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1. (WO2017154814) MANUFACTURING PROCESS ANALYSIS METHOD

Pub. No.:    WO/2017/154814    International Application No.:    PCT/JP2017/008683
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Mar 07 00:59:59 CET 2017
IPC: G05B 19/418
G05B 23/02
G06Q 50/04
Applicants: MITSUBISHI CHEMICAL ENGINEERING CORPORATION
三菱ケミカルエンジニアリング株式会社
Inventors: KAWANO Kouji
河野 浩司
Title: MANUFACTURING PROCESS ANALYSIS METHOD
Abstract:
[Problem] To provide a manufacturing process analysis method for specifying a hindering factor that causes a variation in product performance and for stabilizing product performance. [Solution] A manufacturing process analysis method comprises: a step (S1) for collecting product data indicating the quality of a product and process data indicating manufacturing conditions of a product; a step (S2) for standardizing the process data so that the data are converted into an intermediate function; a step (S3) for performing principal component analysis on the intermediate function to derive a principal component load amount and a principal component score of the process data; a step (S4) for applying cluster analysis to the principal component score to classify manufacturing process lots into a plurality of groups; a step (S5) for determining relative merit of each group on the basis of product data soundness corresponding to the principal component score belonging to the group; and a step (S6) for specifying a hindering factor that contributes to the relative merit of the group.