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Materials Calculators


Fill Rate Calculator

Instructions for use:
Input the Crucible Liner Volume, Select Material (if not available in menu, manually input Material Density in g/cm3), and input fill rate %.

KJLC recommends a fill rate between 67-75%. Overfilling the crucible will cause the material to spill over and create an electrical short between the liner and the hearth causing the crucible to crack. Placing too little material in the crucible or allowing the melt level to get too low can be detrimental to the process as well. When the melt level is below 30%, the e-beam is likely to strike the bottom or walls of the crucible which immediately results in breakage.

The fill rate above assumes that the material is fully melted and does not take into account packing density. It should be noted that the crucible liner may need to be loaded multiple times, pre-melted, and topped off in order to achieve the final desired melt level/fill rate. When loading the crucible, do not load more than 80% of the height of the crucible liner.

This calculator is for estimation purposes only.



Crucible Liner Volume:
 (in cc)
Material:

                             - or -
Enter the density of the material in g/cm3:
Fill Rate %:

Result



Material Needed to Deposit a 1 Micron Film Calculator

Instructions for use:
Input distance from source to substrate and Select Material (if not available in menu, manually input Material Density in kg/m3).

This calculator is for estimation purposes only. It is calculated based on the source to substrate distance as the radius of a hemisphere, calculating the area of that hemisphere, and applying the density of the material and desired film thickness to that number (1 micron in this case).



Distance of source to substrate:
(in cm)
Material:

                              - or -
Enter the density of the material in kg/m3:
Multiplier:
Mass for 1 micron layer




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