The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
Jan. 27, 2015
International Business Machines Corporation, Armonk, NY (US);
James C. Gregerson, Hyde Park, NY (US);
David J. Hathaway, Underhill, VT (US);
Kerim Kalafala, Rhinebeck, NY (US);
Tsz-Mei Ko, Poughkeepsie, NY (US);
Alex Rubin, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Disclosed are a system and a method for performing a timing analysis of an integrated circuit (IC). An internal timing constraint of a logic device in a first signal pathway of a hierarchical entity in an IC design is determined based on a reference value and, if necessary, on library information. A first boundary timing constraint associated with the first signal pathway is derived based on the internal timing constraint and a second boundary timing constraint associated with the first signal pathway is derived based on the first boundary timing constraint and a target slack value for the internal timing constraint. A static timing analysis is performed using the second boundary timing constraint. Based on the analysis, a timing abstraction for the hierarchical entity is generated. A timing model for the IC design is generated using the timing abstraction and other timing abstractions for other hierarchical entities in the design.