Silicon Ingot Centrifugal Polisher from Japan
Rotating centrifugal polisher that processes silicon ingots to precise surface flatness before wafer slicing in semiconductor fabrication. Falls under HTS 8421.19.00.00 as specialized other centrifuges for wafer manufacturing preparation.
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
• Document flatness specs (<1 micron deviation) matching statistical note requirements; provide evidence of semiconductor-only use; ensure vibration isolation ratings for cleanroom import