Graphite Bottom Heater

Graphite Bottom Heater is an auxiliary heating element located beneath the crucible in a Czochralski (CZ) furnace. It works in conjunction with the main heater to provide supplementary bottom heat, ensuring a stable and uniform thermal field for high-quality monocrystalline silicon growth.

Wooden box package

• Made from high-purity, fine-grained graphite
• High thermal stability and oxidation resistance in controlled atmospheres
• Designed for precise and independent power control
• Optimized geometry for effective radiative heating to the crucible bottom

• Enhances overall temperature uniformity within the crucible
• Enables precise control of melt convection and impurity distribution (e.g., oxygen)
• Stabilizes the solid-liquid interface for lower defect density
• Improves process stability and increases crystal yield

• Used as a critical auxiliary heating component in Czochralski (CZ) furnaces for producing monocrystalline silicon ingots.
• Essential for manufacturing high-efficiency photovoltaic cells and semiconductor-grade silicon.

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