An IC fab is producing semiconductor chips. All the circuits are to be tested...

The process line has a final yield of 95%.

The automatic test equipment (ATE) put in place has the following characteristics:

1. When an IC is OK, the ATE test confirms it at a probability of 96%

2. When an IC is BAD, ATE test rejects it with a probability of 98%

Just before shipment to customer, one circuit is randomly selected.

Questions:

1. What is the probability the ATE tester has been wrong?

2. What is the probability that an IC (tested good) is in fact bad?

Try to be among the first ones giving the correct answers!

Good luck!

P.S. If you have colleagues around you and who can be interested in such quizzes, please pass the information!

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**編集者:**StephenV、編集時刻: 19 Sep 2023 日 12:59 PM 時 (GMT -4)]