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:
Mar. 19, 2019
Filed:
Jun. 08, 2017
Globalfoundries Inc., Grand Cayman, KY;
Andrey Lutich, Dresden, DE;
GLOBALFOUNDRIES INC., Grand Cayman, KY;
Abstract
A known pattern area (of known shapes) is aligned with a first area of an IC design (by overlaying and centering the known pattern area on the first area). The first area is compared to the known pattern area to identify dissimilarities between shapes in the first area and the known shapes in the known pattern area as unweighted shapes. The unweighted shapes are weighted (based on the location of the unweighted shapes relative to a weighting zone pattern) to produce weighted shapes; and a dissimilarity measure between the first area and the known pattern area is calculated by summing the weighted shapes. A determination of whether the first area matches the known pattern area is made (based on whether the dissimilarity measure exceeds a threshold) and the same is output.