Testing and inspection

Which correctly describes ATE (automatic test equipment)?

  1. AEquipment that applies test patterns and compares outputs with expected values to judge pass or fail
  2. BEquipment that exposes circuit patterns onto wafers
  3. CEquipment that cleans wafers
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Answer: A. Equipment that applies test patterns and compares outputs with expected values to judge pass or fail

ATE (Automatic Test Equipment) is used to test semiconductors: it supplies power and signals to the chip under test, measures the outputs, compares them with expected values and judges pass or fail. It is used with a prober in wafer test and with a handler in final test.

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More Testing and inspection questions

  1. In wafer test, what is it called to push the probe needles slightly further after they touch the bond pads to ensure contact?
  2. Which pair correctly names the two properties that design for testability aims to improve?
  3. What is the test called that judges chips by running an OS and applications in an environment close to actual use?
  4. Which quality metric expresses the number of defects per million shipped products?
  5. What is the main purpose of testing in semiconductor manufacturing?