The Application Research Of Improving The Qualified Rate Of PCB Based On Six Sigma Management

The HX company is a R & D and manufacturing company of the military electronic product enterprises, The surface mounted qualified rate of PCB of the SMT influences the assemble quality、cost and efficiency of the military electronic product. Because of the low qualified rate, the text sets up a project of using six-sigma to analyze the PCB qualified rate. Finally, the corporation reaches important events because decreasing the disassembly of assemble line and the feedback from low quality goods.This article defines the production technology of SMT, the surface mounted production process of PCB, and the present situation of PCB’s percent qualified rate in the HX corporation. Secondly calculates the meaning by using the six-sigma technique to figure out the difficulties. Explains the origin and development of six-sigma, and introduce the DMAIC flow、the comparison of the management methods between six-sigma and other improvements methodologies. to the seventh chapter introduce that improve the surface mounted qualified rate of PCB in the SMT,by explanations the DMAIC flow from the six-sigma technique. First of all, explain the scope of project perfection also all the workers of the Define way, which has worked out the basics from all of the analysis. In the Measure way, use the measurement system to investigate and process abilities analysis to analyse the data which collected. And derive the five factors which affecting the surface mounted qualified rate of PCB. At the Analyze method, The thesis leads to a isolated analysis from the five factors of which hypothesis managing. As a nice way of improving, the experiment design method is considered to improve each of the ways from the Improve step. Eventually, management and supervise from the worked out goals of the standardization files, process documents also the manage chart. The last explains both the direct and the indirect final events, also explains the importance from the project implement to the HX company.