Other
Air or vacuum pumps, air or other gas compressors and fans; ventilating or recycling hoods incorporating a fan, whether or not fitted with filters; gas-tight biological safety cabinets, whether or not fitted with filters; parts thereof: > Fans: > Other: > Other > Other > Other: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 8414.59.65.95
Czochralski Crystal Puller Vacuum Pump
This vacuum pump is integral to Czochralski crystal growers used in semiconductor manufacturing to produce monocrystalline silicon boules by maintaining a controlled vacuum environment during the crystal pulling process. It falls under HTS 8414.59.65.95 as an other fan or vacuum pump specialized for semiconductor wafer production equipment. The pump ensures ultra-pure conditions essential for slicing high-quality wafers.
Float Zone Crystal Grower Exhaust Fan
High-precision exhaust fan designed for float zone crystal growers in semiconductor production, removing inert gases and maintaining vacuum integrity during monocrystalline boule formation. Classified under HTS 8414.59.65.95 as other fans for semiconductor processing apparatus per statistical notes on crystal growers. Critical for preventing contamination in wafer precursor manufacturing.
Wafer Slicing Saw Vacuum Pump
Specialized vacuum pump for wafer slicing saws that cut monocrystalline semiconductor boules into thin wafers, providing precise vacuum hold-down during high-speed diamond saw operations. It qualifies under HTS 8414.59.65.95 as other vacuum pumps for semiconductor wafer preparation equipment noted in statistical provisions. Ensures minimal material loss and flatness for subsequent processing.
Crystal Boule Grinder Cooling Fan
Cooling fan for crystal grinders that shape semiconductor boules to exact wafer diameters and flats indicating conductivity, preventing overheating during precision grinding. Falls under HTS 8414.59.65.95 as other fans for wafer preparation apparatus in semiconductor statistical notes. Maintains thermal stability for accurate resistivity marking.
Wafer Lapping Machine Vacuum Pump
Vacuum pump supplying hold-down force for wafer lappers that achieve precise flatness on semiconductor wafers post-slicing, preparing surfaces for fabrication. Classified in HTS 8414.59.65.95 per notes on wafer grinders, lappers, and polishers for semiconductor processing. Critical for dimensional tolerances in device manufacturing.
Semiconductor Wafer Polisher Exhaust Fan
Exhaust fan for wafer polishers that deliver mirror-finish surfaces on semiconductor wafers by chemical-mechanical planarization, removing debris under vacuum conditions. Under HTS 8414.59.65.95 as other fans for statistical note wafer preparation equipment. Ensures particulate-free environment for IC fabrication.
Gallium Arsenide Wafer Grinder Fan
Precision fan for grinders processing gallium arsenide wafers, controlling airflow to maintain flatness during preparation for compound semiconductor devices. Fits HTS 8414.59.65.95 under statistical notes covering gallium arsenide processing equipment. Specialized for optoelectronics wafer production.
Crystal Puller Chamber Vacuum Pump
High-vacuum pump for the growth chamber of Czochralski pullers, evacuating to ultra-low pressures for pure silicon crystal formation in semiconductor boule production. HTS 8414.59.65.95 classification for other vacuum pumps in wafer manufacturing equipment. Achieves pressures below 10^-6 torr essential for defect-free crystals.
Wafer Grinder Coolant Recycling Fan
Fan system for recycling coolant in wafer grinders, maintaining temperature during boule diameter and flat grinding for semiconductor wafers. Categorized under HTS 8414.59.65.95 as other fans for crystal grinder apparatus per statistical notes. Prevents thermal distortion in precision wafer prep.
Monocrystalline Boule Slicer Fan
Dust extraction fan for wafer slicing saws cutting monocrystalline semiconductor boules, capturing diamond saw particulates in vacuum-assisted slicing. HTS 8414.59.65.95 for other fans in wafer slicing equipment under statistical definitions. Ensures clean wafers for lapping/polishing stages.