Multi-sided variations for creating integrated circuits

US10346569B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Robert J. Allen · South Harwich, US
• Nathan C. Buck · Underhill, US
• Eric A. Foreman · Saint Albans, US
• Jeffrey G. Hemmett · South Burlington, US
• Kerim Kalafala · Rhinebeck, US
• Gregory M. Schaeffer · Poughkeepsie, US
• Stephen G. Shuma · Underhill, US
• Debjit Sinha · Wappingers Falls, US
• Natesan Venkateswaran · Hopewell Junction, US
• Vladimir Zolotov · Putnam Valley, US

Key dates

• Filing date: Dec 22, 2017
• Grant date: Jul 9, 2019
• Expiry date: Dec 22, 2037

Classification

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

Abstract

Creating by a computer an integrated circuit with non-linear variations, the computer identifies an integrated circuit design; identifies a timing model associated with the identified integrated circuit design; defines one or more static single sided variables; defines one or more regions of the defined one or more static single sided variables that are treated linearly; defines one or more multi-sided variables based on the defined one or more regions of the defined one or more static single sided variables; identifies one or more timing paths within the identified integrated circuit design; performs a statistical static timing analysis on the identified timing model for the identified one or more timing paths within the identified integrated circuit design utilizing the defined one or more multi-sided variables; provides one or more timing quantities that project within a multi-parameter space based on the performed statistical static timing analysis.