Having qualified as a simulation expert, assume that a semiconductor wafer fabrication company has appointed you...

 

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Having qualified as a simulation expert, assume that a semiconductor wafer fabrication company has appointed you to analyse and recommend performance improvements to their operations. The manager has called you to analyze and suggest solutions relating to their lengthy cycle time and poor equipment utilisation. The manager has already established the need for a simulation based approach and asks for your proposal relating to the analysis using simulation technology. The manager has also asked for your advice on convincing the staff within the organisation of the simulation based approach. (a) Discuss the factors and advantages that you will use to explain and convince the staff regarding the use of the simulation based approach for the analysis. Your arguments must include drawbacks of the simulation based approach and how you would manage and overcome drawbacks. (4 marks) (b) Discuss the key factors that you would recommend to the manager to consider in the process of selecting a suitable simulation tool or software for this analysis. (5 marks) (c) Describe the important steps required to create a usable and credible simulation model and accomplish the simulation study for the company. The details of each step should include the objectives, the expected outcome and show any iterations in the simulation based approach. (8 marks) (d) List typical input parameters that you may observe in the factory to include in your model for the analysis of cycle time and equipment utilisation. Outline how you would test the independence of an input variable. (3 marks) Having qualified as a simulation expert, assume that a semiconductor wafer fabrication company has appointed you to analyse and recommend performance improvements to their operations. The manager has called you to analyze and suggest solutions relating to their lengthy cycle time and poor equipment utilisation. The manager has already established the need for a simulation based approach and asks for your proposal relating to the analysis using simulation technology. The manager has also asked for your advice on convincing the staff within the organisation of the simulation based approach. (a) Discuss the factors and advantages that you will use to explain and convince the staff regarding the use of the simulation based approach for the analysis. Your arguments must include drawbacks of the simulation based approach and how you would manage and overcome drawbacks. (4 marks) (b) Discuss the key factors that you would recommend to the manager to consider in the process of selecting a suitable simulation tool or software for this analysis. (5 marks) (c) Describe the important steps required to create a usable and credible simulation model and accomplish the simulation study for the company. The details of each step should include the objectives, the expected outcome and show any iterations in the simulation based approach. (8 marks) (d) List typical input parameters that you may observe in the factory to include in your model for the analysis of cycle time and equipment utilisation. Outline how you would test the independence of an input variable. (3 marks)

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Semiconductor Wafer Fabrication In view of its physical structure a semiconductor wafer fab is composed of dozens of work centres Each workcentre includes multiple machines Every machine has several o... View the full answer