Crystal Boule Grinder from China
Crystal boule grinders precisely grind semiconductor crystal boules to exact diameters and flats indicating conductivity and resistivity, preparing for wafer slicing. Under HTS 8443.99.5050 as other parts/accessories for printing machinery in semiconductor wafer prep per statistical notes. Essential for dimensional accuracy in wafer production.
Duty Rate — China → United States
20%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide wafer fab qualification specs; CBP often requires proof of <1 micron tolerance capability
• Avoid bulk packaging classification; ship in cleanroom-ready containers