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:
Jan. 27, 2009
Filed:
Apr. 14, 2006
Robert J. Allen, Jericho, VT (US);
Michael S. Gray, Fairfax, VT (US);
Fook-luen Heng, Yorktown Heights, NY (US);
Jason D. Hibbeler, Williston, VT (US);
Kevin W. Mccullen, Essex Junction, VT (US);
Rani R. Narayan, San Jose, CA (US);
Robert F. Walker, St. George, VT (US);
Xin Yuan, Williston, VT (US);
Robert J. Allen, Jericho, VT (US);
Michael S. Gray, Fairfax, VT (US);
Fook-Luen Heng, Yorktown Heights, NY (US);
Jason D. Hibbeler, Williston, VT (US);
Kevin W. McCullen, Essex Junction, VT (US);
Rani R. Narayan, San Jose, CA (US);
Robert F. Walker, St. George, VT (US);
Xin Yuan, Williston, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method comprises extracting a hierarchical grid constraint set and modeling one or more critical objects of at least one cell as a variable set. The method further comprises solving a linear programming problem based on the hierarchical grid constraint set with the variable set to provide initial locations of the critical objects of the at least one cell and determining target on-grid locations of the one or more critical objects in the at least one cell using the results of the linear programming solution.