Inverse-Field TDDB Lifetime Calculator
Estimate time-dependent dielectric breakdown lifetime with an empirical inverse-field acceleration model, t = t0 exp(G/E).
Description
Estimate time-dependent dielectric breakdown lifetime with an empirical inverse-field acceleration model, t = t0 exp(G/E).
Inverse-Field TDDB Lifetime Calculator is a focused tool for the following task. Estimate time-dependent dielectric breakdown lifetime with an empirical inverse-field acceleration model, t = t0 exp(G/E). It reports Lifetime from the values you provide rather than inventing measurements, coefficients, or professional judgment that are not part of the input.
When to use Inverse-Field TDDB Lifetime
Use this semiconductor calculation for first-order device, material, fabrication, interconnect, packaging, or reliability estimates when every coefficient and unit convention is known.
- Characteristic time (s)
- Required number in s.
- Characteristic field (MV/cm)
- Required number in MV/cm.
- Operating field (MV/cm)
- Required number in MV/cm.
The cited overview of Semiconductor device supplies background for the terminology and domain context used by this tool.1
How Inverse-Field TDDB Lifetime works
Estimate time-dependent dielectric breakdown lifetime with an empirical inverse-field acceleration model, t = t0 exp(G/E). Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.
- Lifetime (s)
- Returned number in s.
Limitations and assumptions
- Material composition, geometry, process history, temperature, electric field, bias, interfaces, parasitics, and fitted parameter ranges can invalidate a compact semiconductor model.
- Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.
Alternative or Complementary approaches
Compare the estimate with measured process data, current device documentation, and a higher-fidelity circuit, field, thermal, quantum, or TCAD model when the decision requires it.
References
-
Semiconductor device — Wikipedia contributors
Similar or alternative tools
- TDDB Weibull Failure Fraction Calculator
Compute the time dependent dielectric breakdown failed fraction from stress time using a two-parameter Weibull model.
- Band-to-Band Tunneling Calculator
Estimate band-to-band tunneling current from the junction field through a field-driven exponential: I[nA]=coeff·E·exp(-E0/E) with E=electricFieldMVPerCm>0 MV/cm, E0=characteristicFieldMVPerCm>0 MV/cm, coeff=tunnelingCoefficient>=0 nA/(MV/cm). Defaults E0=40 MV/cm, coeff=1 nA/(MV/cm). Simplified Kane-like model; neglects barrier shape, temperature, and trap-assisted contributions; valid only for E comparable to E0 and for the fitted material.
- Avalanche Breakdown Voltage Calculator
Estimate one-sided abrupt-junction avalanche breakdown voltage from the peak critical field and depletion width: Vb ≈ Ecrit·W/2. The factor 50 converts MV/cm·µm to volts and includes the triangular-field factor of one half. The estimate neglects curvature, edge termination, and the full ionization integral.