How to Calculate Depth of Focus?
Depth of Focus calculator uses Depth of Focus = Proportionality Factor*Wavelength of Light/(Numerical Aperture^2) to calculate the Depth of Focus, The Depth of Focus formula is defined as a critical parameter that influences the tolerance to variations in the height of the semiconductor wafer. Depth of Focus is denoted by DOF symbol.
How to calculate Depth of Focus using this online calculator? To use this online calculator for Depth of Focus, enter Proportionality Factor (k_{2}), Wavelength of Light (λ_{L}) & Numerical Aperture (NA) and hit the calculate button. Here is how the Depth of Focus calculation can be explained with given input values -> 1.3E+12 = 3*2.23E-07/(0.717^2).