本研究主要探討以IC後段加工製程之半導體封裝廠應用負荷量控管問題。負荷量控管之架構包含三大機制，包含訂單釋放、投料前等候區(Pre-shop pool)中排序、現場派工，其中，訂單釋放機制又可以涵蓋兩大決策，第一，在pre-shop pool中的待釋放訂單進行排序，第二，選擇釋放訂單的決策。因此，主要探討訂單釋放與現場派工機制。
本研究所提出之架構為訂單釋放、Pre-shop pool訂單排序、現場派工三個因子，在不同情境之下，需找出一適當的組合才能降低流程時間以及遲交率，考量生產系統的特性與限制，包含：拆批行為、機台限制、順序相依的設置時間。在生產系統中加工時間與設置時間等等具有隨機性的因素，透過建構一模擬模式來進行重複模擬才能去估計每個方案的績效，並利用最佳模擬預算分配法(OCBA)有效分配有限模擬資源，同時節省模擬時間。
本研究經模擬分析結果得證，不論是在確定性的環境或是隨機性的環境，訂單釋放法則與派工法則會顯著影響系統績效，且不同於文獻所述，週期性的投料方法較連續性的方法適合應用於封裝廠中。總結來說，訂單釋放、Pre-shop pool訂單排序、現場派工三個因子對半導體封裝產業所注重的績效指標都相當重要。

This research applies workload control concept in semiconductor assembly factory. The framework of the workload control includes three mechanisms, order acceptance, order release and dispatching. Order release contains two decisions: (i) a sequencing decision for releasing jobs; and, (ii) a selection decision for choosing jobs to release. This research discusses order release and dispatching.
The proposed framework is to discuss the decision, which is composed of order release method, pre-shop pool sequencing rule and dispatching, must be in good cooperation to decrease in-process cycle time and tardy percentage under different scenarios. Considering the production characteristics of semiconductor assembly factory: unrelated parallel machine, job split, machine availability and sequence-dependent setup time. Due to stochastic processing time and setup time in the production system, simulation replications must be performed to estimate the performance of each design. Therefore, an evaluative model is constructed. Moreover, optimal computing budget allocation (OCBA) is applied to efficiently allocate limited simulation budget and reduce the total simulation times.
It is proved that combination of order release methods and dispatching rules have significantly impacted on in-process cycle time and tardy percentage, no matter the environment is deterministic or stochastic. Also, periodical order release outperforms continuous order release in performance. In the conclusion, this research examines the effect of order release and dispatching in semiconductor assembly factory and show that they significantly improve overall performance.

摘要...............................................i
Abstract..........................................ii
誌謝.............................................iii
目錄..............................................iv
圖目錄............................................vi
表目錄.............................................x
第一章 緒論.........................................1
1.1 研究背景與動機................................. 1
1.2 研究目的.......................................3
1.3 研究範圍.......................................3
1.4 研究步驟.......................................4
第二章 封裝廠生產系統特性與問題定義...................6
2.1 產品簡介.......................................6
2.2 半導體封裝製程介紹..............................8
2.3 封裝廠訂單特性分析..............................10
2.4 半導體封裝生產系統特性分析.......................17
2.5 問題定義.......................................21
第三章 文獻回顧....................................25
3.1 WLC背景與架構................................. 25
3.2 最佳資源分配法.................................44
3.3系統塑模語言(Systems Modeling Language).........47
第四章 負荷量控管(WLC)應用於半導體封裝廠..............53
4.1 研究方法架構.................................. 53
4.2 計算訂單釋放量.................................55
4.3 訂單於Preshop-pool中排序與選擇..................60
4.4 現場派工......................................63
4.5 簡例說明.......................................66
第五章 模擬模式建構.................................76
5.1 模擬輸入資料分析................................76
5.2 SysML模式建構(Modeling)........................77
5.3 SimPy模擬程式(Simulation)......................90
5.4 模擬程式驗證....................................98
第六章 系統模擬實驗與結果分析........................103
6.1 問題定義.......................................103
6.2 模擬實驗的進行.................................104
6.3 封裝生產系統之微觀實驗設計.......................105
6.4 封裝生產系統之巨觀實驗設計.......................134
第七章 結論與建議...................................143
7.1 結論...........................................143
7.2 建議...........................................144
參考文獻...........................................145
附錄...............................................148

