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https://scholarbank.nus.edu.sg/handle/10635/66450
Title: | An MILP approach to automated wet-etch station scheduling | Authors: | Bhushan, S. Karimi, I.A. |
Issue Date: | 2-Apr-2003 | Citation: | Bhushan, S.,Karimi, I.A. (2003-04-02). An MILP approach to automated wet-etch station scheduling. Industrial and Engineering Chemistry Research 42 (7) : 1391-1399. ScholarBank@NUS Repository. | Abstract: | Wet-etching in wafer fabrication is an automated process involving a complex interplay of mixed intermediate policies and material-handling constraints. Its operation poses a challenging resource-constrained flowshop scheduling problem that is crucial for enhancing productivity, improving yield, and minimizing wafer contamination. A novel continuous-time mixed-integer linear programming (MILP) formulation is presented for sequencing and scheduling wafer lots in an automated wet-etch station (AWS). Several reformulations and constraints are numerically evaluated to identify the best formulation. On the basis of this formulation, a near-optimum two-step strategy that is robust with respect to lot transfer times is developed for solving moderately sized problems. | Source Title: | Industrial and Engineering Chemistry Research | URI: | http://scholarbank.nus.edu.sg/handle/10635/66450 | ISSN: | 08885885 |
Appears in Collections: | Staff Publications |
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