Float Zone Melting Process Pump
Specialized liquid pump used in float zone crystal growth equipment for semiconductor materials like silicon, handling inert gases liquefied or process fluids with extreme purity requirements. It maintains zone stability during the melting process to produce high-purity monocrystalline ingots. Falls under HTS 8413.81.00 as other pumps for semiconductor wafer manufacturing preparation.
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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 for handling liquefied gases in vacuum float zone environments
Air or vacuum pumps for semiconductor processes may classify under 8414 if primarily for gas/vapor rather than liquid transfer.
If when supplied as part of complete float zone crystal growing machinery
Complete semiconductor manufacturing machines including pumps are classified in 8479 per statistical notes.
If designed specifically for corrosive semiconductor process chemicals
Liquid pumps for chemical processing may fall under other specific pump subheadings based on application.
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Import Tips & Compliance
• Provide process flow diagrams showing pump integration in float zone systems to support semiconductor manufacturing classification
• Document material compatibility certifications for ultra-pure semiconductor processing liquids
• Watch for reclassification risks if pump specs resemble general vacuum or gas pumps
Related Products under HTS 8413.81.00
Czochralski Crystal Puller Pump
This pump is integral to Czochralski crystal growers used in semiconductor manufacturing to produce monocrystalline silicon boules from which wafers are sliced. It circulates molten silicon precisely during the pulling process to ensure crystal purity and uniformity. Classified under HTS 8413.81.00 as an other pump for liquids fitted for specialized semiconductor material processing.
Semiconductor Wafer Grinding Coolant Pump
High-precision pump for circulating coolant fluids during crystal grinding of semiconductor boules to exact wafer diameters. Essential in wafer preparation equipment to maintain temperature control and surface flatness as per statistical note (b)(ii)(A). Classified in HTS 8413.81.00 as other pumps for semiconductor liquids.
Wafer Slicing Saw Coolant Circulation Pump
Pump designed for high-pressure coolant delivery in wafer slicing saws that cut monocrystalline semiconductor boules into thin wafers, as noted in statistical note (b)(ii)(B). Ensures clean cuts and prevents thermal damage during diamond saw operations. HTS 8413.81.00 covers these other specialized liquid pumps.
Semiconductor Wafer Lapping Fluid Pump
Precision metering pump for delivering lapping slurries and fluids in wafer preparation equipment to achieve critical flatness tolerances, per statistical note (b)(ii)(C). Used after slicing to prepare wafer surfaces for fabrication. Classifies under HTS 8413.81.00 as other liquid pumps for semiconductor processing.
Chemical Vapor Deposition Precursor Pump
Ultra-clean pump for liquid semiconductor precursors in CVD equipment used for wafer processing into devices. Handles volatile organic precursors with contamination-free delivery. HTS 8413.81.00 includes such other pumps for semiconductor manufacturing liquids.
Silicon Wafer Polishing Slurry Pump
Specialized pump circulating colloidal silica slurries for chemical-mechanical polishing (CMP) of semiconductor wafers to mirror finish required for fabrication. Critical for final surface preparation per statistical notes. Under HTS 8413.81.00 as other CMP liquid pumps.