Patent ID: 6496788
Filing Date: 2002-12-17
Classification: G06F

Abstract:
A method of processing data comprising the steps of:previously registering die research data including at least a number of defects for each type and manufacturing result pass/fail for each of a plurality of dies divided from a single wafer; receiving type selecting data for selecting a specified defect which is a defect of one type; retrieving the die research data corresponding to the specified defect with the input type selecting data; classifying the retrieved die research data based on a number of the specified defects present on a die; calculating a killer ratio for each of a plurality of groups of the classified die research data; calculating a killer ratio in a case of one specified defect for each of the groups from the calculated killer ratio for each of the groups; weighting the calculated killer ratio for each of the groups in accordance with the number of the specified defects; and calculating one killer ratio as an average value of the weighted killer ratios for the respective groups.