請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46104
標題: | 考量等候時間限制之多階製造鏈整合 Integration of Multi-stage Manufacturing Shops with Queue-time Constraint |
作者: | Cheng-Hao Huang 黃政皓 |
指導教授: | 周雍強(Yong-Chiang Chou) |
關鍵字: | 半導體製造,製造整合,等候時間限制,靜態產能,前瞻視野, semiconductor manufacturing,integration of scheduling,static capacity,Queue-time limit,look-ahead information, |
出版年 : | 2010 |
學位: | 碩士 |
摘要: | 半導體製造系統複雜,尤其在今12吋晶圓廠的時代,整個生產階段形成專業分工的情形,各生產節點各自做好最好的生產規劃,但是在跨廠區之間卻缺乏一個良好的系統來整合,因此有許多的問題需要解決,其中之一便是等候時間限制。在特定製程間會有等候時間之限制,前製程完成後需於特定等候時間限制內進入後製程,超過此一時限會產生品質問題,需進行重工損耗產能。
有許多的文獻在處理多零工式生產整合的議題上,是使用數學規劃法或是模擬法來求取最佳解,但是當問題的複雜度變大時,決策時間會呈倍數成長,不適合短期、動態的環境,有鑑於此,本研究發展一個以靜態產能估計為基底的整合方法(Queue estimate-based Lot Permission rule; QEBP),係利用目前可得之資訊,如工件規格、現場狀況等資訊去做組合運算,以快速的估計生產週期時間。 此資訊可用來處理工單有等後時間限制的特性;上游的生產節點可以經由預估下游暫存區的在製品負荷長度,然後在適當的時間點投料,避免超出等候時間限制的情形出現,經過模擬實驗的結果分析,發現QEBP在不同的環境設置下,均比完全放行法則,更能提高產量、有效率的估計產能負荷,能幫助管理者快速的做出決策。 The semiconductor manufacturing system is complex, each of manufacturing node do the best production planning, but lack of cross cooperation between the factory. There are many factors affecting the throughput and yield rate. One of them is the “Queue-Time-Limit”. Certain process steps have the queue-time-limit, which means a lot needs to begin the following process step within certain time limit after it completes its operation of the previous process step. If a lot exceeds the queue-time-limit, quality issues will occur and the lot needs to be reworked Many of the references deal with multi job shops integration issues, they use mathematical programming method or the simulation method to obtain the optimal solution, but when the complexity of the problem become larger, decision time will grow exponentially. This situation is not suitable for short-term,dynamic environment. So, this research develop a static capacity estimated based integration method (Queue estimate-based Lot Permission rule; QEBP) it using the available information currently, such as the lot type, site of conditions or so on to Combination calculation, in order to estimate the production cycle time quickly. This information can be used to handle work orders with the queue time limit characteristics upstream production node estimate the downstream buffer loading, and then feed the lots at appropriate time to avoid waiting time exceed the limit .After the simulation analysis, we found QEBP complete more work orders than all-release method in different environment ,it’s also estimate the capacity loading efficiently that can help managers make decisions quickly. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46104 |
全文授權: | 有償授權 |
顯示於系所單位: | 工業工程學研究所 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-99-1.pdf 目前未授權公開取用 | 1.14 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。