Float Zone Crystal Furnace RF Coil
A float zone crystal furnace RF coil is a radio frequency induction coil used in float zone crystal growth furnaces to melt and purify semiconductor material without crucibles. It enables precise heating and zone refining, essential for producing high-purity silicon. This coil is equally suitable for use with machines of headings 84.70 to 84.72, as it supports semiconductor material preparation for ADP systems.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the coil is part of an electric induction furnace
Parts of electric furnaces are classified under heading 85.14 when not identifiable as machine parts.
If the coil is solely or principally used in machines for manufacturing semiconductors
Parts of machines for the manufacture of semiconductor devices are classified under heading 84.86.
If the coil is presented as an inductor for electrical circuits
Inductors are classified under heading 85.04 when not identifiable as machine parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify this RF coil as a part of semiconductor processing equipment, not as an electrical component of Chapter 85
• Provide evidence of its principal use in float zone furnaces
• Verify if the coil is eligible for duty-free import under the Customs Tariff's provisions for semiconductor manufacturing equipment
Related Products under Tariff item 8473.50.90
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A boule flattening grinder wheel is a diamond-impregnated wheel used to grind flats on semiconductor crystal boules, indicating resistivity and conductivity type. It is designed for use with crystal preparation equipment that processes semiconductor materials for later fabrication. This wheel is equally suitable for use with machines of headings 84.70 to 84.72, as it supports the preparation of components for ADP systems.
Crystal Boule Grinder Spindle Assembly
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Crystal Growth Crucible Holder
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Czochralski Crystal Puller Mechanism
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