Quartz crucible and single crystal thermal field
The utility model discloses a quartz crucible and a single crystal thermal field, relates to the technical field of czochralski single crystal, and provides a technical scheme for reducing the failure reaction of the outer side of the outer layer of the quartz crucible and prolonging the service lif...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a quartz crucible and a single crystal thermal field, relates to the technical field of czochralski single crystal, and provides a technical scheme for reducing the failure reaction of the outer side of the outer layer of the quartz crucible and prolonging the service life of the crucible. The quartz crucible comprises a first quartz layer, a quartz lamination layer and a second quartz layer. The first quartz layer, the quartz laminated layer and the second quartz layer are laminated in the direction from the inner layer to the outer layer of the quartz crucible. Wherein the quartz lamination at least comprises a first quartz bubble layer, the number of bubbles in unit area in the first quartz layer and the second quartz layer is smaller than the number of bubbles in unit area in the quartz bubble layer, and the size parameters of the bubbles in the first quartz layer and the second quartz layer are smaller than the size parameters of the bubbles in the quartz bubble layer.
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