Use this semiconductor calculation for first-order device, material, fabrication, interconnect, packaging, or reliability estimates when every coefficient and unit convention is known.

Photon energy (J)

Required number in J. Energy per EUV photon; 13.5 nm light carries about 1.4725e-17 J.

Photons per µm² (photons/um^2)

Required number in photons/um^2. Incident photon fluence per square micrometer. An expected or averaged fluence may be fractional.

The cited overview of Photolithography supplies background for the terminology and domain context used by this tool.^[1]

Convert EUV photon fluence and energy per photon to incident energy dose in millijoules per square centimeter. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.

Incident dose (mJ/cm^2)

Returned number in mJ/cm^2. Incident areal energy dose. It is a dose-to-clear only when the input fluence is the measured clearing fluence.

• Material composition, geometry, process history, temperature, electric field, bias, interfaces, parasitics, and fitted parameter ranges can invalidate a compact semiconductor model.
• Photon energy must be at least 5e-324.
• Photons per µm² must be at least 5e-324.
• Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.

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.

• Dislocation Density from Etch Pits

  Convert a counted number of etch pits on a measured field area into a dislocation density per square centimeter. Formula: D [1/cm²] = N / (A [µm²]·1e-8), where 1 µm² = 1e-8 cm², N is integer pit count ≥0, A>0 µm². Output D≥0 1/cm²; D=0 when N=0. Assumes each pit corresponds to one threading dislocation, uniform distribution, and accurate field area measurement.

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  Compute laser slope efficiency in watts per ampere from differential quantum efficiency and photon energy, where W/A numerically equals the efficiency fraction times photon energy in electronvolts.

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  Calculate the antiphase boundary (APB) energy per unit area (mJ/m²) from the per-atom APB energy (eV/atom) and the planar atomic density (1/nm²). Model: E = apbEnergyPerAtom × atomDensity × 160.2176634 mJ·m⁻²/(eV·nm⁻²); assumes an ideal planar APB with uniform density. Per-area result is not the total boundary energy (multiply by area for total energy). apbEnergyEvPerAtom must be ≥0 eV (0 yields 0 mJ/m²); atomDensityPerNm2 must be >0 1/nm². No relaxation, segregation, or temperature dependence is included.