| 摘要 |
PROBLEM TO BE SOLVED: To provide a defective process estimating method for estimating whether a manufacturing process using only one manufacturing apparatus is a defect generating factor to generate defective products. SOLUTION: A manufacturing process S using only a manufacturing apparatus 1 is included within manufacturing processes S0, S, and T0, and the processes with such manufacturing apparatus 1 are eliminated in accordance with kinds of the products. In regard to each product obtained through the manufacturing process thereof, the processed/non-processed item number data are collected indicating the number of products processed with the manufacturing apparatus 1 and the number of products to which the processes are eliminated with the manufacturing apparatus 1, and the good-product/defective-product item number data are also collected indicating the number of good products obtained as the result of inspection in the inspecting process T0 and the number of defective products. Whether the manufacturing process S is a cause of generating defective product or not is estimated on the basis of the above processed/non-processed item number data and the good-product/defective product item number data. COPYRIGHT: (C)2007,JPO&INPIT
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