Other
Refrigerators, freezers and other refrigerating or freezing equipment, electric or other; heat pumps, other than the air conditioning machines of heading 8415; parts thereof: > Parts: > 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 8418.99.80.60
Semiconductor Wafer Cooling Chuck
A specialized cooling chuck used in semiconductor wafer processing to maintain precise low temperatures during lithography and etching steps. It incorporates refrigeration coils and thermal control systems to prevent wafer overheating. Classified under HTS 8418.99.8060 as a part of refrigerating equipment designed for semiconductor manufacturing applications.
Cryogenic Wafer Probe Station Refrigerator
Integrated refrigeration unit for cryogenic probe stations used to test semiconductor wafers at temperatures below -100°C. Enables electrical characterization of devices under extreme cold conditions. Falls under HTS 8418.99.8060 as semiconductor processing refrigerating parts.
Plasma Etch Chamber Cooling Coil Assembly
Refrigerated cooling coil system for plasma etch chambers in semiconductor manufacturing, circulating coolant to maintain chamber walls at optimal temperatures during wafer processing. Prevents thermal damage to delicate semiconductor structures. HTS 8418.99.8060 for semiconductor-specific refrigerating parts.
Epitaxial Reactor Temperature Control Unit
Refrigeration module for MOCVD epitaxial reactors that precisely controls wafer stage temperatures during thin film deposition of compound semiconductors like GaAs. Essential for uniform layer growth. Classified in HTS 8418.99.8060 per semiconductor processing provisions.
Silicon Crystal Puller Chiller System
High-capacity chiller for Czochralski crystal pullers that cools the crucible and growth chamber during monocrystalline silicon boule production from which wafers are sliced. Maintains critical thermal gradients. HTS 8418.99.8060 as crystal grower refrigerating equipment.
Wafer Lapping Machine Coolant Circulator
Refrigerated circulator maintaining coolant at 15-20°C for wafer lapping and polishing equipment, ensuring flatness tolerances critical for semiconductor fabrication. Removes heat from grinding process. Under HTS 8418.99.8060 for wafer preparation equipment.
Ion Implanter Cold Trap Assembly
Cryogenic cold trap for ion implanters that condenses and removes volatile contaminants from the vacuum beamline during high-dose semiconductor doping processes. Prevents wafer contamination. HTS 8418.99.8060 refrigerating part for semiconductor processing.
Photoresist Coat Track Chiller
Precision chiller for photoresist coat tracks maintaining developer and rinse solutions at 23±0.1°C for uniform semiconductor wafer patterning. Critical for photolithography yield. Classified HTS 8418.99.8060 semiconductor processing refrigeration.
CMP Polisher Slurry Refrigerator
Refrigeration unit for chemical mechanical planarization (CMP) polishers that chills abrasive slurry to 18°C, controlling removal rates on semiconductor wafers. Ensures planarity for multi-layer interconnects. HTS 8418.99.8060 per statistical notes.
Wafer Crystal Grinder Coolant System
Refrigerated coolant system for crystal grinders that prepares semiconductor boules to precise diameters per statistical note (a)(ii)(A). Maintains grinding wheel at constant temperature for accuracy. HTS 8418.99.8060 wafer preparation equipment.
Float Zone Crystal Growth Chiller
Chiller system for float zone silicon crystal growers maintaining RF coil and zone temperatures during high-purity monocrystalline growth per statistical note (a)(i). Produces wafers with ultra-low oxygen content. Under HTS 8418.99.8060.
Semiconductor Vacuum Chamber Cryopump Interface
Refrigeration interface unit connecting cryopumps to semiconductor processing vacuum chambers, achieving base pressures <1E-10 Torr for contamination-free wafer processing. HTS 8418.99.8060 refrigerating parts.
Gallium Arsenide Wafer Freezer Unit
Rapid freezer for GaAs wafers maintaining -80°C storage to preserve epitaxial structures before device fabrication. Prevents dopant diffusion during handling. HTS 8418.99.8060 per statistical note semiconductor materials.
Wafer Slicing Saw Coolant Chiller
Chiller for wire saw coolant in wafer slicing equipment per statistical note (a)(ii)(B), maintaining diamond wire at 16°C for kerfless silicon wafer production. Ensures minimal thermal-induced defects. HTS 8418.99.8060.