Title :
Improved RF Isolation Using Carbon Nanotube Fence-Wall for 3-D Integrated Circuits and Packaging
Author :
Dunlin Tan ; Jong Jen Yu ; Hee, David ; Hock Siong Lim ; Baillargeat, Dominique ; Eudeline, Philippe ; Beng Kang Tay
Author_Institution :
Res. & Technol. Singapore, Singapore, Singapore
Abstract :
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.
Keywords :
UHF integrated circuits; carbon nanotubes; integrated circuit design; integrated circuit packaging; microwave integrated circuits; three-dimensional integrated circuits; 3D integrated circuit packaging; backward coupling; carbon nanotube fence-wall; densely packed CNT fence-wall; electromagnetic isolation; frequency 1 GHz to 10 GHz; improved RF isolation; overcurrent technique; radiofrequency integrated circuit; reduce forward coupling; transmission line; via-fenced guard structure; Carbon nanotubes; Couplings; Metals; Microwave circuits; Radio frequency; Substrates; Backward coupling; RF circuits; RF isolation; RF nano-packaging; carbon nanotubes (CNT); forward coupling; via fencing;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2015.2425546
