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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If laboratory polishing equipment
Lab-scale polishers classify under optical chapter 90.
If complete polishing machines
Assembled semiconductor polishers under machines, not parts.
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Import Tips & Compliance
• Specify diamond slurry compatibility and pressure differentials in technical data sheets
• Maintain import records showing integration with CMP equipment for parts classification
• Avoid 9017 lab apparatus misclassification by proving industrial semiconductor use
Related Products under HTS 8424.90.90.40
Wafer Slicing Saw Coolant Jet Nozzle
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.
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
A specialized manifold that directs high-velocity gas jets in float zone crystal growers for melting and zone refining semiconductor materials like silicon. Classified under HTS 8424.90.90.40 due to its role in jet projecting machines for precise thermal control in monocrystalline boule production. It enables contactless zone movement critical for purity.
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.
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.