Simultaneous area minimization and decaps insertion for power delivery network using adjoint sensitivity analysis with IEKS method

Pei Yu Huang*, Yu-Min Lee, Jeng Liang Tsai, Charlie Chung Ping Chen

*Corresponding author for this work

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

1 Scopus citations

Abstract

The soaring clocking frequency and integration density demand robust and stable power delivery to support tens of millions of transistor switching. In this paper, we consider the problem of minimizing the area of wires and decoupling capacitors (decaps) for a power delivery network, subject to the limit on integral of voltage drops. First, we derive the gradients of constraint function without Tellegen's theorem. This greatly simplifies the discuss of adjoint sensitivity analysis. Then, we apply the IEKS method to speed up the sensitivity analysis over 3 times. Finally, this efficient analyzer is incorporated with the state-of-the-art nonlinear programming package, SNOPT, to perform the optimization. Extensive experimental results show that the proposed method can work efficiently for large power delivery networks.

Original languageEnglish
Title of host publicationISCAS 2006
Subtitle of host publication2006 IEEE International Symposium on Circuits and Systems, Proceedings
Pages1291-1294
Number of pages4
StatePublished - 1 Dec 2006
EventISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece
Duration: 21 May 200624 May 2006

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

ConferenceISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
CountryGreece
CityKos
Period21/05/0624/05/06

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