Silicon Wafer Polishing Pulley System
Pulley system for semiconductor wafer polishers ensuring surface flatness critical for device fabrication. HTS 8431.10.0010 for parts of 8425.19 polishing capstan machinery, statistical note (a)(ii)(C).
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If parts of other semiconductor processing drills/polishers
Shifts to parts of 8430 machinery if not tied to 8425.
If considered interchangeable tooling
Interchangeable polishing tools classify as tooling in Chapter 82.
If complex pulley assemblies as machines NESOI
Undefined semiconductor machinery parts may go to 8486.
Not sure which classification is right?
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Import Tips & Compliance
• Specify polishing to 'fabrication-ready' surface specs in documentation
• Use SEMI standards references (e.g
• SEMI M1) for classification support
Related Products under HTS 8431.10.00.10
Gallium Arsenide Crystal Puller Gearbox
Gearbox assembly for pullers producing GaAs monocrystalline boules for compound semiconductor wafers. Under HTS 8431.10.0010 as 8425.11 machinery part, statistical note covering gallium arsenide materials.
Wire Tensioner for Wafer Slicing Saws
Precision wire tensioner capstan for maintaining diamond wire tension in semiconductor wafer slicing saws. HTS 8431.10.0010 for 8425.19 saw machinery parts, statistical note (a)(ii)(B).
Boule Flattener Drive Capstan
Drive capstan for grinding flats on crystal boules to indicate conductivity type. Classifies under HTS 8431.10.0010, statistical note (a)(ii)(A).
Wafer Edge Grinder Tension Pulley
Tension pulley for edge grinders bringing wafers to dimensional tolerances. HTS 8431.10.0010, statistical note (a)(ii)(C).
Double-Sided Wafer Lapper Winch
Winch for simultaneous double-sided lapping of semiconductor wafers. HTS 8431.10.0010 for 8425.11.
CMP Polisher Carrier Capstan
Capstan for chemical mechanical polishing carriers in wafer planarization. HTS 8431.10.0010.