Semiconductor-Grade Fused Quartz Blank
>- Large blanks of semiconductor-grade fused quartz in mass form for wafer carriers and diffusion tubes. This is glass in the mass of fused silica before any machining.
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 blanks are drawn into tubes
Tubes of fused quartz are classified under heading 70.02.
If the blanks are machined into semiconductor equipment parts
Parts of semiconductor manufacturing equipment fall under heading 84.86.
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
• >- Ensure the blanks are unworked; any cutting or drilling would change the classification
• Provide a purity certificate to confirm semiconductor-grade quality
• Be aware that finished wafer carriers fall under heading 84.86 or 70.20 depending on the article
Related Products under Tariff item 7001.00.00
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>- Lumps of melt from architectural flat glass production, unworked for remelt. These are glass in the mass, other than fused quartz, prior to sheet forming.
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>- Massive chunks of borosilicate glass, known for thermal resistance, in unworked form straight from the melting furnace. This is other glass in the mass, used as raw material for labware and cookware.
Colored Soda Glass Masses
>- Soda glass in mass with integrated colorants like cobalt for blue tint, unworked. Classified as other glass in the mass, with color from the melt rather than surface treatment.
Container Soda Glass Billets
>- Soda glass billets in mass form for remelting into bottles and jars, unworked and amorphous. This is other glass in the mass, excluding scrap or activated types.
Electric-Fused Quartz Mass
>- A bulk mass of quartz glass produced by electric arc fusion, known for low bubble content in high-end applications. This is glass in the mass of fused quartz, unworked and not yet shaped or processed into articles.
Flame-Polished Fused Silica Mass
>- Fused silica in mass form with flame-polished surfaces to minimize defects, used in fiber optic preform production. The flame polishing is a pre-annealing process, so the glass remains unworked and classifiable as glass in the mass.