High-Purity Silicon boule Grinder Rotating Blades
Precision rotating blades in steam turbine grinders for shaping high-purity silicon boules to wafer-ready diameters with conductivity flats. Used immediately after crystal pulling in semiconductor lines. HTS 8406.90.40.00 for these rotating steam turbine blades.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If abrasive grinding wheels/blades
Interchangeable abrasives for grinding in 8207, not fixed turbine parts.
If wafer preparation equipment parts
Direct classification under semiconductor wafer prep machines.
If parts of crystal working machinery broadly
Other semiconductor material processing machinery parts in 8439.
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Import Tips & Compliance
• Include resistivity range specs for flats ground to validate semiconductor use
• Use precise nomenclature matching statistical notes (crystal grinders)
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