Method and system for evaluating statistical sensitivity credit in path-based hybrid multi-corner static timing analysis

US7555740B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Nathan C. Buck · Underhill, US
• John P. Dubuque · Jericho, US
• Eric A. Foreman · Saint Albans, US
• Peter A. Habitz · South Burlington, US
• Kerim Kalafala · Rhinebeck, US
• Peihua Qi · Wappingers Falls, US
• Chandramouli Visweswariah · Croton-on-Hudson, US
• Xiaoyue Wang · Santa Clara, US

Key dates

• Filing date: Feb 27, 2007
• Grant date: Jun 30, 2009
• Expiry date: Aug 2, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F30/3312
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Methods, systems and computer program products for analyzing a timing design of an integrated circuit are disclosed. According to an embodiment, a method for analyzing a timing design of an integrated circuit comprises: providing an initial static timing analysis of the integrated circuit; selecting a static timing test with respect to a static timing test point based on the initial static timing analysis; selecting a timing path leading to the static timing test point for the static timing test; determining an integrated slack path variability for the timing path based on a joint probability distribution of at least one statistically independent parameter; and analyzing the timing design based on the integrated slack path variability.