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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If low doping concentration resembling pure silicon
Minimal doping may not qualify as 'doped for electronics,' reverting to Chapter 28 silicon.
If prepared as doped chemical mixtures or slurries
Doped in liquid form or with additives becomes chemical preparations, not solid wafers.
If after fabrication into monolithic integrated circuits
Doped wafers processed into ICs are classified as finished electronic circuits.
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Import Tips & Compliance
• Certify dopant uniformity via SIMS analysis; antimony requires additional hazardous material declarations
• Use vacuum-sealed shipping to maintain surface quality; document intended end-use in electronics
Related Products under HTS 3818.00.00.95
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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.
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.
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.
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.