Crystal Boule Holder Fixture from Japan
A precision fixture that clamps and rotates monocrystalline semiconductor boules during grinding in crystal grinders, part of wafer manufacturing equipment under heading 8464. Classified in HTS 8466.20.80.65 as an other work holder for machines processing semiconductor materials like silicon into wafers. It maintains exact diameter and flat tolerances as per statistical notes.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include technical drawings showing boule-specific design; declare material compatibility for Czochralski or float zone crystals; watch for misclassification as general tooling without semiconductor context