Convert Femtohenries to Attohenries
Convert Femtohenries (fH) to Attohenries (aH) instantly and accurately.
Conversion Formula
aH = fH × 1000
About Femtohenries
The femtohenry (fH) equals 10⁻¹⁵ H, the scale for PCB via inductances, short bondwires, and on-chip spiral inductor parasitics in millimetre-wave design. A 0.5 mm gold bondwire has about 0.5-1 fH inductance at mm-wave frequencies; differential pair stubs in 100 GHz SerDes are modelled in femtohenries; Josephson junction loop inductances in superconducting circuits are a few hundred fH. 1 fH = 10⁻³ pH = 10⁻¹⁵ H.
About Attohenries
The attohenry (aH) equals 10⁻¹⁸ H, the scale for parasitic inductances in on-chip metal interconnects and quantum-device bondwires. Metal traces in sub-10 nm CMOS processes have via-to-via inductances in the attohenry range; superconducting qubit junctions are modelled with loop inductances of tens to hundreds of attohenries; microwave integrated circuit (MMIC) vias at 100 GHz are characterised in aH. 1 aH = 10⁻³ fH = 10⁻¹⁸ H.
Quick Reference Table
| Femtohenries (fH) | Attohenries (aH) |
|---|---|
| 1 fH | 1000 aH |
| 2 fH | 2000 aH |
| 5 fH | 5000 aH |
| 10 fH | 10000 aH |
| 25 fH | 25000 aH |
| 50 fH | 50000 aH |
| 100 fH | 100000 aH |