Czochralski Crystal Puller Nozzle Assembly
This nozzle assembly is a precision-engineered part used in Czochralski crystal growers for directing the flow of molten silicon during monocrystalline boule formation in semiconductor manufacturing. It falls under HTS 8424.90.9080 as a part of a mechanical appliance for projecting liquids (molten semiconductor material). Classified here due to its role in jet projecting high-temperature liquids in crystal growth equipment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered machinery part not specific to projecting
Parts of industrial machinery not fitting Chapter 84 spray/projecting categories default to 8487 as other machinery parts.
If for semiconductor testing equipment integration
If primarily for wafer testing apparatus rather than crystal growth, falls under Chapter 90 measuring/testing instruments.
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Import Tips & Compliance
• Obtain manufacturer's declaration confirming use in semiconductor crystal growth to support classification; ensure documentation specifies material compatibility with molten silicon; watch for reclassification if sold as complete grower unit
Related Products under HTS 8424.90.90.80
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Crystal Grinder Slurry Spray Head
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Float Zone Crystal Furnace Gas Injector
Injector nozzle for float zone crystal growers that disperses inert gases to stabilize the molten zone during monocrystalline semiconductor production. Classified in HTS 8424.90.9080 as a part for jet projecting gases/powders in crystal pulling machines. Key for defect-free boule growth.
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Semiconductor Spray Cleaning Gun Head
Replaceable head for spray guns used in cleaning semiconductor wafers between processing steps, dispersing deionized water or chemicals. Fits HTS 8424.90.9080 as a part of spray guns for semiconductor manufacturing. Removes contaminants without surface damage.