Testing and inspection

Which items are mainly checked in a semiconductor DC test?

  1. ALeakage current and voltage levels of I/O pins, and supply current
  2. BOnly the logic function of the circuit
  3. CThe appearance of the package
Show answer and explanation

Answer: A. Leakage current and voltage levels of I/O pins, and supply current

A DC test measures whether DC electrical characteristics meet specifications, such as I/O pin leakage current, output voltage levels, and standby and operating supply current. Logic function is checked by functional tests and timing by AC tests.

Practice this topic Back to topic

More Testing and inspection questions

  1. Which correctly describes BIST (built-in self-test)?
  2. Which correctly describes a probe card?
  3. Which correctly describes the stuck-at fault model used in testing logic circuits?
  4. Which is the correct definition of fault coverage for test patterns?
  5. What is KGD (Known Good Die), which is important when mounting several chips in one package?