8406.90.40.00/Steam Turbine-Driven Wafer Grinder Rotating Blades/Germany

Steam Turbine-Driven Wafer Grinder Rotating Blades from Germany

Rotating blades for wafer grinders powered by steam turbines, used to grind semiconductor crystal boules to precise diameters post-growth. They ensure accurate flats indicating conductivity type for wafer production. HTS 8406.90.40.00 covers these as rotating blades of steam turbines in semiconductor wafer preparation.

Duty Rate — Germany → United States

15%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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Import Tips

• Submit OEM certification linking blades to steam turbine models used in semiconductor grinders

• Comply with dimensional tolerance declarations (e.g

• micron-level flatness specs) for classification support

• Avoid reclassification by separating from lapping/polishing consumables on import manifests