การลดปริมาณอนุภาคเปียร์โซอิเล็กทริคทรานส์ดิวเซอร์ที่หลุดออกมาจากแขนจับหัวอ่าน/เขียน ในฮาร์ดดิสก์ไดร์ฟโดยใช้แนวทางซิกซ์ซิกมา

Abstract

This research is applied Six Sigma methodology to improve production process of Suspensions which main function is to suspend the read/write head in Hard Disk Drive. The objective of this research is to reduce the emitted Piezoelectric Transducer (PZT) particles that will damage the read/write head and disk surface, for reducing the scrap and rework cost of products which are not meet the product specification. This research is focused to study factors that influence the mean of PZT emission and identify the optimal condition by Six Sigma approach. After improvement, the mean of PZT emission can be reduced to below 120 particles per SQ.CM. which is the specification limit, by reducing the mean of PZT emission from 169.1 to 108.7 particles per SQ.CM. which is 35.7% reduction. This improvement can reduce the cost to be 81.8%.