Czochralski Crystal Puller Furnace from Germany
A high-temperature furnace used in the Czochralski method to grow monocrystalline silicon boules for semiconductor wafers. It is a part of crystal grower equipment classified under heading 8428 for other machinery of mineral substances. Falls under 8431.39.00 as a part solely for such semiconductor processing machinery.
Duty Rate — Germany → 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 is solely for semiconductor crystal growth to qualify under statistical notes; provide technical specs and end-use certificates
• Common pitfall: misclassification as general lab furnaces