THE KEY QUALITY IMPROVEMENT OF ELECTRONIC PRODUCT(S) USING THE THEORY OF CONSTRAINTS AND ANALYTIC HIERARCHY PROCESS

摘要

In the High-Tech industry continuous manufacturing process, some system bottlenecks will restrict the effective throughput of the whole production system. This paper incorporates the theory of constraints (TOC) framework in the electronic product system, subsystems, modules and parts. The aim is to evaluate the key factors affecting product quality seriously, to avoid causation system's constraints and product's final quality, so as to improve the effectively throughput of the system. This study applies the analytic hierarchy process (AHP). Through expert evaluation, the key parts of affecting quality seriously, process capability and quality stability are analyzed. If the process capability index of the key parts is below the pre-determined target value, the parts will likely to cause product defects and system's constraints. Moreover, the exploitation of TOC problem solving process will result in quality improvement. The strategies improve the quality and avoid the loss of capacity constraints resources to achieve the synergy. By implementing the improved actions, we evaluate the performance of throughput rate, process yield rate and first-pass rate between before and after improvement to verify the benefit of improvement. Finally, this paper employs the TOC-based quality improved knowledge management repository through the systematic quality improvement process.