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Journal cover: Microelectronics International

Microelectronics International

ISSN: 1356-5362

Online from: 1982

Subject Area: Electrical & Electronic Engineering

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Future VLSI interconnects: optical fiber or carbon nanotube – a review


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Title:Future VLSI interconnects: optical fiber or carbon nanotube – a review
Author(s):Brajesh Kumar Kaushik, (Department of Electronics and Electrical Engineering, G.B. Pant Engineering College, Uttarakhand, India), Saurabh Goel, (Department of Electronics and Electrical Engineering, G.B. Pant Engineering College, Uttarakhand, India), Gaurav Rauthan, (Department of Electronics and Electrical Engineering, G.B. Pant Engineering College, Uttarakhand, India)
Citation:Brajesh Kumar Kaushik, Saurabh Goel, Gaurav Rauthan, (2007) "Future VLSI interconnects: optical fiber or carbon nanotube – a review", Microelectronics International, Vol. 24 Iss: 2, pp.53 - 63
Keywords:Circuits, Copper, Optical cables
Article type:General review
DOI:10.1108/13565360710745601 (Permanent URL)
Publisher:Emerald Group Publishing Limited
Abstract:

Purpose – To review and explore optical fiber and carbon nanotube (CNT) as prospective alternatives to copper in VLSI interconnections.

Design/methodology/approach – As the technology moves to deep submicron level, the interconnect width also scales down. Increasing resistivity of copper with scaling and rising demands on current density drives the need for identifying new wiring solutions. This paper explores various alternatives to copper. Metallic CNTs, optical interconnects are promising candidates that can potentially address the challenges faced by copper.

Findings – Although, the theoretical aspects proves CNTs and optical interconnect to be better alternative against copper on the ground of performance parameters such as power dissipation, switching delay, crosstalk. But copper would last for coming decades on integration basis.

Originality/value – This paper reviews the state-of-the-art in CNT interconnect and optical interconnect research; and discusses both the advantages and challenges of these emerging technologies.



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