Question

Suppose a wafer has the diameter of 300mm and costs $220, a die is a 16x9...

Suppose a wafer has the diameter of 300mm and costs $220, a die is a 16x9 mm square, the defect rate is 0.042‰ per square mm, the cost of packaging and testing is $30, and the final chip test yield is 99%. How many dollars should a chip be sold for so that the profit margin is 35%? Profit margin = (net profit) / cost * 100%, and net profit = sale price - cost.
To do the calculation, use the formulas provided in the slides. Use 3.1415 for Π (Pi). Round the result to the nearest tenth. Make sure there is one digit after the decimal point. For example, 2 must be written as 2.0.

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