Infant mortality is caused by imperfections in the manufacturing process. For machine builders with a limited number of products per year the learning of the manufacturing process can’t be fast enough to secure the required quality. For that a method is developed which can predict the infant mortality defect rate. More importantly also which manufacturing processes or parts causes the defect rate. Based on this a mitigation strategy can be implemented even before the product is proto typed or manufactured. Mitigation is done by either changing the design, improving the processes or as last resort test the identified part or process. The data used for the prediction is based on measured date from the past.
Dick van Hees, MRMc (voorheen ASML)
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