ANORDNUNG ZUR HERSTELLUNG VON KRISTALLSTÄBEN MIT DEFINIERTEM QUERSCHNITT UND KOLUMNARER POLYKRISTALLINER STRUKTUR MITTELS TIEGELFREIER KONTINUIERLICHER KRISTALLISATION

摘要

The invention relates to a device for the production of crystal rods having a defined cross-section and a column-shaped polycrystalline structure by means of floating-zone continuous crystallization, comprising at least one crucible filled with crystalline material, provided with a central deviation for transporting the contents of the crucible to a growing crystal rod arranged below the crucible, whereby the central deviation plunges into the melt meniscus, also comprising means for continuously adjustable provision of crystalline material to the crucible, and means for simultaneously feeding the melt energy and adjusting the crystallization front. In order to produce crystal rods having a defined diameter and a column-shaped polycrystalline structure using heating means which are technically less complex, while at the same time guaranteeing high crystallization rates and stable phase definition, the means for simultaneously feeding the melt energy and adjusting the crystallization front on the growing crystal rod ( 8 ) is a flat induction coil ( 5 ) which has an opening, said induction coil ( 5 ) being arranged at a distance from the crucible ( 4 ) and/or being vertically moveable in relation to the crystallization front.