Superconducting magnets for Silicon Single-Crystal Pullers
WEBJul 8, 2021 · From 1988, Toshiba has manufactured over 500 superconducting magnets for Silicon Single-Crystal Pullers.（MCZ：Magnetic field applied Czochralski） At present, Toshiba has the following types of products. We can provide magnetic field distribution according to your request.
Design of follow-up superconducting Cusp magnetic field and …
WEBOct 1, 2023 · The MCZ method utilizes the Superconducting Cusp magnetic field. This magnetic field effectively suppresses melt convection and reduces the occurrence of crystal impurity ripples by producing radial and axial magnetic lines.
Design and optimization of superconducting CUSP …
WEBAug 1, 2023 · A hybrid strategy of the multiphysics field coupling method, Group Method of Data Handling (GMDH) type neural network identification, and the Multiple Objective Snake Optimizer (MOSO) algorithm was proposed to optimize the superconducting CUSP electromagnetic field structure.
Analysis of the effect of symmetric/asymmetric CUSP magnetic …
WEBOct 15, 2016 · We studied the influence of CUSP magnetic field on the interface shape during MCz growth of 300 mm silicon crystals in an industrial furnace. It was found that a symmetric magnetic field is not capable of suppression of …
Czochralski Silicon Single Crystals for Semiconductor and Solar …
WEBMagnetic Czochralski (MCZ) Silicon. As the diameter of the crystal increases we need to stabilize the flow of the melt. There have been a lot of papers regarding the magnetic-field-applied Czochralski method, especially for large-diameter crystals [8.35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45].
Optimization design method for cusp magnetic field of MCZ …
WEBThe invention discloses an optimization design method for a cusp magnetic field of an MCZ single crystal furnace, which comprises a magnetic field structural parameter optimization design and a...
WEBCrystal MCZ 6, for which the field strength was halved, reveals an oxygen content in between the reference and the ingots grown in maximum magnetic field. The crystal MCZ 3 which was grown with the CUSP plane below the melt level shows a significantly higher oxygen concentration. The carbon content is in the same
GSMAC-FEM analysis of single-crystal growth by cusp MCZ …
WEBWe present the numerical analysis of the growth of a silicon (Si) single crystal. In the MCZ (Magnetic-field-applied Czochralski) method, two magnetic fields that stand opposite to each other generate a cusp magnetic field.
Numerical simulation of effects of cusp magnetic field on oxygen ...
WEBOct 5, 2012 · Abstract. In magnetic Czochralski (MCZ) silicon growth, the distance and diameter of the electrified coils may affect the magnetic field intensity and melt flow. By changing the above parameters, the optimum geometric …
Superconducting Magnets for MCZ | INDUSTRY | Sumitomo …
WEBCusp magnetic field type magnets. A cusp magnetic field is applied to the silicon melt by a pair of upper and lower superconducting coils.