Physical constants

Physical constants and unit conventions used across reASITIC.

Conventions inherited from the original ASITIC binary:

  • Lateral lengths are in microns at the user/REPL boundary.

  • Numerical kernels (e.g. Grover formulas) consume lengths in cm; the conversion factor 1e-4 (μm → cm) is baked in to the kernels — see inductance.grover where the call sites pre-multiply by UM_TO_CM before invoking the closed-form expression.

  • Inductance is reported in nH.

  • Frequency is in GHz.

  • Resistance is in Ω.

Recovered from the decompiled C: every coordinate-bearing kernel function performs x = x * 0.0001 before invoking the inductance math (see check_segments_intersect in asitic_kernel.c).