On constructing low power and robust clock tree via slew budgeting

Yeh Chi Chang*, Chun Kai Wang, Hung-Ming Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

Clock skew resulted by process variation becomes more and more serious as technology shrinks. In 2010, ISPD held a high performance clock network synthesis contest; it considered supply-voltage variation and wire manufacturing variation. Previous works show that the main issue of variation induced skew is on supply-voltage variation. To trade off power and supply-voltage variation induced skew more effectively, we adapt a tree topology which use a timing model independent symmetrical tree at top level to drive the bottom level non-symmetry trees. Our method gives top tree more power budget to reduce supply-voltage variation induced skew and greedily saves power consuming in bottom level. Experimental results are evaluated from the benchmarks of ISPD contest 2010. Compared with state-of-theart cross link work, the proposed technique reduces 10% of power consumption on average and also improves the run time.

Original languageEnglish
Title of host publicationISPD'12 - Proceedings of the 2012 International Symposium on Physical Design
Pages129-135
Number of pages7
DOIs
StatePublished - 1 May 2012
Event2012 ACM International Symposium on Physical Design, ISPD'12 - Napa, CA, United States
Duration: 25 Mar 201228 May 2012

Publication series

NameProceedings of the International Symposium on Physical Design

Conference

Conference2012 ACM International Symposium on Physical Design, ISPD'12
CountryUnited States
CityNapa, CA
Period25/03/1228/05/12

Keywords

  • Clock synthesis
  • Slew

Fingerprint Dive into the research topics of 'On constructing low power and robust clock tree via slew budgeting'. Together they form a unique fingerprint.

  • Cite this

    Chang, Y. C., Wang, C. K., & Chen, H-M. (2012). On constructing low power and robust clock tree via slew budgeting. In ISPD'12 - Proceedings of the 2012 International Symposium on Physical Design (pp. 129-135). (Proceedings of the International Symposium on Physical Design). https://doi.org/10.1145/2160916.2160945