Should the focus of a discrete manufacturer be on overall yield/output, or on first time yield?
Before we address the question, let’s define the difference.
Overall yield is the total final output of a manufacturing line. It includes any units that had to be reworked in a repair bay due to defects or errors but did end up earning the stamp of approval.
First time yield (FTY), on the other hand, looks only at those units that made it all the way down the line and out the door without any defects or errors that required rework.