Gallium Arsenide Wafer Lapping Filter Assembly
A filter part for lapping machines that flatten semiconductor wafers sliced from gallium arsenide boules. It ensures the lapping slurry remains free of debris, which is critical for achieving surface flatness. This part is classified under tariff item 8421.99.00 as a component of liquid filtering machinery for semiconductor wafer preparation.
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 filter assembly is a complete filtering machine for liquids
Complete liquid filtering machines are classified under 8421.29, while this item covers parts.
If the filter is part of a complete wafer lapping machine
Machines for processing semiconductor wafers are classified under heading 84.86.
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
• Clearly indicate that the filter assembly is a part of a lapping machine's slurry filtration system to justify classification under 8421.99.00
• The CBSA may require a statement of use, so include a brief description of the lapping process
• Verify if the filter assembly is eligible for duty relief under a remission order for semiconductor equipment
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