
For FullText PDF, please login, if you are a member of IEICE,
or go to Pay Per View on menu list, if you are a nonmember of IEICE.

Application of CorrelationBased Regression Analysis for Improvement of Power Distribution Network
Shiho HAGIWARA Takumi UEZONO Takashi SATO Kazuya MASU
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E91A
No.4
pp.951956 Publication Date: 2008/04/01
Online ISSN: 17451337
DOI: 10.1093/ietfec/e91a.4.951
Print ISSN: 09168508 Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa) Category: Keyword: voltage drop analysis, power distribution network, correlation coefficient, multiple regression,
Full Text: PDF(414.1KB)>>
Summary:
Stochastic approaches for effective power distribution network optimization are proposed. Considering node voltages obtained using dynamic voltage drop analysis as sample variables, multivariate regression is conducted to optimize clock timing metrics, such as clock skew or jitter. Aggregate correlation coefficient (ACC) which quantifies connectivity between different chip regions is defined in order to find a possible insufficiency in wire connections of a power distribution network. Based on the ACC, we also propose a procedure using linear regression to find the most effective region for improving clock timing metrics. By using the proposed procedure, effective fixing point were obtained two orders faster than by using brute force circuit simulation.

