Abstract
Process capability analysis is a highly effective means of assessing the process ability of manufacturing product that meets specifications. A larger process capability index (PCI) implies a higher process yield, and lower expected process loss. Many PCIs have been effectively and widely used to determine whether the quality of a process meets preset targets. However, those existing PCI cannot be applied to evaluate the process capability of a process producing a product family. This work presents a novel PCI (C Tpm ) which takes into account all family members and obtains the probability density function for the PCI for a product family. The relationship between the PCI and process yield is described. An example is provided to demonstrate the methodology for practical application.
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Chen, K.S., Huang, M.L. Process Capability Evaluation for the Process of Product Families. Qual Quant 41, 151–162 (2007). https://doi.org/10.1007/s11135-005-6223-7
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DOI: https://doi.org/10.1007/s11135-005-6223-7