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. 25, 2014
Filed:
Jan. 02, 2013
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Manikandan Viswanath, South Burlington, VT (US);
Samuel I. Ward, Austin, TX (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
Spare cells are inserted in a region of an integrated circuit design based on a logic complexity of the region. The logic complexity can be computed based on the number of reachable states of digital logic in the region, and can be correlated to a desired spare cell insertion rate which is then compared to the actual spare cell utilization in the region. The target spare cell rate can further based on logic complexity values for neighboring regions with a proximity penalty.