Bond Wire Inductance Calculator
Estimate the parasitic inductance of an isolated round bond wire as 0.2·l·(ln(4·l/d)-0.75) nH where l and d are length and diameter in mm. Assumes straight wire in free space and l >> d.
Description
Estimate the parasitic inductance of an isolated round bond wire as 0.2·l·(ln(4·l/d)-0.75) nH where l and d are length and diameter in mm. Assumes straight wire in free space and l >> d.
Bond Wire Inductance Calculator is a focused tool for the following task. Estimate the parasitic inductance of an isolated round bond wire as 0.2·l·(ln(4·l/d)-0.75) nH where l and d are length and diameter in mm. Assumes straight wire in free space and l >> d. It reports Inductance from the values you provide rather than inventing measurements, coefficients, or professional judgment that are not part of the input.
When to use Bond Wire Inductance
Use this semiconductor calculation for first-order device, material, fabrication, interconnect, packaging, or reliability estimates when every coefficient and unit convention is known.
- Wire length (mm)
- Required number in mm. Length of the bond wire. Must be greater than 0 mm.
- Wire diameter (mm)
- Required number in mm. Diameter of the round bond wire. Must be greater than 0 mm.
The cited overview of Integrated circuit supplies background for the terminology and domain context used by this tool.1
How Bond Wire Inductance works
Estimate the parasitic inductance of an isolated round bond wire as 0.2·l·(ln(4·l/d)-0.75) nH where l and d are length and diameter in mm. Assumes straight wire in free space and l >> d. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.
- Inductance (nH)
- Returned number in nH. Estimated positive parasitic inductance for a slender isolated round wire.
Limitations and assumptions
- Material composition, geometry, process history, temperature, electric field, bias, interfaces, parasitics, and fitted parameter ranges can invalidate a compact semiconductor model.
- Wire length must be at least 5e-324.
- Wire diameter must be at least 5e-324.
- 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
-
Integrated circuit — Wikipedia contributors
Similar or alternative tools
- Ballistic Mean Free Path Calculator
Estimate the ballistic mean free path from low-field mobility using λ = (μ·Vt/vsat)·1e7 with thermal voltage Vt=0.02585 V (300 K) and saturation velocity vsat=1e7 cm/s (λ[nm]=μ·0.02585). Input mobility μ>0 cm²/V·s must be the low-field, non-degenerate value; rpm vs linear-velocity and per-area vs total distinctions do not apply. Model assumes Maxwell-Boltzmann statistics and constant vsat, valid only near 300 K as a quasi-ballistic estimate.
- CdSe Quantum Dot Diameter from Absorption Peak
Estimate CdSe quantum-dot diameter from the first excitonic absorption peak using the Yu empirical fit; photoluminescence emission peaks are not interchangeable with this calibration.
- Wire Loop Height Calculator
Estimate the apex height of a symmetric wire bond loop from its bond-to-bond span and loop angle.