Improved RF Isolation Using Carbon Nanotube Fence-Wall for 3-D Integrated Circuits and Packaging

We demonstrate a proof of concept to implement carbon nanotubes (CNT) in radio frequency (RF) integrated circuits to achieve improved electromagnetic isolation. A densely packed CNT fence-wall was designed on a typical via-fenced guard structure, to create RF isolation between two transmission lines...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2015-06, Vol.25 (6), p.355-357
Main Authors: Dunlin Tan, Jong Jen Yu, Hee, David, Hock Siong Lim, Baillargeat, Dominique, Eudeline, Philippe, Beng Kang Tay
Format: Article
Language:English
Subjects:
Backward coupling
Carbon nanotubes
carbon nanotubes (CNT)
Couplings
Engineering Sciences
forward coupling
Metals
Micro and nanotechnologies
Microelectronics
Microwave circuits
Radio frequency
RF circuits
RF isolation
RF nano-packaging
Substrates
via fencing
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Summary:We demonstrate a proof of concept to implement carbon nanotubes (CNT) in radio frequency (RF) integrated circuits to achieve improved electromagnetic isolation. A densely packed CNT fence-wall was designed on a typical via-fenced guard structure, to create RF isolation between two transmission lines. Both simulations and measurements have shown to further reduce forward and backward coupling by 10 dB over current techniques in the 1-10 GHz range. Such CNT isolation scheme could be implemented in densely packed three-dimensional circuits and packages.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2015.2425546