Abstract
Six Sigma is to introduce define, measure, analyze, improve, control (DMAIC) in manufacturing process to improve product quality and reduce defect products. At the improvement stage, the Mahalanobis-Taguchi system, given its capability of classification and feature selection, is integrated to reduce the redundant testing items in the testing procedure, and provide a test flow of better economic benefits. The purpose is to conduct sound design to enhance process capability to reduce costs and improve corporate competitiveness. Finally, with the alignment yield of glass panel of LCD companies as the simulation object, this study confirmed that the new process parameters can reduce the alignment film thickness variance, and enhance the overall LCD chromaticity yield. Key words: Process capability, Six Sigma, Mahalanobis-Taguchi system, classification, LCD.
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