dc.description.abstract | Nowadays the manufacturing companies focus on mass production to increase profit. Therefore, process improvement becomes the key for a company to succeed. Cost reduction and efficiency improvement can achieve through cost and quality control and process improvement.
The idea of six sigma is seeking minimal variation, by introducing statistic’s normal distribution and probability to measure the quality, which was set everything on a measurable basis with quantify data analysis with a scientific method. As this method can identify waste on production and bring up improvement, six sigma gradually become more and more important for manufacture drive company.
This essay used a high power LED ceramics company as an example, and using six sigma model and conduct information through the cross-department project team to analyze the core issue which leads to a lack of electrical performance. We conducted the experiment first by using factor analysis to locate the potential factor that leads to a lack of electrical performance, then introduced C&E Matrix and cross-department project team to grade the factor according to influence level and weight analysis. In the end, we concluded that the laser process and process cleaning are the key factors for lack of electrical performance. Using the DOE method in the experiment, we were able to identify the best condition for laser drilling. By control plan and SOP, we implemented scrub and cleaning method to reduce the meltdown down after laser drilling. In the end, we attained the goal for put product in storage within the time frame, the lack of electrical performance for our customer A’s product also reduced from 9.38% to 3.6%, inventory increased from 86.2% to 93.4%, which lead to almost a 7 million TWD income growth. | en_US |