Lesson plan

Fault grading

Fault grading is a procedure that rates testability by relating the number of fabrication defects that can in fact be detected with a test vector set under consideration to the total number of conceivable faults. It is used for refining both the test circuitry and the test patterns iteratively, until a satisfactory fault coverage is obtained.

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Article summary

Fault grading is a procedure that rates testability by relating the number of fabrication defects that can in fact be detected with a test vector set under consideration to the total number of conceivable faults. It is used for refining both the test circuitry and the test patterns iteratively, until a satisfactory fault coverage is obtained.

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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