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Proceedings Paper

A physical understanding of the noise performance of MOS transistors for wireless and lightwave applications in the giga-bit regime
Author(s): R. P. Jindal
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Paper Abstract

Functional requirements for modern narrow-band and wide-band wireless and lightwave communication systems place stringent demands on speed and noise behavior of circuits and devices used to design them. MOS technology in the nanometer regime continues to be the low-cost high-performance workhorse driving innovations for these applications. In this paper, we trace the developments in the modeling of noise in MOS transistors as the device channel lengths shrink by a factor or a thousand from tens of micrometers to tens of nanometers. The impact of scaling on classical noise mechanisms is explained. Also, generation of new noise sources as a result of scaling are also described. This leads to a better physical understanding of the noise behavior of these devices. Methods of eliminating some of these noise sources by suitable choice of materials and modifications in device structure are explained. Application of this understanding to the practical design and layout of low-noise high-performance circuits is illustrated. As a result, the noise performance of MOS devices has improved by almost an order of magnitude making them an ideal choice for low-noise communication electronics design. Research continues as the channel lengths shrink further.

Paper Details

Date Published: 23 May 2005
PDF: 13 pages
Proc. SPIE 5844, Noise in Devices and Circuits III, (23 May 2005); doi: 10.1117/12.609965
Show Author Affiliations
R. P. Jindal, Univ. of Louisiana at Lafayette (United States)

Published in SPIE Proceedings Vol. 5844:
Noise in Devices and Circuits III
Alexander A. Balandin; Francois Danneville; M. Jamal Deen; Daniel M. Fleetwood, Editor(s)

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