Crystal Boule Grinder
Crystal boule grinders precisely grind semiconductor crystal boules to exact diameters and flats indicating conductivity and resistivity, falling under HTS 8412.90.90.85 as parts of engines/motors in wafer preparation equipment. Essential for semiconductor manufacturing tolerance preparation.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered general grinding machinery not semiconductor-specific
Non-specialized grinders for metal or stone fall under Chapter 84 honing/grinding machines.
If as dedicated wafer prep equipment
Semiconductor-specific preparation machines classify under 8486.
Not sure which classification is right?
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Import Tips & Compliance
• Document precision specs (e.g
• micron-level tolerances) to justify semiconductor-specific classification
• Pair with HTS statistical notes documentation for faster clearance
• Avoid misdeclaration as general metalworking machinery to prevent higher duties
Related Products under HTS 8412.90.90.85
Precision Wafer Thickness Gauge Motor
Motors driving precision thickness measurement in wafer grinding lines, under HTS 8412.90.90.85 for semiconductor equipment integration. Ensures dimensional compliance.
Vacuum Wafer Chuck Drive Motor
Drive motors for vacuum chucks holding wafers during grinding/lapping operations, HTS 8412.90.90.85 as semiconductor wafer prep parts. Maintains position accuracy.
High-Speed Wafer Spindle Motor
High RPM spindle motors powering wafer grinding heads to >10,000 RPM, under HTS 8412.90.90.85 for precision semiconductor surface preparation. Enables fine material removal.
Czochralski Crystal Puller
A Czochralski crystal puller is used to produce extremely pure monocrystalline semiconductor boules from which silicon wafers are sliced, fitting under HTS 8412.90.90.85 as a part of semiconductor manufacturing equipment powered by reaction engines or motors. It employs the Czochralski method for growing semiconductor crystals like silicon and gallium arsenide.
Float Zone Crystal Grower
Float zone crystal growers produce high-purity monocrystalline semiconductor boules using the float zone method, classified as parts of other engines and motors under HTS 8412.90.90.85 for semiconductor wafer production. Critical for processing silicon and similar materials into device-ready forms.
Wafer Slicing Diamond Saw
Wafer slicing diamond saws cut thin wafers from monocrystalline semiconductor boules, classified under HTS 8412.90.90.85 as motor parts for semiconductor wafer manufacturing equipment. They ensure precise slicing for subsequent device fabrication processes.