Czochralski Crystal Puller Ingot Mold
A precision ingot mold designed for Czochralski crystal growers used in semiconductor wafer production from high-purity silicon. It shapes the monocrystalline boule during the pulling process in metallurgical crystal growth. Classified under 8454.90.00 as an ingot mold part for metallurgy.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in non-metallurgical crystal growth
Parts for general semiconductor manufacturing taps not specific to metallurgy fall under Chapter 84 machinery parts.
If imported as standalone refractory crucible without machine context
Pure refractory ceramic containers are classified by material in Chapter 69, not as metallurgical machine parts.
If incorporates crystal measurement sensors
Parts with integrated optical measuring devices shift to Chapter 90 for precision instruments.
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Import Tips & Compliance
• Verify material compatibility (e.g
• quartz or graphite) with HTS documentation for semiconductor-grade metallurgy
• Include technical specs proving use in monocrystalline ingot casting to avoid reclassification as general machinery parts
• Obtain supplier certifications for purity levels to meet foundry import standards
Related Products under HTS 8454.90.00
Float Zone Crystal Grower Ladle Liner
A replaceable liner for ladles in float zone semiconductor crystal growing furnaces, used in metal foundry processes for purifying silicon rods. It withstands high temperatures during zone melting in metallurgy. Falls under 8454.90.00 as parts of casting machines for metallurgy.
Semiconductor Wafer Casting Converter Nozzle
High-precision nozzle for converters in silicon casting machines used in metallurgy for semiconductor wafer production. It controls molten silicon flow during ingot formation in foundries. Classified in 8454.90.00 as converter parts for metallurgical casting.
Crystal Boule Casting Ladle Assembly
Modular ladle assembly for ingot casting machines in semiconductor metallurgy, handling molten polysilicon for boule formation. Used in metal foundries for wafer precursor production. HTS 8454.90.00 covers such ladle parts.
Silicon Ingot Mold Grinding Fixture
Fixture part for holding ingot molds during precision grinding in semiconductor metallurgy preparation. Ensures diameter accuracy for crystal boules used in wafer slicing. As a part of casting machine tooling, it's under 8454.90.00.
Metallurgical Casting Machine Refractory Lid
Refractory lid for converters and ladles in silicon casting machines for semiconductor foundries. Maintains thermal containment during molten metal handling in metallurgy. Classified as 8454.90.00 parts.
Semiconductor Ladle Tilt Mechanism
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