Comparative analysis of clock distribution networks for TSV-based 3D IC designs

Mir Mohammad Navidi, Gyung Su Byun

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

3D integration enables the stacking of multiple devices directly on the top of a microprocessor, thereby significantly improving both power efficiency and latency between the devices. For 3D synchronous digital systems, the clock distribution/generation network (CDN) circuit and architecture is one of the key design considerations. However, previous studies have examined the performance benefits by considering only 2D CDN techniques and organizations such as the size reduction of the clock trees and better algorithms for the CDN flip-flop. In this work, we explore more aggressive 3D CDN circuits and structure that improve both energy efficiency and latency by 3D stacking, as well as the additional reduction of CDN power supply. Our results show that with the combination of a novel 3D clock receiver and 3D CDN stacking organization, we can achieve a 2.29 times energy-efficiency improvement over conventional H-tree structures in 45nm CMOS. Our 3D TSV and on-chip CDN channels are based on the highly accurate 3D electromagnetic (EM) solver (HFSS) and 2D EM Momentum models, respectively.

Original languageEnglish
Title of host publicationProceedings of the 15th International Symposium on Quality Electronic Design, ISQED 2014
PublisherIEEE Computer Society
Pages184-188
Number of pages5
ISBN (Print)9781479939466
DOIs
StatePublished - 2014
Externally publishedYes
Event15th International Symposium on Quality Electronic Design, ISQED 2014 - Santa Clara, CA, United States
Duration: 3 Mar 20145 Mar 2014

Publication series

NameProceedings - International Symposium on Quality Electronic Design, ISQED
ISSN (Print)1948-3287
ISSN (Electronic)1948-3295

Conference

Conference15th International Symposium on Quality Electronic Design, ISQED 2014
Country/TerritoryUnited States
CitySanta Clara, CA
Period3/03/145/03/14

Keywords

  • 3D clock modeling
  • 3D clock networks
  • 3D integration
  • Low power
  • Through silicon via (TSV)

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