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ArtikelApplying six sigma DMAIC concept to approach the manufacturing quality problem of frequency shift of quartz crystal oscillator  
Oleh: Jen, Henyi ; Lin, Shyh-Ming
Jenis: Article from Proceeding
Dalam koleksi: International Symposium of Quality Management (ISQM) - Thinking in Quality: The Change and the Unchanged in the Economic Turmoil (Taipei, 6-7 November 2009), page 1-13.
Topik: Six Sigma DMAIC; value stream; frequency shift; quartz crystal oscillator
Fulltext: B1-04.pdf (653.14KB)
Isi artikelWe used Six Sigma DMAIC concept to approach the frequency shift problem of the quartz crystal oscillator product during manufacturing process. With value stream method in define phase, we found the quality characteristic of adhesive bonding strength due to curing temperature parameter setting of tunnel-shape oven to be the cause of the frequency shift. Factorial design experiment was carried out in improve phase to identify the best parameter setting for the curing operation. The defect rate reduced significantly from 1.99% to 0.57% after implementing this new parameter setting.
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