Crystal Boule Flattener Attachment from China
Precision flattener tool attachment for grinding flats on semiconductor crystal boules to indicate resistivity and dopant type. HTS 8451.90.90 part of crystal grinder equipment per statistical note (a)(ii)(A). Creates industry-standard flat orientations on 200-300mm diameter boules.
Duty Rate — China → United States
41%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Document flat length tolerances (±0.1mm) and angular positioning accuracy
• Include boule material compatibility (Si, GaAs, InP) specifications