Partial parameters and projection thereof included within statistical timing analysis

US10970448B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Brian M. Dreibelbis · Underhill, US
• John P. Dubuque · Jericho, US
• Eric A. Foreman · Saint Albans, US
• Jeffrey G. Hemmett · South Burlington, US
• Lansing D. Pickup · Raleigh, US
• Natesan Venkateswaran · Hopewell Junction, US
• Chandramouli Visweswariah · Croton-on-Hudson, US
• Vladimir Zolotov · Putnam Valley, US

Key dates

• Filing date: Jul 18, 2019
• Grant date: Apr 6, 2021
• Expiry date: Jul 18, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2119/12
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.