Other
Machine tools for planing, shaping, slotting, broaching, gear cutting, gear grinding or gear finishing, sawing, cutting-off and other machine tools working by removing metal or cermets, not elsewhere specified or included: > Sawing or cutting-off machines: > Other > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Products classified under HTS 8461.50.80.90
Gallium Arsenide Wafer Saw
Precision cutting-off saw optimized for brittle GaAs boules into compound semiconductor wafers with minimal chipping. HTS 8461.50.80.90 covers sawing machines for cermet removal in statistical note materials.
Czochralski Crystal Puller
A machine tool that uses the Czochralski method to grow monocrystalline silicon boules by pulling a seed crystal from molten silicon, grinding the boule to precise diameter. Classified under HTS 8461.50.80.90 as a sawing or cutting-off machine tool working by removing metal or cermets for semiconductor crystal preparation.
Float Zone Crystal Grower
Machine employing float zone method to produce pure monocrystalline semiconductor boules, with integrated grinding for flats indicating conductivity and resistivity. Falls under HTS 8461.50.80.90 as other sawing/cutting-off machine tools removing metal or cermets in semiconductor processing.
Crystal Boule Grinder
Precision grinder for semiconductor crystal boules, achieving exact diameter and flats for conductivity/resistivity indication before wafer slicing. HTS 8461.50.80.90 covers this as other machine tools for sawing/cutting-off by removing metal or cermets in wafer prep.
Semiconductor Wafer Slicing Saw
Diamond wire saw for slicing ultra-thin wafers from monocrystalline semiconductor boules like silicon or gallium arsenide. Classified in HTS 8461.50.80.90 as other sawing or cutting-off machines removing cermets in semiconductor manufacturing.
Wafer Edge Grinder
Machine for grinding wafer edges post-slicing to precise tolerances and remove damage layers before polishing. HTS 8461.50.80.90 includes this semiconductor wafer preparation tool as other cutting-off/grinding by metal/cermet removal.
Crystal Flat Grinding Machine
Specialized grinder creating orientation flats on semiconductor boules to denote doping type and resistivity for wafer processing. Under HTS 8461.50.80.90 as other machine tools for shaping by cermet removal per statistical notes.
Silicon Ingot Diameter Grinder
Grinds silicon ingots to uniform diameter specification (150mm-450mm) for consistent wafer thickness post-growth. Classified HTS 8461.50.80.90 as other metal/cermet removing machine for semiconductor boule prep.
Wafer Lapping Machine
Double-sided lapper removing stock from semiconductor wafers to achieve total thickness variation <1 micron before polishing. HTS 8461.50.80.90 for other cutting-off/abrasive machines in wafer preparation.
Boule Slicing Diamond Saw
Inner diameter diamond saw for sectioning semiconductor boules into wafers with <25 micron thickness control. Other sawing machine under HTS 8461.50.80.90 removing cermets per Chapter 84 notes.
Semiconductor Crystal Polisher
Final polishers bringing boule/wafer surfaces to mirror finish (Ra < 0.5 nm) for device fabrication. HTS 8461.50.80.90 as other finishing machines removing cermets in statistical semiconductor processing.
Wafer Grinder for Dimensional Control
Backside grinders thinning wafers to 50-100 micron specs for advanced packaging with stress relief. Classified HTS 8461.50.80.90 other machine tools for semiconductor wafer processing.