Yp — Ypk: Product test yield and yield dispersion indicators

Product test results deliver multiple data about yield and detractors, comprising their centering and dispersions. They present a challenge for information delivery, in particular when the data ranges imply more than 3 orders of magnitude. To visualize them in a “at-a-glance” or “one-shot” dashboard, we present Yp and Ypk as a practical solution. This set of indicators Yp and Ypk is calculated relative to a best-can-do real-world reference. First examples illustrate the effectiveness of the method.