Physical design methodology of power gating circuits for standard-cell-based design

  • Authors:
  • Hyung-Ock Kim;Youngsoo Shin;Hyuk Kim;Iksoo Eo

  • Affiliations:
  • KAIST, Daejeon, Korea;KAIST, Daejeon, Korea;Electronics and Telecommunications Research Institute (ETRI), Daejeon, Korea;Electronics and Telecommunications Research Institute (ETRI), Daejeon, Korea

  • Venue:
  • Proceedings of the 43rd annual Design Automation Conference
  • Year:
  • 2006

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Abstract

The application of power gating circuits to semicustom design based on standard-cell elements is limited due to the requirement of customizing cells that are tailored for power gating or the requirement of customizing physical design methodologies for placement and power network. We propose a new power network architecture that enables use of conventional standard-cell elements. A few custom library elements are developed wherever needed, including output interface circuits and data retention storage elements. A novel method of cs design is also described. The proposed methodology is applied to ISCAS benchmark circuits, and also to a commercial Viterbi decoder with 0.18$ mu$m CMOS technology.