Float Zone Crystal Grinder Chuck from China
Vacuum chuck assembly for float zone crystal grinders that shape semiconductor boules to precise wafer diameters while maintaining flat orientation indicators. This accessory for heading 8461 machines is classified in HTS 8466.93.98.85 due to its specialized use in semiconductor material processing. Ensures conductivity type markings remain accurate during grinding.
Duty Rate — China → United States
42.2%
Rate breakdown
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]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Document vacuum specifications and flatness tolerances proving semiconductor use; include boule diameter compatibility range; ensure material certificates for contamination-free operation