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. 21, 2014
Filed:
Jan. 07, 2011
Eric Nequist, Monte Sereno, CA (US);
Richard Brashears, San Jose, CA (US);
Matthew A. Liberty, Lake Oswego, OR (US);
Michael C. Mcsherry, Portland, OR (US);
Eric Nequist, Monte Sereno, CA (US);
Richard Brashears, San Jose, CA (US);
Matthew A. Liberty, Lake Oswego, OR (US);
Michael C. McSherry, Portland, OR (US);
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
An improved method and system for performing extraction on an integrated circuit design is disclosed. Extraction may be performed at granularities much smaller than the entire IC design, in which a halo is used to identify a geometric volume surrounding an object of interest to identify neighboring objects and generate an electrical model. The extraction approach can be taken for Islands, Nets, as well as other granularities within the design. Re-extraction of a design can occur at granularities smaller than a net. Some approaches utilize Island-stitching to replace an island within a net. An approach is also described for improving cross-references for cross-coupled objects.