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:
Jun. 12, 2012
Filed:
May. 25, 2010
Lewis William Dewey, Iii, Hopewell Junction, NY (US);
Tarek Ali El Moselhy, Cambridge, MA (US);
Ibrahim M Elfadel, Yorktown, NY (US);
Lewis William Dewey, III, Hopewell Junction, NY (US);
Tarek Ali El Moselhy, Cambridge, MA (US);
Ibrahim M Elfadel, Yorktown, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A computer system selects a shape included in an integrated circuit's layout file, and then selects a first contact and a second contact located on the shape. Next, the computer system computes a nominal resistance between the first contact and the second contact based upon a nominal boundary of the shape, and then computes an adjoint system vector based upon a perturbed boundary of the shape. Using the adjoint system vector, the computer system computes a resistance sensitivity between the first contact and the second contact. In turn, the computer system simulates the integrated circuit using the computed nominal resistance and the computed resistance sensitivity.