The shift to higher frequencies of wireless communications is interesting for several reasons. Indeed, the increasing number of connected devices these last years has made the lower frequency bands (traditionally used) overcrowded. Furthermore, in order to increase the data rates of wireless communications(to match the ones of the fiber optics) it is necessary to increase the used frequencies. However, higher frequencies come with lower dimensions and more difficult fabrication processes, lossy behavior of the traditionally used materials, and parasitic effects that become no more negligible, etc. In this manuscript, we study thepossibilities that nanomaterials (in particular Carbon Nanotubes (CNTs)) in the domain of packaging for millimeter-wave devices. In a first chapter, we describe the physical properties of the material we use, namely bundles of vertically aligned CNTs. In the second chapter, an innovative topology of a functionnalized interposer based on CNTs is presented, and a proof of concept device is fabricated and measured. In a third chapter, the miniaturization effects due to the use of CNTs are investigated and highlighted. Finally, the contribution of CNTs in the domain of high frequency interconnects is approached.
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https://tel.archives-ouvertes.fr/tel-03618879
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Submitted on : Thursday, March 24, 2022 - 4:14:08 PM
Last modification on : Thursday, September 8, 2022 - 4:01:21 AM
Long-term archiving on: : Saturday, June 25, 2022 - 7:39:12 PM

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  • HAL Id : tel-03618879, version 1

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Joseph de Saxce. Development of original solutions for the 3D integration of RF and millimeter-wave devices based on carbon nanotubes. Micro and nanotechnologies/Microelectronics. Université de Limoges, 2022. English. ⟨NNT : 2022LIMO0015⟩. ⟨tel-03618879⟩

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