Float Zone Crystal Grower Stationary Blades
Stationary blades in float zone crystal growers maintain precise positioning during the float zone melting process for high-purity silicon ingots used in semiconductor wafers. They support the RF coil and zone movement for defect-free crystal formation. Falls under HTS 8406.90.40.00 as stationary blades of steam turbines in semiconductor processing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If part of RF heating semiconductor processing equipment
Electric semiconductor processing apparatus parts are in 8516, excluding mechanical turbine-driven components.
If imported as flywheel or pulley blades
Other rotating mechanical power transmission parts shift to heading 8483 if not turbine-specific.
If for interchangeable tool blades in wafer prep
Saw blades for metalworking/wafer slicing classified as tools in 8202 if not fixed turbine parts.
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Import Tips & Compliance
• Provide process flow diagrams showing steam turbine integration in float zone systems for customs validation
• Label with material composition (e.g
• high-temperature alloys) and tolerances to meet Chapter 84 specificity
Related Products under HTS 8406.90.40.00
Steam Turbine-Driven Wafer Grinder Rotating Blades
Rotating blades for wafer grinders powered by steam turbines, used to grind semiconductor crystal boules to precise diameters post-growth. They ensure accurate flats indicating conductivity type for wafer production. HTS 8406.90.40.00 covers these as rotating blades of steam turbines in semiconductor wafer preparation.
Silicon Wafer Lapping Stationary Turbine Blades
Stationary blades in steam turbine-driven lappers that flatten silicon wafer surfaces to nanometer tolerances post-slicing for semiconductor fabrication. They guide lapping plates for ultimate flatness. Under HTS 8406.90.40.00 as stationary parts of steam turbines in wafer preparation equipment.
RF Float Zone Turbine Stationary Support Blades
Stationary support blades in steam turbine systems for RF float zone crystal growers, stabilizing zone translation for ultra-pure silicon rods. Essential for minimizing oxygen impurities in semiconductor material. Classified HTS 8406.90.40.00 as stationary turbine blades.
Czochralski Crystal Puller Rotating Blades
These rotating blades are integral components in Czochralski method crystal pullers used to produce monocrystalline silicon boules for semiconductor wafers. They facilitate the precise rotation and dipping of the seed crystal into molten silicon, ensuring uniform crystal growth. Classified under HTS 8406.90.40.00 as rotating blades specifically for steam turbines in semiconductor crystal growing equipment.
Monocrystalline Boule Slicer Stationary Guide Blades
Stationary guide blades in wafer slicing saws driven by steam turbines, aligning the diamond wire or blade during boule slicing into thin semiconductor wafers. They maintain precision cuts for optimal wafer yield. Classified in HTS 8406.90.40.00 as stationary blades for steam turbines in semiconductor manufacturing.
Gallium Arsenide Crystal Grinder Turbine Blades
Rotating and stationary turbine blades for steam-powered grinders processing gallium arsenide boules to exact diameters for compound semiconductor wafers. Critical for flats indicating resistivity in GaAs devices. HTS 8406.90.40.00 applies to these steam turbine blades in specialized semiconductor equipment.