Control PCB for Crystal Pullers from China
Printed circuit board assembly controlling temperature and rotation in Czochralski crystal pullers for semiconductor boule production, classified under 8473.50.30.00 due to equal suitability with EDP controllers (8471) and semiconductor equipment (8473). It interfaces sensors for precise monocrystalline silicon growth.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Provide manufacturer specs showing compatibility with both 8471 and 8473 machines to avoid single-use classification
• Label with exact part numbers and machine references; customs often requests proof of multi-heading suitability
• Use ESD-safe packaging and include material safety data for cleanroom compatibility during import inspection