Czochralski Crystal Puller from Japan
A specialized mixing and stirring machine used in semiconductor manufacturing to grow monocrystalline silicon boules via the Czochralski method, where a seed crystal is dipped into molten silicon and slowly pulled while rotating to form pure crystals. It falls under HTS 8479.82.0040 as a stirring machine for high-precision material processing in wafer production. The continuous stirring of the melt ensures uniform crystal growth essential for semiconductor wafers.
Duty Rate — Japan → United States
10%
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
Import Tips
• Verify equipment qualifies under semiconductor statistical notes with detailed process documentation to avoid reclassification
• Include technical specs confirming Czochralski method use and compliance with export controls for high-purity silicon processing