Constant Flow Management - Investigating manufacturing flowvariability

TL;DRAbstract

This project investigates the manufacturing flow variability in order to stabilize the factory process flow. Nowadays, in manufacturing production lines and particularly in modern front end semiconductor lines, processes and equipments are very complex. Any disturbance of the process creates variability in the line, and causes substantial losses in productivity for manufacturing corporations. These disturbances are unpredictable, difficult to control and result in long recovery times. Variability occurring in a production system disturbs the whole processing flow and results in long product cycle times. Hence, a range of sources of variability was determined from the literature and analyzed. This lead with the cooperation of factory managers to the development of four main objectives: (1) Determine a proper metric to measure the variability in the production system. (2) Determine the effect of batching and tool availability on the process flow. (3) Understand the interaction betwe

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