Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Reentrant Flow"”.
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Automation techniques for short interval scheduling in a complex manufacturing environment
… high variety, low volume environment with reentrant flow. The current process is not only time consuming but also disrupts coordination between supporting functions. This thesis explores the challenges of developing and implementing an automated scheduling tool in a flexible job shop with …
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Stochastic Scheduling for a Network of MEMS Job Shops
… the first stage solution may either violate the reentrant flow conditions or it may create a deadlock. In order to alleviate these infeasibilities, we develop feasibility cuts which when appended to the master problem eliminate the infeasible solution. Alternatively, we also develop constraints …
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Reduction of Average Cycle Time at a Wafer Fabrication Facility
… environment is quite different from the usual flow shop or job shop environments, with a distinguishing feature being the reentrant flow of the lots through the system. Lots at different stages of their manufacturing cycle may revisit the machines. This gives rise to the need of effective …
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Impact of Lot Dedication on the Performance of the Fab
… area difficult to schedule are as follows: reentrant flow, unpredictable yield and rework time at critical operations, shared resources such as reticles, rapidly changing technologies, and lot dedication for steppers and scanners for critical layers. This processing area, where wafers are …