Phosphorus-Doped N-Type Silicon Wafers
Silicon wafers doped with phosphorus atoms to achieve n-type conductivity, critical for fabricating diodes, MOSFETs, and photovoltaic cells in electronics. The doping alters electrical properties for semiconductor applications. Falls under HTS 3818.00.00.95 as other doped chemical compounds for electronics.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If silicon purity exceeds doping levels for non-electronic use
High-purity silicon without specific electronic doping falls under general silicon chemicals in Chapter 28.
If further processed into photosensitive semiconductor devices
Doped wafers turned into diodes or LEDs are classified as finished semiconductor devices, not raw materials.
If considered chemical preparations rather than pure doped compounds
Mixtures or coated doped materials may shift to prepared chemical binders if not purely doped wafers.
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Import Tips & Compliance
• Include resistivity measurements and dopant profile data to substantiate electronic use and prevent misclassification
• Comply with REACH and RoHS for trace impurities; use anti-static packaging to avoid damage during customs inspection
Related Products under HTS 3818.00.00.95
Aluminum-Doped Zinc Oxide (AZO) Wafers
Transparent conductive oxide wafers doped with aluminum for cost-effective alternatives to ITO in solar cells and touch panels. Provides high transparency and low resistivity. HTS 3818.00.00.95 for doped electronic compounds.
Double-Sided Polished Doped Silicon Wafers
Precision-polished silicon wafers doped on both sides for advanced sensors and MEMS fabrication. Ensures flatness for thin-film deposition in electronics. Covered by HTS 3818.00.00.95.
Boron-Doped Silicon Wafers
Thin discs of silicon intentionally doped with boron to create p-type semiconductors for use in electronics manufacturing. These wafers serve as the foundational substrate for integrated circuits, transistors, and solar cells. Classified under HTS 3818.00.00.95 as chemical compounds doped for electronics in wafer form.
Arsenic-Doped Gallium Arsenide Wafers
Gallium arsenide substrates doped with arsenic or related impurities for high-frequency electronics like RF amplifiers and LEDs. These compound semiconductors offer superior electron mobility for optoelectronics. Covered by HTS 3818.00.00.95 for other doped chemicals in wafer form.
Antimony-Doped Silicon Wafer Substrates
Silicon discs doped with antimony for n-type semiconductors used in power electronics and sensors. Provides higher doping levels than phosphorus for specific high-current applications. HTS 3818.00.00.95 applies to these other doped electronic compounds.
Epitaxial Boron-Doped Silicon Wafers
Silicon wafers with an epitaxial layer doped with boron for advanced CMOS manufacturing and MEMS devices. The epitaxial growth ensures precise thickness control for high-performance electronics. Fits HTS 3818.00.00.95 as other doped wafers for electronics.