Wafer Lapping Machine Slurry Jet Distributor
Distributor manifold projecting abrasive slurry jets onto wafer surfaces during lapping for flatness control in semiconductor processing. Classified HTS 8424.90.90.40 as part of powder-dispersing jet machines per statistical notes. Critical for achieving nanometer-level surface planarity.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If centrifuge/lapping equipment parts
Lapping machines sometimes classify under centrifuges if spin action dominates.
If other semiconductor processing machines
Complete machines go to 8479; parts may follow if not fitting 8424 jet criteria.
If metrology testing equipment
Flatness testing apparatus parts per statistical note.
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Import Tips & Compliance
• Document slurry composition tolerance and particle size control for classification support
• Use HTS advisory opinions for slurry vs liquid jet distinctions in semiconductor context
Related Products under HTS 8424.90.90.40
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Precision nozzle for projecting coolant jets onto diamond saw blades during wafer slicing from semiconductor boules. It qualifies for HTS 8424.90.90.40 as a part of jet projecting machines in wafer preparation equipment. High-pressure jets maintain blade cooling and flush debris for defect-free wafer slices.
Wafer Polishing Head Fluid Jet Nozzle
Nozzle array in polishing heads that projects polishing slurry jets for mirror-finish wafer surfaces in semiconductor fabrication prep. HTS 8424.90.90.40 applies to these jet projecting machine parts essential for sub-micron surface roughness. Ensures defect-free starting wafers for device processing.
Czochralski Crystal Puller Nozzle Assembly
This nozzle assembly is a critical part of Czochralski crystal pullers used in semiconductor wafer manufacturing to project inert gas jets for controlled crystal growth. It falls under HTS 8424.90.90.40 as a component of steam and similar jet projecting machines employed in high-purity monocrystalline silicon boule production. The precise jet projection ensures minimal contamination during the pulling process.
Float Zone Crystal Grower Jet Manifold
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Crystal Boule Grinder Coolant Dispersion Ring
Annular jet ring that disperses coolant streams around grinding wheels for precise diameter control on semiconductor crystal boules. Falls under HTS 8424.90.90.40 for parts of powder/liquid projecting machines in wafer prep. Ensures uniform cooling to prevent thermal cracking during flat grinding.