Incidences of Incorrect Serial Number Labels

Abstract

Since May thru July 2017, there were reported four instances of units shipped with incorrect serial numbers. It caused impact to quality metrics at local manufacturing site. Nevertheless, a local project was initiated to pursue a reduction of these shipped defects. DMAIC methodology was applied for this project, and the problem statement was the first step completed for the define phase. Then, the current state of the manufacturing process was evaluated as part of the measure phase. During the analyze phase, key inputs contributing to these defects were confirmed which allowed to start identifying improvements of the process. Finally, improvement process is taking place and controls such as the use of magnifiers, equipment controllers, integrated vision systems and reporting tools solutions were developed and some of them implemented on the corresponding process steps. Further, control phase will be monitoring the improved process to demonstrate the effectiveness of the improvements. Key Terms ⎯ DMAIC, equipment controller (EC), fixture, vision system.