臺灣博碩士論文加值系統

Goldratt 博士提出的限制管理觀念，認為瓶頸將決定工廠的有效產出，管理者應從瓶頸站管理出發，針對瓶頸資源作有效的管理，避免損失瓶頸產能，並設法降低瓶頸產能的浪費，來發揮瓶頸站最大的效益，創造工廠最大的有效產出，且認為提昇非瓶頸效率並不等於提昇整體效率，非瓶頸只需提供足夠瓶頸所需產能即可。那麼，非瓶頸的合理效率及品質該如何決定呢？
過去工廠生產觀念著重在效率提昇以降低成本，但對於品質變化對有效產出的影響分析未深入探討，管理者在效率選擇時通常以局部工作站成本降低幅度大於品質損失為比較分析原則，但未完整評估品質不良流出到後站或瓶頸站造成的影響，且對效率改變伴隨而來的品質損失對整體獲利的影響則未作深入的評估研究。
本研究應用限制管理觀念，深入探討如何以整體有效產出最佳為原則，將局部效率與品質損失關係、整廠作業費用與材料成本各參數整合，建立一套通用的非瓶頸站效率選擇的評估模式，來幫助管理者能以整體的有效產出最佳考量來選擇對工廠有利的生產效率，以有效發揮工廠瓶頸瓶頸產能，以達到增進企業整體獲利的目標。並以統寶光電為個案工廠，討論並實證此管理模式對工廠有效產出的影響。

According to Theory of Constraints, the maximum throughput of a factory is determined by the bottleneck; thus, bottleneck must be well-protected and fully utilized. To fully exploit the limited capacity for the bottleneck, the defective works are prohibited to enter the bottleneck station and a good work cannot be damaged in the non-bottleneck stations after the bottleneck. However, in the pressure of cost down, managers will be forced to pursuit the high efficiency of machines and ignores the influence of high efficiency on the yield rate. Although the decline of yield rate under high efficiency is minor for the non-bottleneck, this will damage the capacity of bottleneck and then lower throughput of the factory. This paper attempts to explore the throughput of a factory influenced by the relationship of the efficiency and yield rate for a non-bottleneck. To get the maximum throughput of a factory, then, an evaluation model is proposed to find a better but not the highest efficiency for the non-bottleneck. Finally, a real-life TFT-LCD company case is utilized to demonstrate the proposed concept and evaluation model.

中文摘要...................................................i
英文摘要..................................................ii
誌謝.....................................................iii
目錄.......................................................v
圖目錄....................................................vi
表目錄...................................................vii
第一章 緒論................................................1
1.1 研究背景與動機.........................................1
1.2 研究目的...............................................1
1.3 研究方法...............................................3
1.4 研究範圍與限制.........................................3
第二章 文獻探討............................................4
2.1 限制理論探討...........................................4
2.1.1 限制理論的定義.......................................4
2.1.2 限制理論分析架構.....................................5
2.1.3 產出觀與成本觀比較...................................7
2.2 相關研究探討...........................................8
2.2.1 如何充分利用限制.....................................9
2.2.2 如何全力配合限制....................................10
第三章 品質導向的保護瓶頸產能管理模式之構建...............11
3.1 問題描述..............................................11
3.2 效率對有效產出的影響分析............. ................15
3.3 非瓶頸效率與有效產出分析模式..........................17
3.3.1瓶頸站前品檢站效率提升導致不良品流到瓶頸站對有效產出的影響........................................................16
3.3.2瓶頸站後工作站效率提昇導致不良品率改變對有效產出的影響
..........................................................20
3.4 演算法................................................22
第四章 個案實證研究.......................................24
4.1 製造流程簡介..........................................24
4.1.1 工作站基本資料......................................26
4.1.2 工廠營運參數說明....................................28
4.2 效率改變對有效產出的影響分析..........................29
4.2.1 比較瓶頸前品檢站效率改變導致漏篩率改變對有效產出的影響........................................................30
4.2.2 討論................................................34
4.2.3比較瓶頸後工作站效率改變導致良率改變對有效產出的影響........................................................35
4.2.4 討論................................................39
第五章 結論與未來研究方向.................................41
5.1 結論..................................................41
5.2 未來研究方向..........................................42
參考文獻..................................................43

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