Czochralski Crystal Puller Ingot Mold
A specialized ingot mold designed for use in Czochralski crystal growers and pullers to produce monocrystalline silicon boules for semiconductor wafers. It falls under HTS 8454.90.0080 as a part of casting machines used in metallurgy for high-purity semiconductor material production. The mold ensures precise thermal gradients during the crystal growth process.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for general semiconductor processing machines not tied to metallurgy
Parts for semiconductor fab equipment outside metallurgical casting fall under machinery parts in Chapter 84.
If made primarily of refractory ceramics and sold separately
Refractory ceramic goods like quartz crucibles shift to Chapter 69 when not specifically as machine parts.
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Import Tips & Compliance
• Verify material compatibility with silicon melting (e.g
• quartz or graphite) for classification; provide technical specs proving semiconductor end-use to avoid reclassification
• Ensure exporter certificates match HTS description to prevent customs holds
Related Products under HTS 8454.90.00.80
Float Zone Crystal Grower Crucible
High-purity graphite crucible used in float zone crystal growers to process semiconductor-grade silicon into monocrystalline boules. Classified under HTS 8454.90.0080 as a part of metallurgical casting machines for ingot production. Critical for maintaining zone purity during RF-heated melting.
Silicon Wafer Ingot Casting Ladle
Refractory-lined ladle for transferring molten polysilicon into crystal grower molds in semiconductor metallurgy. Fits HTS 8454.90.0080 as a ladle part for metal foundry casting machines. Ensures contamination-free pouring for boule formation.
Gallium Arsenide Ingot Mold Assembly
Precision machined mold assembly for casting GaAs compound semiconductor ingots in metallurgical crystal pullers. Under HTS 8454.90.0080 as parts of casting machines for metal foundries producing semiconductor materials.
Crystal Boule Grinder Ladle Insert
Replaceable insert for ladles used in post-casting handling of semiconductor crystal boules before grinding. Classified in HTS 8454.90.0080 as other parts of metallurgical converters and ladles.
Semiconductor Ingot Casting Converter Nozzle
High-temperature nozzle for converters in silicon ingot casting systems, controlling melt flow in metallurgical foundries. HTS 8454.90.0080 covers it as a part of casting converters.
Monocrystalline Silicon Casting Machine Frame Part
Structural frame component for ingot casting machines used in semiconductor boule production. Falls under HTS 8454.90.0080 as other parts of metallurgical casting machines.