First name..... LAISL N e ... Chapter 8 - Design for Six Sigma - Solutions Instructor Reserve Problems Management at Cirquelectra Corp. is concerned about the amount of scrap being generated in making an integrated circuit board. The specification was 0.675 0.09 volts A team was formed to find the root cause of scrap, and they succeeded in finding a way to reduce the scrap cost to $12.15 per part. a. What is the Taguchi loss function for this project? b. What is the Taguchi loss function if the process deviation from target can be reduced from its current level to 0.05 volts? Sirke Test tested eight microcircuits used for heavy duty use in commercial two-way radio transceivers in a 15,000-hour test. Compute the failure rate if two failed after 2000, one after 4750, two after 12,500 hours and the other three ran for the full 15,000 hours each. 14. The MTBF of an integrated circuit made by InteCirques, Inc. is 11,500 hours. Calculate the failure rate 15. Reelrad Co. manufacturer of satellite radios purchases electronic components as modules. The reliabilities of components differ by supplier (see diagram, below). Suppose that the configuration of the components is given by: 2 0 -0-00 Note that one very critical component has two modules as "backup" in parallel with the main unit. The components can be purchased from three different suppliers. The reliabilities of the components are as follows: 0.98 Component Supplier 1 Supplier 2 Supplier 3 0.95 0.96 0.98 0.97 0.95 0.93 0.96 0.94 0.93 0.92 0.99 0.98 0.96 Transportation and purchasing considerations require that only one supplier be chosen Which one should be selected if the radio is to have the highest possible reliability? 0.99 First name..... LAISL N e ... Chapter 8 - Design for Six Sigma - Solutions Instructor Reserve Problems Management at Cirquelectra Corp. is concerned about the amount of scrap being generated in making an integrated circuit board. The specification was 0.675 0.09 volts A team was formed to find the root cause of scrap, and they succeeded in finding a way to reduce the scrap cost to $12.15 per part. a. What is the Taguchi loss function for this project? b. What is the Taguchi loss function if the process deviation from target can be reduced from its current level to 0.05 volts? Sirke Test tested eight microcircuits used for heavy duty use in commercial two-way radio transceivers in a 15,000-hour test. Compute the failure rate if two failed after 2000, one after 4750, two after 12,500 hours and the other three ran for the full 15,000 hours each. 14. The MTBF of an integrated circuit made by InteCirques, Inc. is 11,500 hours. Calculate the failure rate 15. Reelrad Co. manufacturer of satellite radios purchases electronic components as modules. The reliabilities of components differ by supplier (see diagram, below). Suppose that the configuration of the components is given by: 2 0 -0-00 Note that one very critical component has two modules as "backup" in parallel with the main unit. The components can be purchased from three different suppliers. The reliabilities of the components are as follows: 0.98 Component Supplier 1 Supplier 2 Supplier 3 0.95 0.96 0.98 0.97 0.95 0.93 0.96 0.94 0.93 0.92 0.99 0.98 0.96 Transportation and purchasing considerations require that only one supplier be chosen Which one should be selected if the radio is to have the highest possible reliability? 0.99