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Clock skew reduction by self-compensating manufacturing variability with on-chip sensors

Published: 16 May 2010 Publication History

Abstract

This paper presents a self-compensation scheme of manufacturing variability for clock skew reduction. In the proposed scheme, a CDN with embedded variability sensors tunes variable clock drivers for canceling the clock skew induced by manufacturing variability. We apply the proposed scheme for a mesh-style CDN in a 65nm technology and evaluate the deskewing effect as a function of the sensor performance. Experimental results show that the skew can be reduced by over 70% and the correlation coefficient between estimated and actual variabilities, which represents the sensor performance, should be more than 0.3 for skew reduction.

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  • (2011)Adaptive performance compensation with on-chip variation monitoring2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS)10.1109/MWSCAS.2011.6026381(1-4)Online publication date: Aug-2011

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  1. Clock skew reduction by self-compensating manufacturing variability with on-chip sensors

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      cover image ACM Conferences
      GLSVLSI '10: Proceedings of the 20th symposium on Great lakes symposium on VLSI
      May 2010
      502 pages
      ISBN:9781450300124
      DOI:10.1145/1785481
      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: 16 May 2010

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      Author Tags

      1. clock distribution
      2. manufacturing variability
      3. on-chip sensors
      4. self-compensation

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      May 16 - 18, 2010
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      • (2011)Adaptive performance compensation with on-chip variation monitoring2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS)10.1109/MWSCAS.2011.6026381(1-4)Online publication date: Aug-2011

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