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Keywords = IR-drop (IRD)

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17 pages, 4321 KiB  
Article
Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies
by Pengcheng Huang, Chiyuan Ma and Zhenyu Wu
Symmetry 2021, 13(10), 1807; https://doi.org/10.3390/sym13101807 - 28 Sep 2021
Cited by 4 | Viewed by 4296
Abstract
IR-drop is a fundamental constraint by almost all integrated circuits (ICs) physical designs, and many iterations of timing engineer change order (ECO), IR-drop ECO, or other ECO are needed before design signoff. However, IR-drop analysis usually takes a long time and wastes so [...] Read more.
IR-drop is a fundamental constraint by almost all integrated circuits (ICs) physical designs, and many iterations of timing engineer change order (ECO), IR-drop ECO, or other ECO are needed before design signoff. However, IR-drop analysis usually takes a long time and wastes so many resources. In this work, we develop a fast dynamic IR-drop predictor based on a machine learning technique, XGBoost, and the prediction method can be applied to vector-based and vectorless IR-drop analysis simultaneously. Correlation coefficient is often used to characterize the symmetry of prediction data and golden data, and our experiments show that the prediction correlation coefficient is more than 0.96 and the average error is no more than 1.3 mV for two industry designs, which are of 2.4 million and 3.7 million instances, respectively, and that the analysis is speeded up over 4.3 times compared with the IR-drop analysis by commercial tool, Redhawk. Full article
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