Patent ID: 7229845
Filing Date: 2007-06-12
Classification: G06Q,Y02P

Abstract:
1. A method for processing a semiconductor manufacturing results file (results file), comprising the steps of: determining a set of concentric wafer-rings of a wafer-map, the wafer-map given by the results file, the results file indicating a set of defect-coordinates associated with a set of wafer-defects falling within the wafer-map; and computing a set of defect-percentages, wherein a first defect-percentage of the set of defect-percentages is (a) associated with a first wafer-ring of the set of concentric wafer-rings and (b) represents a ratio of the number of wafer-defects falling within the first wafer-ring to the total number of wafer-defects falling within the wafer-map.