Crystal Boule Grinder
A precision grinding machine with a self-contained electric motor that shapes semiconductor crystal boules to exact wafer diameters and grinds orientation flats indicating conductivity and resistivity. This machine prepares boules for subsequent wafer slicing. It is a specialized machine with an individual function, not specified elsewhere in Chapter 84, so it is classified under 8479.89.90.
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 |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the grinder is a machine-tool for working metal or ceramics
Heading 84.60 covers grinding machines for various materials, which may apply if the boule grinder is not exclusively for semiconductors.
If the machine is solely or principally used for manufacturing semiconductor devices
Heading 84.86 is more specific for semiconductor manufacturing equipment, which may be the correct classification.
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
• Document the machine's specific function in grinding semiconductor boules, as this may support classification under heading 84.86 if it is used solely in semiconductor manufacturing
• Check if the equipment qualifies for the Accelerated Capital Cost Allowance (ACCA) for clean energy or manufacturing equipment
• Ensure the grinder's electrical specifications comply with Canadian standards to avoid customs holds
Related Products under Tariff item 8479.89.90
American-Lincoln Glide 21-Inch Floor Polisher
A 21-inch floor polisher with a 2 HP self-contained electric motor for large venues, offering counter-rotating pads for even polishing on marble and granite. It falls under this tariff item as a mechanical appliance with an individual function not specified elsewhere in Chapter 84.
Automated Optical Media Finishing and Inspection Line
A turnkey finishing line combining edge polishing, center hub insertion, and automated defect inspection for completed optical discs. This line performs a comprehensive manufacturing function for optical media. It is a specialized machine with an individual function, not specified elsewhere in Chapter 84, so it is classified under 8479.89.90.
Blu-ray Disc Replication Line
A complete production line machine that electroforms metal masters, stamps polycarbonate substrates, applies reflective layers, and bonds discs for Blu-ray manufacturing. This line performs a comprehensive manufacturing function for optical media. It is a specialized machine with an individual function, not specified elsewhere in Chapter 84, so it is classified under 8479.89.90.
Boule Orientation Grinder
A precision grinder with a motorized X-Y table used to create flats on semiconductor boules at specific angles, indicating crystal orientation, doping type, and resistivity. This machine is essential for aligning wafers during semiconductor processing. It is a specialized machine with an individual function, not specified elsewhere in Chapter 84, so it is classified under 8479.89.90.
CD-ROM Stamper and Injection Molding Machine
An industrial machine that uses nickel stamper molds to inject polycarbonate and form the base structure of CD-ROMs during optical media production. This machine performs a specialized function in optical disc manufacturing. It is a specialized machine with an individual function, not specified elsewhere in Chapter 84, so it is classified under 8479.89.90.
Crystal Diameter Grinder
A motorized grinding apparatus that precisely reduces semiconductor boule diameter to standard wafer sizes (150mm, 200mm, 300mm) while maintaining cylindrical geometry. It includes automated measurement feedback for precision. This machine performs a specialized function in semiconductor manufacturing, not specified elsewhere in Chapter 84, so it is classified under 8479.89.90.