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:
Mar. 09, 2021
Filed:
Sep. 10, 2019
International Business Machines Corporation, Armonk, NY (US);
Jesse Surprise, Highland, NY (US);
Gerald Strevig, III, Cedar Park, TX (US);
Shawn Kollesar, Poughkeepsie, NY (US);
Chris Aaron Cavitt, Poughkeepsie, NY (US);
Chaobo Li, Wappingers Falls, NY (US);
Dina Hamid, Bethesda, MD (US);
Christopher Berry, Hudson, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Methods, systems and computer program products for improved metal fill shape removal from selected nets are provided. Aspects include determining a first set and second set of timing characteristics of a first and second circuit design, respectively. The first circuit design does not include metal fill shapes around a plurality of nets, whereas the second circuit design does include metal fill shapes around a plurality of nets. Aspects also include identifying a set of candidate nets based on a comparison of the first set of timing characteristics to the second set of timing characteristics. The set of candidate nets are nets that are candidates for metal fill shape removal. Aspects include generating a third circuit design by removing one or more metal fill shapes positioned around each net of the set of candidate nets that are positioned within a radius of removal.