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. 14, 2014
Filed:
Mar. 15, 2013
International Business Machines Corporation, Armonk, NY (US);
Nedal R. Saleh, Santa Clara, CA (US);
Yunlin Zhang, Wappingers Falls, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for decomposing design shapes in a design level into a plurality of target design levels is provided. Design shapes including first-type edges and second-type edges having different directions is provided for a design level. Inner vertices are identified and paired up. Vertices are classified into first-type vertices and second-type vertices. First mask level shapes are generated so as to touch the first-type vertices, and second mask level shapes are generated so as to tough the second-type vertices. Cut mask level shapes are generated to touch each first-type edges that are not over a second-type edge and to touch each second-type edges that are not over a first-type edge. Suitable edges are sized outward to ensure overlap among the various shapes. The design shapes are thus decomposed into first mask level shapes, the second mask level shapes, and the cut mask level shapes.