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:
Feb. 05, 2019
Filed:
Aug. 18, 2017
Cadence Design Systems, Inc., San Jose, CA (US);
Amin Farshidi, Austin, TX (US);
Zhuo Li, Austin, TX (US);
Charles Jay Alpert, Cedar Park, TX (US);
William Robert Reece, Over, GB;
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
Systems, methods, media, and other such embodiments described herein relate to trimming cell lists prior to generation of a routing tree for a circuit design. One embodiment involves accessing a cell library including cell data and a cell list for a plurality of cells. Specialized delay cells are removed from the cell list, and remaining cells are analyzed to identify a set of cell characteristics. Cells are then trimmed from the cell list based on comparisons between the cell characteristics of the remaining cells. If certain cells are sufficiently similar, secondary characteristics can be used to further trim the cell list. The trimmed cell list can then be used to generate a routing tree for the circuit design according to associated design criteria.