What is TDDB (time-dependent dielectric breakdown)?

TDDB (time-dependent dielectric breakdown) in the explanations

• BEOL TDDB is therefore a key reliability metric, and local spacing reductions from via misalignment are tightly controlled.

  What is the time-dependent dielectric breakdown of the insu…

• TDDB (Time Dependent Dielectric Breakdown) is a phenomenon in which even an electric field too weak to cause immediate breakdown, applied for a long time, gradually creates defects in the dielectric, eventually leading to breakdown.

  Which correctly describes TDDB (time-dependent dielectric b…

• At actual operating voltage, TDDB failures take years to occur.

  In TDDB lifetime evaluation, why are tests run at voltages …

Questions that mention TDDB (time-dependent dielectric breakdown) (6)

1. What is the time-dependent dielectric breakdown of the insulator between wires called, which is becoming more important as wire spacing shrinks?
2. Which correctly describes TDDB (time-dependent dielectric breakdown)?
3. In TDDB lifetime evaluation, why are tests run at voltages higher than the actual operating voltage?
4. When extrapolating TDDB test results to operating voltage, there is the E model, which expresses lifetime as an exponential of field, and the 1/E model, which uses the reciprocal of field. Which statement about their difference is correct?
5. What failure can occur when a voltage far above the rating is applied between the gate and source of a MOSFET?
6. What is the approximate breakdown field of high-quality thermal oxide (SiO2)?

Related terms

CMP ESD (electrostatic discharge) Arrhenius model Bathtub curve Electromigration FIT rate Hot carrier injection (HCI) Latch-up MTTF (mean time to failure) NBTI (negative bias temperature instability)