Semiconductor Crystal Boule Grinder

Precision grinder that shapes crystal boules to exact diameters and adds flats indicating conductivity and resistivity for wafer production. Accessory solely for heading 8471 wafer preparation machines. HTS 8473.30.51.00 applies as parts without CRT for semiconductor processing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+50.0%50%
🇲🇽MexicoFree+25.0%25%
🇨🇦CanadaFree+25.0%25%
🇩🇪GermanyFree+25.0%25%
🇯🇵JapanFree+25.0%25%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8460.40.80Lower: 39.4% vs 50%

If for general metal grinding, not semiconductor-specific

Honing or grinding machines of 8460 apply to non-specialized industrial use.

9018.90.75Lower: 35% vs 50%

If medical or lab microscopes with integrated grinding

Image-processing microscopes classify under 9018 if for microscopy rather than processing.

8479.10.00Lower: 35% vs 50%

If sold as standalone chairside equipment

Unspecified machinery if not proven for principal semiconductor boule prep.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Certify grinder tolerances meet semiconductor specs (e.g

<1 micron flatness) for correct heading

Document absence of CRT and principal 8471 compatibility to customs

Related Products under HTS 8473.30.51.00

Crystal Ingot Handling Manipulator

Robotic arm accessory for automated transfer of heavy semiconductor crystal ingots between processing stations in 8471 machines. Ensures precise alignment without contamination. Fits HTS 8473.30.51.00 as principal part without CRT.

Boule Diameter Control Sensor Mount

Mounting fixture for laser interferometers that monitor crystal boule diameter growth in real-time during Czochralski pulling. Accessory principally for heading 8471 crystal growers. Classifies HTS 8473.30.51.00 excluding CRT.

Czochralski Crystal Puller Furnace

A high-temperature furnace used in the Czochralski method to grow monocrystalline silicon boules for semiconductor wafers. This part is suitable solely for machines of heading 8471 used in semiconductor manufacturing. It falls under HTS 8473.30.51.00 as a specialized accessory for crystal growing equipment.

Float Zone Crystal Grower Chamber

A vacuum chamber component for float zone method to produce high-purity silicon crystals from polycrystalline rods. Designed principally for semiconductor boule manufacturing machines under heading 8471. Classified in HTS 8473.30.51.00 as it excludes CRT and is a dedicated accessory.

Wafer Slicing Diamond Saw Blade

Ultra-thin diamond-impregnated saw blade for slicing monocrystalline boules into thin semiconductor wafers with minimal kerf loss. Part principally for 8471 wafer slicing machines. Fits HTS 8473.30.51.00 as specialized accessory without CRT.

Silicon Wafer Lapping Plate

Cast iron or copper plate used with abrasive slurries to lap semiconductor wafers to precise flatness tolerances before polishing. Accessory for heading 8471 wafer preparation equipment. HTS 8473.30.51.00 for non-CRT parts in semiconductor processing.