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Digital signal propagation delay in a nano-circuit containing reactive and resistive elements

Arora, Vijay Kumar and Chek, Desmond Chang Yih and Hashim, Abdul Manaf (2011) Digital signal propagation delay in a nano-circuit containing reactive and resistive elements. Solid-State Electronics, 61 (1). pp. 87-92. ISSN 0038-1101

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Official URL: http://dx.doi.org/10.1016/j.sse.2011.04.004

Abstract

The transient switching delay in a micro/nano-scale circuit containing resistive and reactive elements are sternly affected by the surge in the resistance arising from sub-linear current-voltage (I-V) characteristics limited by the velocity and current saturation. The saturation arises due to the realignment of randomly oriented velocity vectors to the unidirectional streamlined ones in a high electric field when voltage applied across a resistor exceeds its decreasing critical value with reduced channel length. The frequency response f = 1/2πτt is affected by a transit time delay τt is lower than that predicted from the application of Ohm's law. The resistance surge dramatically boosts the RC time constant and switching delay and attenuates the L/R time constant and switching delay.

Item Type:Article
Uncontrolled Keywords:propagation delay, RC time constant, resistance surge, transconductance, transistor frequency, transit-time delay
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:28963
Deposited By: Yanti Mohd Shah
Deposited On:06 Dec 2012 08:31
Last Modified:05 Mar 2019 02:54

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