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.

Date of Patent:
Jul. 07, 2015

Filed:

Jul. 31, 2013
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Michael A. Kazda, Poughkeepsie, NY (US);

Frank J. Musante, Poughkeepsie, NY (US);

Alexander J. Suess, Hopewell Junction, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
G06F 17/5072 (2013.01); G06F 17/5068 (2013.01);
Abstract

Optimizing circuits having a congested placement with a timing critical placement map includes identifying critical circuit components in the placement map and determining failing circuit components in the placement map; determining 'non-critical' circuit components safe to be moved; removing selected non critical from the placement map; and optimizing the critical circuit components in a new partial placement image of said map; and reinserting the 'non -critical' circuit components back into said placement image. The optimization is performed by circuit transformation operating in congested regions of the placement image enabling cell insertion and modifications that increase cell size.


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