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Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases. > Centrifuges, including centrifugal dryers: > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 8421.19
Centrifugal Wafer Edge Profiling Machine
This specialized centrifuge rotates semiconductor wafers to profile and bevel their edges, preventing fractures during processing. It falls under tariff item 8421.19.00 as an 'other' centrifuge, distinct from those used for filtering or purifying liquids or gases.
8421.19.00Compound Semiconductor Slurry Centrifuge
This centrifuge separates polishing slurry from gallium arsenide or silicon wafers after chemical mechanical planarization. It is classified under 8421.19.00 as an 'other' centrifuge for liquid-solid separation in semiconductor processing.
8421.19.00Czochralski Crystal Puller
This machine grows monocrystalline silicon boules using the Czochralski method, rotating and pulling a crystal from molten silicon. It is classified under 8421.19.00 as an 'other' centrifuge, as its primary function involves centrifugal rotation during crystal growth.
8421.19.00Float Zone Crystal Grower
This apparatus uses the float zone method to produce ultra-pure silicon crystals, rotating a molten zone along a polycrystalline rod. It is classified under 8421.19.00 as an 'other' centrifuge for semiconductor material processing.
8421.19.00Gallium Arsenide Wafer Centrifuge Dryer
This centrifugal dryer spin-dries compound semiconductor wafers like gallium arsenide after chemical processing, preventing surface damage. It is classified under 8421.19.00 as an 'other' centrifugal dryer for semiconductor wafers.
8421.19.00High-G Centrifuge for Wafer Stress Testing
This high-G centrifuge applies extreme rotational forces to test the mechanical integrity of semiconductor wafers before device fabrication. It is classified under 8421.19.00 as an 'other' centrifuge for testing purposes.
8421.19.00Precision Wafer Lapping Centrifuge
This centrifugal lapping machine rotates semiconductor wafers against abrasive surfaces to achieve critical flatness. It is classified under 8421.19.00 as an 'other' centrifuge for wafer preparation.
8421.19.00Rotating Crystal Annealing Centrifuge
This centrifugal furnace spins semiconductor crystals during high-temperature annealing to ensure uniform dopant distribution. It is classified under 8421.19.00 as an 'other' centrifuge for crystal processing.
8421.19.00Semiconductor Crystal Boule Grinder
This high-precision centrifugal grinder rotates crystal boules to achieve exact diameters and orientation flats. It is classified under 8421.19.00 as an 'other' centrifuge for semiconductor crystal processing.
8421.19.00Silicon Ingot Centrifugal Polisher
This rotating centrifugal polisher processes silicon ingots to precise surface flatness before wafer slicing. It is classified under 8421.19.00 as an 'other' centrifuge for semiconductor material processing.