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:
Oct. 20, 2015
Filed:
Dec. 21, 2012
Cadence Design Systems, Inc., San Jose, CA (US);
Xiaojun Wang, Cary, NC (US);
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
A method for automatically performing a double patterning (DP) color-seeding check in order to discover color-seeding violations in an IC design layout. The method of some embodiments receives a layer of the IC design layout and performs an analysis on the layer of the design layout to determine several error paths. Each error path connects two color-seeding shapes that have a color-seeding violation. For each pair of shapes that has a color-seeding violation, the method of some embodiments displays a DP color-seeding violation marker on a graphical user interface (GUI) to visually assist a user to resolve the color-seeding violation.
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