Diamond Wafer Lapper
A diamond wafer lapper uses diamond slurry to achieve flatness tolerances on semiconductor wafers before polishing. It processes hard, brittle mineral-like materials, which falls under tariff item 8464.90.00 for machine-tools for working stone, ceramics or similar mineral materials.
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 lapper is solely or principally used for semiconductor wafer production
Heading 84.86 covers machines for the manufacture of semiconductors, which takes precedence.
If the lapper uses grinding or polishing wheels for glass
Heading 84.64 includes machines for grinding or polishing glass, which may be more specific.
If the lapper is a general-purpose machine not specifically for mineral materials
Machines not covered by more specific headings are classified in heading 84.79.
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
• Confirm the lapper is not classified under heading 84.86 if it is solely for semiconductor wafer manufacture; the CBSA may require a ruling
• Keep documentation on the lapping process and materials to support the mineral-working classification
• Consider whether the machine qualifies for duty-free entry under a free trade agreement
Related Products under Tariff item 8464.90.00
Architectural Glass Notching Machine
Heavy-duty machine creating precise notches in oversized glass panels for structural glazing systems and curtain walls using carbide-tipped milling tools at ambient temperature. This machine tool works glass through cold milling, falling under tariff item 8464.90.00.
Automatic Glass Beveling Machine
Automated equipment that creates beveled edges on glass plates for decorative mirrors, tabletops, and furniture components through grinding wheels operating at ambient temperatures. This cold working process falls under tariff item 8464.90.00 as a machine-tool for working glass without heat.
Automotive Glass Corner Radius Machine
A high-speed machine that applies safety radiused corners to automotive sidelite and backlite glass through diamond wheel profiling in a cold process. This machine-tool for cold working glass is classified under tariff item 8464.90.00, as it shapes glass without heat for automotive applications.
Bottle Glass Neck Polishing Machine
A rotary machine that smooths and polishes glass bottle necks after forming to ensure proper cap sealing surfaces through mechanical brushing and polishing compounds. This post-forming cold working process falls under tariff item 8464.90.00 as a machine-tool for cold working glass.
Ceramic Press Edge Chippers
High-speed rotary chipping machines that remove flash from pressed ceramic tile edges after molding. These machine tools work ceramic materials through cold mechanical processes, falling under tariff item 8464.90.00 for machine-tools for working ceramics and like mineral materials.
Ceramic Tile Edge Polisher
Automated polishing machine for finishing ceramic tile edges using abrasive wheels to achieve bullnose or chamfer profiles. This equipment works ceramic mineral materials through cold abrasion, qualifying under tariff item 8464.90.00 as a machine-tool for working ceramics.