latch-up

Definitions

Electronics

  • In an IC, a condition in which an unwanted self-sustaining high-conductivity path is formed between various pn junctions, resulting in a degradation in performance. latch-ups may be caused, for instance, by electrostatic discharges, ionizing radiation, or a high supply voltage.
  • The failure of a component or circuit to return to a previous or desired mode or state after a given stimulus. For example, the changing of a circuit to an unwanted mode by the application of an improper voltage, and a failure to revert to the desired mode after said voltage is removed.
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