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Equalization of interconnect propagation delay with negative group delay active circuits

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3 Author(s)
Ravelo, B. ; LEST - UMR CNRS 6165, Brest ; Perennec, A. ; Le Roy, M.

In this paper, we propose a technique to compensate the propagation delay and losses in VLSI interconnects by using negative group delay (NGD) active circuits. This study uses the RLC models of interconnect lines currently considered in VLSI circuits. The circuit proposed here is based on a cell consisting of a Field Effect Transistor (FET) in parallel with a series RL passive network. We also describe the synthesis method to achieve simultaneousely a significant negative group delay and gain. Simulations allow us to first verify the performance of the NGD circuit and also show a restoration of the distorted signal shape as well as a reduction of propagation delay.

Published in:

Signal Propagation on Interconnects, 2007. SPI 2007. IEEE Workshop on

Date of Conference:

13-16 May 2007

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