Semiconductor Wafer Lapper
Lapping machine that uses abrasive slurries to flatten semiconductor wafers to optical tolerances, controlling slurry temperature for uniform material removal. Critical for wafer flatness before polishing. Under 8419.90.50.80 for semiconductor wafer prep equipment.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mechanical slurry handling dominant
Focus on mechanical handling vs. temperature treatment shifts to other mechanical appliances.
If with integrated measuring systems
If primary function becomes measurement, moves to Chapter 90.
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Import Tips & Compliance
• Document flatness specs (e.g
• <1μm TTV); include slurry system details; ensure calibration traceability for metrology
Related Products under HTS 8419.90.50.80
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Float Zone Silicon Crystal Grower
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Double-Sided Wafer Polisher
Chemical-mechanical planarization (CMP) polisher for simultaneous double-sided polishing of silicon wafers, maintaining precise temperature control of polishing pads and slurries. Prepares wafer surface for device fabrication. Fits 8419.90.50.80 as semiconductor processing part.
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