Spin Coating Thickness Calculator
Input
Evaporation rate vs. spin speed
Grows with sqrt(rpm) (Meyerhofer)
Constant (independent of rpm)
Model
Emslie-Bonner-Peck (1958)
Meyerhofer (1978)
Flack et al. (1984), depth-averaged
Viscosity law
Exponential, k_eta (generic)
Flack Table I (PMMA, measured)
Solids fraction from
Volume fraction directly
From weight fraction + densities
Film Thickness vs. Spin Speed
Plot range:
to
rpm
Show uncertainty band
Result
--
Statistical Deviation
Method
None
Gauss (analytic)
Monte Carlo
Distribution shape (Monte Carlo)
Normal distribution (Gauss)
Uniform distribution
Triangular distribution
Advanced model: each sample re-solves the full ODE, so this isn't live -- click to (re)compute:
Run Monte Carlo
Uncertainties (+/-, 0 = none):