Testing and inspection

For automotive semiconductors, what is the main reason for testing not only at room temperature but also at high and low temperatures?

  1. ATo guarantee correct operation over the wide temperature range in which they are used
  2. BTo shorten test time
  3. CTo lower test cost
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Answer: A. To guarantee correct operation over the wide temperature range in which they are used

Cars are used over a very wide temperature range, from cold regions to engine compartments under a blazing sun. Semiconductor characteristics change with temperature, so tests at high and low temperatures confirm that specifications are met across the entire guaranteed range.

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More Testing and inspection questions

  1. In memory testing, which test pattern repeats writing and reading 0s and 1s while stepping through addresses in order, detecting defects such as interference between adjacent cells?
  2. Which correctly describes ATE (automatic test equipment)?
  3. In wafer test, what is it called to push the probe needles slightly further after they touch the bond pads to ensure contact?
  4. Which pair correctly names the two properties that design for testability aims to improve?
  5. What is the test called that judges chips by running an OS and applications in an environment close to actual use?