Czochralski Crystal Puller Vacuum Pump
This vacuum pump is a critical part of Czochralski crystal growers used to produce monocrystalline silicon boules for semiconductor wafers. It maintains the ultra-high vacuum environment necessary during the crystal pulling process to ensure purity and quality. Classified under HTS 8414.90.91 as a part of vacuum pumps specialized for semiconductor manufacturing equipment.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not exclusively for semiconductor crystal growth
General vacuum pumps not specialized for semiconductor boule production fall under broader air/vacuum pump parts.
If classified as semiconductor equipment part rather than pump part
Some semiconductor processing machinery parts are directed to Chapter 8481 by statistical notes.
If for testing/inspection functions in semiconductor equipment
Parts of testing apparatus for semiconductor devices shift to Chapter 90 per statistical notes.
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Import Tips & Compliance
• Provide detailed technical specifications and end-use statements proving semiconductor manufacturing application to qualify for duty-free treatment under Note 3
• Ensure HS classification documentation references statistical note (a)(i) for crystal growers to avoid misclassification as general vacuum pumps
Related Products under HTS 8414.90.91
Plasma Etch Vacuum Pump for Wafer Processing
High-vacuum pump part for plasma etching equipment in semiconductor wafer fabrication, supporting the processing of semiconductor materials into devices. Essential for maintaining process vacuum during reactive ion etching of wafer patterns. HTS 8414.90.91 covers such parts used in semiconductor device processing.
Silicon Crystal Ingot Vacuum Pump
Pump part for equipment processing silicon crystal ingots into semiconductor wafers, specifically for vacuum during boule handling. Supports the growth and initial processing sequence described in statistical note (a). HTS 8414.90.91 for such semiconductor-specific vacuum pump parts.
Float Zone Crystal Grower Vacuum Chamber Pump
Specialized vacuum pump component for float zone crystal growers that produce high-purity silicon crystals by float zone methods for wafer production. It handles the vacuum requirements for zone refining processes in semiconductor manufacturing. Falls under HTS 8414.90.91 as parts of vacuum pumps for semiconductor crystal growth equipment.
Semiconductor Wafer Slicing Saw Vacuum Pump
Vacuum pump part for wafer slicing saws that cut monocrystalline boules into semiconductor wafers, as described in statistical note (a)(ii)(B). It provides coolant mist evacuation and chip removal under vacuum during precision diamond saw operations. HTS 8414.90.91 covers such specialized pump parts for semiconductor wafer preparation.
Crystal Boule Grinder Vacuum Extraction Pump
This pump is a part of crystal grinders that shape semiconductor boules to precise diameters and grind orientation flats, per statistical note (a)(ii)(A). It extracts grinding dust and maintains cleanroom vacuum conditions during boule preparation for wafer slicing. Classified as other vacuum pump parts under HTS 8414.90.91 for semiconductor equipment.
Wafer Lapping Machine Vacuum Hold-Down Pump
Vacuum pump component for wafer lappers that flatten semiconductor wafers to precise tolerances during preparation, statistical note (a)(ii)(C). Provides hold-down vacuum to secure wafers during double-sided lapping operations. HTS 8414.90.91 for parts of such semiconductor wafer processing vacuum systems.