Quartz Oxidation Boat Holder
A precision-machined fused quartz holder for semiconductor wafer boats in oxidation furnaces. It enables uniform thermal distribution and chemical purity during oxide layer formation on wafers. The glass'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 holder does not meet the low-expansion criteria
Other glass articles fall under this residual code.
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
• Provide a certificate of analysis for the coefficient of thermal expansion
• Clearly describe the semiconductor application
• Keep the product separate from any metal components for accurate classification
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