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How Foundries Calculate Die Yield
Understanding the metric that Intel used to abandon a whole technology node.
Semiconductor foundries, like most manufacturers, are unable to get every chip to work due to varying tolerances, faults, and physical limitations in real-world contexts. A semiconductor foundry, such as Intel, Samsung or TSMC, invests a significant amount of money and effort to boost process yields, which are often targeted to be greater than 90%. N. Kumar, K. Kennedy, K. Gildersleeve, R. Abelson, C. M. Mastrangelo, and D. C. Montgomery, “A review of yield modelling techniques for semiconductor manufacturing,” International Journal of Production Research, vol.
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