Czochralski Crystal Puller Turbine
A gas turbine component used in Czochralski crystal growers for pulling monocrystalline silicon boules in semiconductor wafer manufacturing. Classified under 8411.99.9085 as a part of non-aircraft gas turbines specifically for semiconductor processing equipment. It provides precise rotational control during the crystal growth process.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as semiconductor manufacturing machine
Entire crystal grower machines fall under 8486 for semiconductor production equipment, not individual turbine parts.
If integrated into testing apparatus
Parts of testing machines for semiconductor devices are in Chapter 90, per statistical notes.
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Import Tips & Compliance
• Verify equipment end-use declaration for semiconductor manufacturing to qualify for potential duty relief; provide technical specs confirming non-aircraft application; ensure origin certificates as many parts sourced from Asia
Related Products under HTS 8411.99.90.85
Float Zone Crystal Grower Turbine
High-precision gas turbine part employed in float zone crystal growers to melt and form pure monocrystalline semiconductor boules. Falls under HTS 8411.99.9085 as other parts of non-aircraft gas turbines used in semiconductor material processing. Ensures stable zone melting for defect-free crystals.
Wafer Slicing Saw Drive Turbine
Gas turbine drive unit for wafer slicing saws that cut monocrystalline boules into thin semiconductor wafers. Classified in 8411.99.9085 as parts of non-aircraft gas turbines integral to wafer preparation equipment. Delivers consistent high-speed rotation for precise kerf-less cuts.
Crystal Grinder Spindle Turbine
Precision gas turbine powering the spindle in crystal grinders that shape semiconductor boules to exact wafer diameters. Under HTS 8411.99.9085 for non-aircraft gas turbine parts in wafer preparation equipment. Grinds flats indicating crystal conductivity and resistivity.
Wafer Lapping Turbine Drive
Gas turbine drive system for wafer lappers that achieve ultra-flat surfaces on semiconductor wafers prior to fabrication. Classified 8411.99.9085 as part of non-aircraft gas turbine in wafer preparation equipment. Critical for bringing wafers within strict dimensional tolerances.
CMP Polisher Gas Turbine
High-speed gas turbine for Chemical Mechanical Planarization (CMP) polishers preparing semiconductor wafer surfaces for device fabrication. HTS 8411.99.9085 covers this non-aircraft gas turbine part essential for wafer polishers in semiconductor processing.
Semiconductor Vacuum Pump Turbine
Gas turbine component in turbomolecular vacuum pumps for semiconductor processing chambers. Falls under 8411.99.9085 as non-aircraft gas turbine parts supporting crystal growth and wafer processing environments.