Crystal Boule Grinder from China
Crystal boule grinders shape semiconductor boules to precise diameters and grind flats indicating conductivity type and resistivity, preparing for wafer slicing. Falls under HTS 8486.20.00.00 for semiconductor boule manufacturing apparatus. Critical for achieving uniform wafers used in device fabrication.
Duty Rate — China → United States
25%
Rate breakdown
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Document flat/grinding specs matching statistical note requirements; calibrate for semiconductor-grade tolerances; include safety data for diamond abrasives