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:
Dec. 15, 2009
Filed:
Aug. 02, 2006
Robert J. Allen, Jericho, VT (US);
Sarah C. Braasch, Richmond, VT (US);
Mervyn Y. Tan, South Burlington, VT (US);
Robert J. Allen, Jericho, VT (US);
Sarah C. Braasch, Richmond, VT (US);
Mervyn Y. Tan, South Burlington, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In embodiments of a method critical area is calculated based on both independent and dependent compound fault mechanisms. Specifically, critical area is calculated by generating, for each simple fault mechanism in the compound fault mechanism, a map made up of polygonal regions, where values on a third dimensional z-axis represent the critical defect size for each single fault mechanism at a point x,y. These maps are overlaid and the planar faces (i.e., top surfaces) of each region of each map are projected onto the x,y plane in order to identify intersecting sub-regions. The dominant fault mechanism within each sub-region is identified based on an answer to predetermined Boolean expression and the critical areas for all of the sub-regions are accumulated in order to obtain the total critical area for the compound fault mechanism.