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:
Nov. 13, 2001
Filed:
Jun. 09, 1999
Applicant:
Inventor:
Evanthia Papadopoulou, White Plains, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/750 ; G06F 1/900 ;
U.S. Cl.
CPC ...
G06F 1/750 ; G06F 1/900 ;
Abstract
A method for computing critical area for opens of a layout, which may be implemented by program storage device readable by machine, tangibly embodying a program of instructions executable by the machine, to perform the method steps includes computing Voronoi diagrams of shapes of the layout, determining core elements and weights for the core elements of the shapes, computing a weighted Voronoi diagram for the layout to arrive at a partitioning of the layout into regions, computing critical area within each region and summing the critical areas to arrive at a total critical area for opens in the layout.