Crystal Boule Planer Grinder from Japan
Heavy-duty planer grinder used to achieve precise diameter and flatness on monocrystalline silicon boules before wafer slicing, employing Czochralski-grown crystals. Falls under HTS 8461.90.60.30 as specialized planing equipment removing silicon (cermet-like material) in semiconductor manufacturing. Includes diamond tooling and metrology feedback systems for sub-micron accuracy.
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 crystal grower process flow documentation to demonstrate boule preparation role per statistical notes
• Label as 'semiconductor manufacturing equipment' and specify planing function to prevent misclassification