The manufacture of flat panel displays includes two basic steps:

(1) fabrication of the display, in which many pixels are fabricated on a glass substrate, and

(2) assembly of the display into a housing containing the driver chips. Suppose for the fabrication step there is an upper specification limit on the number of failed pixels per display.

Assume failed pixels exceeding the spec limit is the only failure mechanism in fabricating the display. Suppose the process performance index for fabrication is 0.8. In the assembly step, suppose there are upper and lower specification limits on the current drawn by the driver chips in an assembled unit. Assume exceeding the spec limits for current is the only failure mechanism in the assembly step. Suppose the assembly step has a process capability index of 1.4 and a process performance index of 0.9. What is the yield of manufacturing flat panel displays?