Process capability indices have been proposed in the manufacturing industry to provide numerical measures on process reproduction capability, which are effective tools for quality assurance and guidance for process improvement. In process capability analysis, the usual practice for testing...

The process capability index C<Subscript>pk</Subscript> has been widely used in the manufacturing industry to provide numerical measures on process performance. Since C<Subscript>pk</Subscript> is a yield-based index which is independent of the target T, it fails to account for process centering with symmetric tolerances, and presents an...</subscript></subscript>