Fused Silica Wafer Boat Support
A fused silica holder designed to support multiple wafer boats within oxidation furnaces for semiconductor production. It provides thermal uniformity and contamination-free handling. The material's low thermal expansion coefficient qualifies it for this tariff item.
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 |
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 the support is not used in the manufacture of cut or decorated glassware and fails the expansion test
Residual classification for other glass articles.
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
• Document the coefficient of thermal expansion with a certificate of analysis
• Ensure the product is not classified as machinery parts under Chapter 84
• Provide a clear description of its use in semiconductor manufacturing
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