1. 林則孟(2012)，生產計劃與管制，華泰出版社
2. 林清河(2006)，物料管理，華泰出版社
3. 顏嘉良(2017)，探討投料、緩衝及瓶頸資源派工於半導體封裝製程，國立清華大學工業工程與工程管理學系碩士論文
4. Bechte, W. (1988). Theory and practise of load-oriented manufacturing control. Int. J. Prod. Res. 26(3): 375–395.
5. Bechte, W. (1994). Load-oriented manufacturing control just-in-time production for job shops. Prod. Plan. Control 5(3): 292–307.
6. Bergamaschi, D., R. Cigolini, M. Perona, A. Portioli. (1997). Order review and release strategies in a job shop environment: A review and a classification. Int. J. Prod. Res. 35(2): 399–420.
7. Blackstone, J. H., Phillips, D. T., & Hogg, G. L. (1982). A state-of-the-art survey of dispatching rules for manufacturing job shop operations. The International Journal of Production Research, 20(1), 27-45.
8. Blackstone, J. H., Phillips, D. T., & Hogg, G. L. (1982). A state-of-the-art survey of dispatching rules for manufacturing job shop operations. The International Journal of Production Research, 20(1), 27-45.
9. Chen, C. H., Lin, J., Yücesan, E., & Chick, S. E. (2000). Simulation budget allocation for further enhancing the efficiency of ordinal optimization. Discrete Event Dynamic Systems, 10(3), 251-270.
10. Fredendall, L. D., D. Ojha, J. W. Patterson. (2010). Concerning the theory of workload control. Eur. J. Oper. Res. 201(1): 99–111.
11. Glassey, C. R., & Resende, M. G. (1988). Closed-loop job release control for VLSI circuit manufacturing. IEEE Transactions on Semiconductor manufacturing, 1(1), 36-46.
12. Hsu, S. Y., & Sha, D. Y. (2007). The integration of shop floor control in wafer fabrication. Journal of Manufacturing Technology Management, 18(5), 598-619.
13. Haupt, R. (1989). A survey of priority rule-based scheduling. Operations-Research-Spektrum, 11(1), 3-16.
14. Hendry, L., & Kingsman, B. (1991). A decision support system for job release in make-to-order companies. International Journal of Operations & Production Management, 11(6), 6-16.
15. Hendry, L. C., and S. K. Wong. (1994). Alternative Order Release Mechanisms: A Comparison by Simulation. International Journal of Production Research 32 (12): 2827–2842.
16. Land, M., & Gaalman, G. (1996). Workload control concepts in job shops a critical assessment. International journal of production economics, 46, 535-548.
17. Land, M. J., G. J. C. Gaalman. (1998). The performance of workload control concepts in job shops: Improving the release method. Int. J. Prod. Econ. 56–57: 347–364.
18. Land, M. (2006). Parameters and sensitivity in workload control. International journal of production economics, 104(2), 625-638.
19. Melnyk, S. A., & Ragatz, G. L. (1989). Order review/release: research issues and perspectives. The International Journal Of Production Research, 27(7), 1081-1096.
20. Oosterman, B., M. J. Land, G. J. C. Gaalman. (2000). The influence of shop characteristics on workload control. Int. J. Prod. Econ. 68(1): 107–119.
21. Philipoom, P. R., M. K. Malhotra, J. B. Jensen. (1993). An evaluation of capacity sensitive order review and release procedures in job shops. Decis. Sci. 24(6): 1109–1133.
22. Sabuncuoglu, I., H. Y. Karapinar. (1999). Analysis of order review/ release problems in production systems. Int. J. Prod. Econ. 62: 259–279.
23. Thürer, M., Silva, C., & Stevenson, M. (2011). Optimising workload norms: the influence of shop floor characteristics on setting workload norms for the workload control concept. International Journal of Production Research, 49(4), 1151-1171.
24. Thürer, M., Stevenson, M., Silva, C., Land, M. J., & Fredendall, L. D. (2012). Workload Control and Order Release: A Lean Solution for Make‐to‐Order Companies. Production and Operations Management, 21(5), 939-953.
25. Thürer, M., Qu, T., Stevenson, M., Maschek, T., & Godinho Filho, M. (2014). Continuous workload control order release revisited: an assessment by simulation. International Journal of Production Research, 52(22), 6664-6680.
26. Thürer, M., Land, M. J., Stevenson, M., Fredendall, L. D., & Godinho Filho, M. (2015). Concerning Workload Control and Order Release: The Pre‐Shop Pool Sequencing Decision. Production and Operations Management, 24(7), 1179-1192.
27. Wein, L. M. (1988). Scheduling semiconductor wafer fabrication. IEEE Transactions on semiconductor manufacturing, 1(3), 115-130.
28. Wight, O. (1970). Input/output control a real handle on lead time. Production and Inventory Management, 11(3), 9-31.
29. Wisner, J. D. (1995). A review of the order release policy research. Int. J. Oper. Prod. Manage. 15(6): 25–40.
30. Yan, H., Stevenson, M., Hendry, L. C., & Land, M. J. (2016). Load-Oriented Order Release (LOOR) revisited: bringing it back to the state of the art. Production Planning & Control, 27(13), 1078-1091.
31. Yeong-Dae, K., Dong-Ho, L., Jung-Ug, K., & Hwan-Kyun, R. (1998). A simulation study on lot release control, mask scheduling, and batch scheduling in semiconductor wafer fabrication facilities. Journal of Manufacturing Systems, 17(2), 107-117.
32. Yoon, S., Kim, J., & Jeong, S. (2017). The optimal decision combination in semiconductor manufacturing. Sustainability, 9(10), 1788.