Other
Air conditioning machines, comprising a motor-driven fan and elements for changing the temperature and humidity, including those machines in which the humidity cannot be separately regulated; parts thereof: > Other, except parts: > Not incorporating a refrigerating unit > Heat exchangers including condensing units: > 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 8415.83.00.70
Semiconductor Wafer Cooling Heat Exchanger
A specialized heat exchanger designed for cooling semiconductor wafers during crystal growth and processing stages, such as in Czochralski pullers. It falls under HTS 8415.83.0060 as it is a heat exchanger not incorporating a refrigerating unit, used in semiconductor manufacturing equipment for temperature control without separate humidity regulation. This component ensures precise thermal management critical for monocrystalline boule production.
Float Zone Crystal Puller Condensing Unit
Condensing unit used in float zone crystal pullers for producing high-purity silicon boules by managing heat dissipation in air-conditioned enclosures. Classified under HTS 8415.83.0060 as 'other' heat exchangers for air conditioning machines without built-in refrigeration, tailored for semiconductor material growth. It maintains stable temperatures essential for defect-free crystal formation.
Wafer Grinder Air Conditioning Heat Exchanger
Heat exchanger for air conditioning systems in wafer grinding machines, controlling temperature and humidity during boule diameter precision grinding. Under HTS 8415.83.0060 as other heat exchangers for AC machines in semiconductor wafer preparation equipment. Critical for maintaining flatness and conductivity indicator flats on crystals.
Crystal Boule Lapping Polisher Cooling Coil
Cooling coil heat exchanger for air conditioning in crystal boule lappers and polishers, ensuring surface flatness for wafer fabrication. HTS 8415.83.0060 covers this as other AC heat exchangers used in semiconductor material processing equipment. It regulates environment to achieve dimensional tolerances vital for device fabrication.
Silicon Wafer Slicing Saw Temperature Exchanger
Temperature control heat exchanger for air conditioning enclosures on wafer slicing saws from monocrystalline boules. Fits HTS 8415.83.0060 as other non-refrigerated AC heat exchangers in semiconductor wafer manufacturing apparatus. Prevents thermal distortion during precise slicing for optimal wafer yield.
Gallium Arsenide Crystal Grinder Condenser
Condenser unit heat exchanger for AC systems in grinders processing gallium arsenide crystal boules for compound semiconductors. Under HTS 8415.83.0060 for other heat exchangers in semiconductor growth equipment air conditioning. Grinds to exact diameter and flats indicating resistivity for device processing.
Monocrystalline Silicon Polisher HVAC Exchanger
HVAC heat exchanger for polishers preparing monocrystalline silicon wafers to fabrication tolerances, controlling temperature/humidity. HTS 8415.83.0060 applies to these other AC components in semiconductor wafer prep machines. Ensures ultra-flat surfaces for advanced device lithography.
Wafer Prep Station Air Cooled Condensing Unit
Air-cooled condensing unit for multi-function wafer preparation stations encompassing grinding, slicing, and polishing AC systems. Classified HTS 8415.83.0060 as other heat exchangers for semiconductor manufacturing air conditioning without refrigerating units. Supports integrated prep for high-volume wafer production.
Czochralski Method Crystal Growth Heat Sink
Heat sink exchanger integrated into AC systems for Czochralski crystal growth furnaces producing semiconductor boules. HTS 8415.83.0060 for other non-refrigerated heat exchangers in such apparatus. Manages thermal gradients for pure monocrystalline silicon pulling.
Semiconductor Boule Grinder Finned Tube Exchanger
Finned tube heat exchanger for precise temperature control in boule grinders indicating conductivity flats. Under HTS 8415.83.0060 as AC heat exchanger in wafer manufacturing equipment per statistical notes. High-efficiency design for cleanroom air conditioning.