Crystal Boule Grinder
A precision grinder that shapes semiconductor crystal boules to exact diameters and grinds flats indicating conductivity type and resistivity. This is a critical step in wafer preparation after crystal growth, ensuring proper orientation for subsequent slicing.
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 grinder is a machine-tool for working metal or cermets
Machine-tools for grinding metal are classified in heading 84.60.
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 machine's principal function is grinding, not measuring, to avoid Chapter 90 classification
• Provide CBSA with a detailed description of the grinding process and its role in semiconductor manufacturing
• Consider if the machine qualifies for any Canadian tariff relief programs for industrial machinery
Related Products under Tariff item 8479.79.00
Boule Diameter Profiler
A precision measuring and grinding station that profiles crystal boules to a uniform cylindrical diameter using laser gauging. It ensures consistent wafer dimensions from variable growth shapes, making it essential for semiconductor material preparation.
Chemical Mechanical Wafer Polisher
A chemical mechanical planarization (CMP) tool that integrates chemical slurry and mechanical polishing to planarize semiconductor wafers. It removes oxide and metal layers uniformly and includes endpoint detection systems for precise control during device fabrication.
Crystal Defect Etcher
An automated wet bench station that uses chemical etching to reveal and measure bulk defects in semiconductor crystals before wafering. It includes thickness mapping to ensure material quality, functioning as a specialized quality control machine.
Crystal Orientation Grinder
A machine that grinds flats on semiconductor boules at precise crystallographic angles to indicate doping type and resistivity. It uses X-ray diffraction for orientation accuracy, combining grinding with crystallographic measurement.
Czochralski Crystal Puller
A machine used to produce monocrystalline silicon boules by slowly pulling a seed crystal from molten silicon in the Czochralski method. It is essential for semiconductor wafer manufacturing as it creates the pure crystal from which wafers are sliced.
Double-Sided Wafer Grinder
Equipment that simultaneously grinds both sides of semiconductor wafers using planetary motion and diamond pads for rapid stock removal. It achieves thickness uniformity across 300mm wafers, preparing them for subsequent polishing steps.