CHINA RARE METAL Advanced materials
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Resources · Engineering Workbench

Materials engineering calculators.

Calculate alloy stoichiometry and melt charges, estimate sputtering target mass and wafer yield, parse compound molar masses, check thermal and e-beam crucible compatibility, and convert nominal target dimensions.

Calculator 01 / Composition & Melt Charge

Alloy stoichiometry, mixture density & batch charge calculator

Convert multi-element compositions between atomic percent (at%) and weight percent (wt%), estimate theoretical mixture density (ρmix), compare against measured bulk density, and compute elemental melt charges for any batch weight.

IUPAC Atomic Weights · Ideal Volume Additivity
Element Atomic ratio (at%) Element density (g/cm³)
Stoichiometric & Charge Breakdown Live calculation
Calculator 02 / Target Geometry & Deposition Yield

Sputtering target mass, usable life & wafer yield estimator

Calculate geometric volume, theoretical target mass, usable sputtered mass, single-wafer film mass, and estimated wafers coated per target for circular discs, rectangular plates, and rotary tubes.

Planar & Rotary Geometries
Target Mass & Coating Lifespan Geometric & process estimate
Calculator 03 / Chemical Stoichiometry

Compound molar mass & elemental mass fraction calculator

Parse complex inorganic formulas—including parentheses and fractional dopants—to calculate exact molar mass (g/mol), atomic fraction (at%), and elemental mass contribution (wt%).

Supports Parentheses & Fractional Dopants
Tip for solid-state synthesis & ceramic targets: Use the elemental mass fractions (wt%) on the right to verify analytical certificates (GDMS / ICP-OES) or jump to Calculator 01 to compute multi-element melt charges.
Molar Mass & Elemental Breakdown IUPAC standard atomic weights
Calculator 04 / PVD & E-Beam Process Reference

Thermal & e-beam evaporation crucible selector & charge estimator

Check melting points, 10-4 Torr vapor-pressure temperatures, recommended resistive thermal boats, e-beam crucible liners, and single-hearth granule charge weights.

Boat & Liner Compatibility Matrix
Thermal & E-Beam Process Parameters 10⁻⁴ Torr baseline
Calculator 05 / Cathode Fit & Backing Plate

Nominal target dimension converter (mm ⇄ inch) & backing plate check

Convert circular and rectangular target dimensions between metric (mm) and imperial (inch) standards, calculate active sputtering surface area, and check backing plate flange allowances.

Metric ⇄ Imperial
Converted Specifications & Backing Plate Notes 1 in = 25.4 mm exact

Theoretical mixture densities assume ideal volume additivity without porosity or intermetallic phase volume change. Target mass and wafer yield estimates exclude backing plates and bonding layers and depend on chamber geometry and magnetron race-track profile. Final manufacturing tolerances and lot specifications are confirmed with your quotation.