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. 03, 2015
Filed:
Dec. 21, 2012
Applicant:
Cadence Design Systems, Inc., San Jose, CA (US);
Inventor:
Xiaojun Wang, Cary, NC (US);
Assignee:
Cadence Design Systems, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
G06F 17/5081 (2013.01); G06F 17/5068 (2013.01);
Abstract
Some embodiments of the invention provide a method for balancing the assignment of shapes from a portion of an IC design layout to different masks. The method of some embodiments assigns the shapes to a plurality of masks in a manner that a variation between the numbers of shapes assigned to each mask is within a certain threshold. The method of some embodiments performs a separate analysis for shapes which are outside of a threshold distance from any other shapes.
Wang, Xiaojun. (2015). Double patterning coloring with color balancing (U.S. Patent No. 8949747). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8949747
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