METHOD FOR PRODUCING POLYCRYSTALLINE SILICON

• Main Authors: POPP, FRIEDRICH, HERTLEIN, HARALD
• Format: Patent
• Language: English; French
• Published: 12.03.2019
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; CHEMISTRY; COMPOUNDS THEREOF; CRYSTAL GROWTH; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; REFINING BY ZONE-MELTING OF MATERIAL; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; SINGLE-CRYSTAL-GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

The invention relates to a method for producing granulated polycrystalline silicon in which polycrystalline silicon is deposited on carrier bodies heated by direct passage of electric current which enables polycrystalline silicon rods to be produced. Said carrier bodies are maintained on a base plat...