Czochralski Crystal Puller Vacuum Pump
A centrifugal vacuum pump used in Czochralski crystal growers to create the high-vacuum environment necessary for producing monocrystalline silicon boules from which semiconductor wafers are sliced. It falls under HTS 8414.80.20.15 as a centrifugal air or vacuum pump integral to semiconductor manufacturing equipment for crystal growth. This classification aligns with statistical notes for wafer manufacturing equipment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If reciprocating type
Reciprocating pumps for similar vacuum applications in semiconductor processing fall under a different subheading within compressors.
If imported as integral part of complete crystal grower machine
Parts of semiconductor manufacturing machines are classified in Chapter 84 heading 8479 if not separately identifiable as pumps.
If primarily for testing semiconductor devices
Statistical notes specify testing equipment moves to Chapter 90; pumps solely for device testing qualify here.
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Import Tips & Compliance
• Verify pump specifications match semiconductor use to avoid reclassification; provide manufacturer certifications linking to crystal grower systems; ensure vacuum ratings and materials are documented for CBP review
Related Products under HTS 8414.80.20.15
Float Zone Crystal Growth Axial Compressor
An axial gas compressor employed in float zone crystal pullers to manage inert gas flow and pressure during the production of high-purity monocrystalline semiconductor boules. Classified under HTS 8414.80.20.15 for axial compressors in semiconductor wafer manufacturing per statistical notes on crystal growers and pullers.
Semiconductor Wafer Slicing Saw Vacuum Pump
Centrifugal vacuum pump integrated with wafer slicing saws to evacuate cutting zones and coolant chambers during precise slicing of semiconductor wafers from crystal boules. HTS 8414.80.20.15 applies as centrifugal pumps for wafer preparation equipment noted in statistical definitions.
Crystal Boule Grinder Centrifugal Air Compressor
Centrifugal compressor supplying clean, dry air to pneumatic controls and coolant systems in crystal grinders that shape semiconductor boules to precise wafer diameters. Falls under HTS 8414.80.20.15 per statistical notes for wafer preparation grinders.
Wafer Lapping Machine Axial Vacuum Pump
Axial vacuum pump removing slurry and debris during the lapping process that achieves critical flatness on semiconductor wafers prior to fabrication. Classified in HTS 8414.80.20.15 as axial pumps for wafer preparation equipment listed in statistical notes.
Silicon Wafer Polisher Vacuum Centrifugal Pump
High-vacuum centrifugal pump evacuating chemical mechanical polishing (CMP) chambers to prevent contamination during final wafer surface preparation for device fabrication. HTS 8414.80.20.15 covers centrifugal pumps in wafer polishers per statistical wafer preparation provisions.
Gallium Arsenide Wafer Processing Axial Compressor
Axial compressor delivering precisely controlled gas atmospheres for gallium arsenide wafer processing equipment covered in statistical notes. Used in both growth and preparation stages; HTS 8414.80.20.15 for axial types in semiconductor apparatus.