Six Sigma

Sqc Case Studies Printed Circuit Board

Project to Improve a Paper Air Wings System:

Improve:

 From the process mapping experience, the placement method was identified as a key input variable. Common sense suggested that careful placement might improve the appearance.

Control:

To verify that the air time was not made worse by the revised SOP, Xbar & R charting based on an additional 24 air wings were constructed and tested.