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Electromigration Lifetime Calculator
M
T
T
F
=
A
⋅
j
−
n
⋅
e
E
a
k
T
MTTF = A \cdot j^{-n} \cdot e^{\frac{E_a}{kT}}
MTTF
=
A
⋅
j
−
n
⋅
e
k
T
E
a
MTTF
= Mean Time To Failure (hours)
A
= Constant (user-defined)
j
= Current density (A/cm²)
n
= Current density exponent
E
a
= Activation energy (eV)
T
= Temperature (K)
k
= Boltzmann constant = 8.617×10⁻⁵ eV/K
Material
Ea (eV)
n
Aluminum (Al)
0.5–0.7
1–2
Copper (Cu)
0.7–1.0
1–2
Silver (Ag)
~0.6
1–2
MTTF (hrs)
Current Density (A/cm²)
Temperature (°C)
Activation Energy (eV)
Exponent (n)
Constant (A)
MTTF (hrs): 7259.97
Solve for MTTF. Adjust inputs and select a different variable to solve for.
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