Your colleague at Sun suggests that, since the yield is so poor, it might make sense to
Question:
a. Using the yield equation for the defect rate above, what is the probability that a defect will occur on a single Niagara core (assuming the chip is divided evenly between the cores) in an 8-core chip?
b. What is the probability that a defect will occur on one or two cores (but not more than that)?
c. What is the probability that a defect will occur on none of the cores?
d. Given your answers to parts (b) and (c), what is the number of 6- core chips you will sell for every 8-core chip?
e. If you sell your 8-core chips for $150 each, the 6-core chips for $100 each, the cost per die sold is $80, your research and development budget was $200 million, and testing itself costs $1.50 per chip, how many processors would you need to sell in order to recoup costs?
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Related Book For
Computer Architecture A Quantitative Approach
ISBN: 978-0123704900
4th edition
Authors: John L. Hennessy, David A. Patterson
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