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    • 3. 发明专利
    • NO20045319L
    • 2004-12-03
    • NO20045319
    • 2004-12-03
    • PV SILICON FORSCHUNGS UND PROD
    • ABROSIMOV NICOLAI VRIEMANN HELGE
    • B22D11/01C01B33/02B22D11/00C30B13/00C30B13/20C30B15/00C30B15/08H01L21/208
    • 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.
    • 5. 发明专利
    • Verfahren und Vorrichtung zur Herstellung von Siliziumdünnstäben
    • DE102009005837A1
    • 2010-07-22
    • DE102009005837
    • 2009-01-21
    • PV SILICON FORSCHUNGS UND PROD
    • RIEMANN HELGESCHULZE FRIEDRICH-WILHELMRENNER MATTHIASFISCHER JOERG
    • C30B13/00C01B33/035C30B13/20
    • Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung von Siliziumdünnstäben, wie sie beim herkömmlichen Siemens-Verfahren für die Siliziumabscheidung verwendet werden. Durch den stark steigenden Bedarf an Silizium für Halbleiter und Solarzellen steigt auch der Bedarf an Siliziumdünnstäben. Das erfindungsgemäße Verfahren entspricht grundsätzlich dem klassischen Pedestal-Verfahren. Erfindungsgemäß weist die verwendete Induktionsspule (1) um die stromumflossene Zentralöffnung (4) herum weitere Ziehöffnungen (5.1, 5.2, 5.3, 5.4) auf. Im Vorratsstab unter der Induktionsspule (1) wird ein ausreichend gleichmäßiges Temperaturprofil erzeugt, dass die Kuppe des Vorratsstabes schmilzt und ein Schmelzensee entsteht (6.1) auf (6). Durch die weiteren Ziehöffnungen in der Induktionsspule kann jeweils ein Siliziumdünnstab (9.1, 9.2, 9.3, 9.4) aus dem Schmelzensee nach oben gezogen werden. Im Gegensatz zum bekannten Stand der Technik wird durch die stromumflossene Zentralöffnung kein Stab nach oben gezogen. Die weiteren zusätzlichen Ziehöffnungen sind vorzugsweise konzentrisch zur Zentralöffnung und mit einem ausreichenden Abstand zum Außenrand des Vorratsstabes (6) angeordnet. Ihr Abstand zueinander ist so gewählt, dass die wachsenden Siliziumdünnstäbe sich gegenseitig thermisch nicht zu stark beeinflussen, damit die einzelnen Siliziumdünnstäbe möglichst gleich wachsen. Je größer der Durchmesser des verwendeten Si-Rohstabes ist, desto größer kann auch der ...
    • 6. 发明专利
    • DK1509642T3
    • 2007-11-05
    • DK03724889
    • 2003-05-06
    • PV SILICON FORSCHUNGS UND PROD
    • ABROSIMOV NIKOLAI VRIEMANN HELGE
    • B22D11/00C30B15/08B22D11/01C01B33/02C30B13/00C30B13/20C30B15/00H01L21/208
    • 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.
    • 7. 发明专利
    • DE10220964B4
    • 2006-11-02
    • DE10220964
    • 2002-05-06
    • PV SILICON FORSCHUNGS UND PROD
    • ABROSIMOV NIKOLAI VRIEMANN HELGE
    • B22D11/00C30B15/08B22D11/01C01B33/02C30B13/00C30B13/20C30B15/00H01L21/208
    • 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.