Finite capacity planning algorithm for semiconductor industry considering lots priority
نویسندگان
چکیده
منابع مشابه
Finite capacity planning algorithm for semiconductor industry considering lots priority
A finite capacity planning heuristic is developed for semiconductor manufacturing with highmix low-volume production, complex processes, variable cycle times and reentrant flows characteristics. The proposed algorithm projects production lots trajectories (start and end dates) for the remaining process steps, estimates the expected load for all machines and balances the workload against bottlen...
متن کاملEvaluation of Capacity Planning Practices for the Semiconductor Industry
We evaluate several features of capacity planning approaches used in practice and make concrete suggestions for practitioners. We run four experiments to determine the eeects of large vs. small time buckets, the cost implications of using heuristics, frequent vs. less frequent forecasting and planning, and joint optimization of tool and oor-shell expansions vs. sequential optimization. We use i...
متن کاملCapacity Planning for Cluster Tools in the Semiconductor Industry
This paper proposes a new model for Cluster-tools with two load locks. Clustertools are widely used to automate single wafer processing in semiconductor industry. The load locks are the entry points into the vacuum of the Clustertool’s mainframe. Usually there are two of them available. Each lot being processed, is dedicated to a single load-lock. Therefore at most two different lots (with poss...
متن کاملA Finite Capacity Priority Queue with Discouragement
In this paper we report on a study of a two level preemptive priority queue with balking and reneging for lower priority level. The inter-arrival and the service times for both levels follow exponential distribution. We use a finite difference equation approach for solving the balance equations of the governing queuing model whose states are described by functions of one independent variable. H...
متن کاملCoordinating Strategic Capacity Planning in the Semiconductor Industry
We study strategic capacity planning in the semiconductor industry. Working with a major US semiconductor manufacturer on the strategic configuration of their worldwide production capacities, we identify two unique characteristics of this problem as follows: (1) wafer demands and manufacturing capacity are both main sources of uncertainty, and (2) capacity planning must consider two distinct vi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IFAC-PapersOnLine
سال: 2015
ISSN: 2405-8963
DOI: 10.1016/j.ifacol.2015.06.314