Precision Wafer Lapping Centrifuge
Centrifugal lapping machine that rotates semiconductor wafers against abrasive surfaces to achieve critical flatness for device fabrication. HTS 8421.19.00.00 includes this wafer preparation equipment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for general precision lapping beyond semiconductors
Lappers achieving looser tolerances classify under other abrasive grinding machinery.
If used in optical lens production
Similar lapping for glass optics falls under optical processing machines.
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Import Tips & Compliance
• Include total thickness variation (TTV) specs (<0.5μm); document lapping plate materials (cast iron/copper); ensure endpoint detection system description
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