Crystal Boule Grinder Furnace Enclosure
A specialized non-electric furnace enclosure designed to maintain thermal stability during the grinding of semiconductor crystal boules to precise diameters. It controls dust and ensures consistent temperature conditions critical for wafer preparation. Classified under tariff item 8417.80.00 as an industrial furnace of a kind used in semiconductor manufacturing.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the enclosure is used for the heat treatment of ores or metals
Heading 8417 covers industrial furnaces; subheading 8417.10 specifically covers furnaces for roasting, melting or other heat-treatment of ores or metals.
If the enclosure performs a grinding function beyond thermal stability
Machines for specific functions not covered elsewhere, such as grinding, may be classified under heading 8479.
If the enclosure is part of a machine for manufacturing semiconductor devices
Machines solely or principally used for the manufacture of semiconductor devices fall under heading 8486.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the enclosure is non-electric and functions solely as a furnace; if it includes electrical heating elements, it may fall under a different heading
• Verify the end-use in semiconductor manufacturing to support classification, and keep detailed technical documentation for CBSA review
Related Products under Tariff item 8417.80.00
Crystal Ingot Anneal Furnace
An industrial non-electric furnace used to anneal semiconductor crystal ingots after growth. It minimizes dislocation density and stabilizes resistivity profiles through slow, controlled ramp rates over extended periods in a vertical configuration.
Czochralski Crystal Puller Furnace
A non-electric industrial furnace that uses the Czochralski method to grow monocrystalline silicon boules from molten semiconductor material. It maintains precise temperature gradients in a vacuum to produce crystals for subsequent wafer slicing.
Float Zone Crystal Growth Furnace
A non-electric furnace that uses the float zone method to purify and grow monocrystalline semiconductor rods, particularly silicon, by melting a narrow zone with RF heating in a vacuum chamber. It is critical for producing ultra-high-purity crystals.
Hydrogen Bake Furnace
A non-electric furnace for high-temperature hydrogen baking of semiconductor wafers to remove native oxides and hydrogen-passivate surface defects before epitaxial growth. It uses forming gas mixtures in a controlled environment.
Rapid Thermal Processing RTP Furnace
A non-electric semiconductor furnace using lamp arrays for ultra-fast wafer heating to 1200°C in seconds for annealing and silicide formation. It is critical for submicron semiconductor device fabrication to prevent dopant redistribution.
Semiconductor Diffusion Furnace
A non-electric industrial furnace for dopant diffusion into semiconductor wafers to create device junctions, using gas phase reactions in horizontal or vertical quartz tubes. It is essential for bipolar and MOS device fabrication.