Semiconductor Wafer Lapper
Wafer lappers use loose abrasives to achieve initial flatness on semiconductor wafers before polishing. Classified HTS 8479.30.00.00 per statistical note (a)(ii)(C) for wafer preparation.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If generic lapping machines not specified for semiconductor wafers
Sharpening/honing machines for general use fall under different subheading.
If emphasizing centrifugal slurry distribution
Centrifugal machines might classify under filtering/centrifugal equipment.
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Import Tips & Compliance
• Document lapping plate flatness specs (e.g
• <1μm across 300mm wafer)
• Ensure slurry handling system designed for colloidal silica, not general abrasives
• Avoid pitfall of classifying as general metal lapping machines
Related Products under HTS 8479.30.00.00
Czochralski Crystal Puller
A Czochralski crystal puller is specialized equipment used to grow monocrystalline silicon boules from molten silicon for semiconductor wafer production. It falls under HTS 8479.30.00.00 as machinery for processing semiconductor materials, akin to treating ligneous materials, per statistical notes on semiconductor manufacturing equipment.
Float Zone Crystal Grower
Float zone crystal growers produce high-purity monocrystalline silicon by zone melting, avoiding contamination from crucibles. Classified under HTS 8479.30.00.00 for semiconductor material processing equipment as per statistical notes.
Chemical Mechanical Planarization Tool
CMP tools use chemical slurry and mechanical polishing pads to planarize wafers during device fabrication. While primarily fabrication equipment, preparatory CMP tools fall under HTS 8479.30.00.00 statistical notes for wafer preparation.
Gallium Arsenide Wafer Slicer
Specialized saws for slicing brittle gallium arsenide wafers from compound semiconductor boules. Covered under HTS 8479.30.00.00 statistical note for semiconductor materials including gallium arsenide.
Wafer Edge Profiling Machine
Machines profile wafer edges to prevent chipping and enable handling during fabrication. Part of wafer preparation sequence under HTS 8479.30.00.00 statistical notes.
Crystal boule Grinder with Flats
Grinds precise flats on semiconductor boules indicating crystal orientation and doping type. Essential per statistical note (a)(ii)(A) for wafer preparation.