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A non-orthogonal clock distribution network and its performance evaluation in presence of process variations and inductive effects

Published: 30 April 2006 Publication History

Abstract

The evolution of VLSI chips towards larger die size, smaller feature size and faster clock speed makes the clock distribution an increasingly important issue. In this paper, we propose a new clock distribution network (CDN), namely Variant X-Tree, based on the idea of X-Architecture proposed recently for efficient wiring within VLSI chips. The Variant X-Tree CDN keeps the nice properties of equal-clock-path and symmetric structure of the typical H-tree CDN, but results in both a lower maximal clock delay and a lower clock skew than its H-tree counterpart, as verified by an extensive simulation study that incorporates simultaneously the effects of process variations and on-chip inductance.

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  1. A non-orthogonal clock distribution network and its performance evaluation in presence of process variations and inductive effects

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    cover image ACM Conferences
    GLSVLSI '06: Proceedings of the 16th ACM Great Lakes symposium on VLSI
    April 2006
    450 pages
    ISBN:1595933476
    DOI:10.1145/1127908
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 30 April 2006

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    Author Tags

    1. H-Tree
    2. X Architecture
    3. clock distribution network
    4. performance evluation
    5. variant X-Tree

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