Wayne Chou, Customer Quality Engineer, Applied Materials Corp.
Kemp Wu, Global Installation Engineer, Applied Materials Corp.
The goal of this Six Sigma BB Project was to improve the Pin Gauge Measurement Capability of the diffuse hole size, which is critical to the Production Failure Analysis. Several JMP Analysis objectives are in the Measure Phase. First, compare Excel Xbar-R method vs. JMP ANOVA cross method. Second, choose GRR criteria between Precision to Tolerance (P/T) ratio and Precision to Total Variance (P/TV) ratio. Third, use SPC Control Chart to monitor the GRR stability, determine the process long term sigma for calculating the GRR P/V ratio, and identify the process rational subgrouping. Fourth, evaluate the Pin Gage wear risk to determine whether the Pin Gage measurement is destructive test and use the GRR Nested model. Finally, use GRR Misclassification to assess the risk of both the Alpha risk and Beta risk on the production yield/cost. JMP platforms have helped us execute this Six Sigma BB project effectively.
