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Simple Analytical Formulas for Estimating IR-Drops in an Early Design Stage Kazuyuki OOYA Yuji TAKASHIMA Atsushi KUROKAWA Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E93-A No.9 pp.1585-1593 Publication Date: 2010/09/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E93.A.1585 Print ISSN: 0916-8508 Type of Manuscript: PAPER Category: VLSI Design Technology and CAD Keyword: IR-drop, power-grid, power-ring, decoupling capacitance, response surface method, Full Text: PDF(809.6KB)>>
Summary: In an early design stage of LSI designing, finding out the proper parameters for power planning is important from the viewpoint of cost minimization. In this paper, we present simple analytical formulas which are used to obtain the initial parameters close to the proper power distribution networks in the early design stage. The formulas for estimating static and pseudo-dynamic voltage drops (IR-drops) are derived by the response surface method (RSM). By making the formulas once, they can be used for the general power planning for the power-grid style in any process technology. | ||||||||||
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