METHOD FOR MANUFACTURING A SINGLE CRYSTAL BY SOLUTION GROWTH ENABLING TRAPPING OF PARASITIC CRYSTALS
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United States of America Patent
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Nov 11, 2021
app pub date -
Oct 14, 2019
filing date -
Oct 17, 2018
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Abstract
A method for manufacturing a single crystal may be by solution growth from a seed crystal, in a unit including a tank and a growth platform having a lower plate. The method may include: fastening the seed to the lower plate; introducing a crystallization solution of density dS into the tank; treating the solution in order to render it supersaturated; bringing the seed into contact with the supersaturated solution; rotating the platform until the single crystal is obtained. Before bringing the seed into contact with the supersaturated solution, the method may include forming, in the tank, of a zone for trapping parasitic crystals of density dC by introducing, into the tank, a liquid, immiscible with the growth solution, of density d>dS and d
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