Polycrystalline silicon rod
A polycrystalline silicon rod is formed of polycrystalline silicon deposited radially around a silicon core line and is characterized by, in a cross-section that is a perpendicular cut in respect to the axial direction of a cylindrical rod, a ratio of surface area covered by coarse crystal particles...
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| creator | Ishida, Haruyuki Imura, Tetsuya Aimoto, Yasumasa |
| description | A polycrystalline silicon rod is formed of polycrystalline silicon deposited radially around a silicon core line and is characterized by, in a cross-section that is a perpendicular cut in respect to the axial direction of a cylindrical rod, a ratio of surface area covered by coarse crystal particles having a diameter of 50 μm or greater is 20% or more of the crystal observed at the face, excluding the core line portion. |
| format | Patent |
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| 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 |
| title | Polycrystalline silicon rod |
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