product information:
Product Description:
This high-purity electronic-grade spherical alumina powder is specially designed for high-frequency circuit substrates (e.g., 5G communications, millimeter-wave radar, RF devices). It features low dielectric loss, high thermal conductivity, and excellent high-frequency stability. Produced via high-precision spheroidization technology, it exhibits uniform particle morphology and tightly controlled size distribution, significantly enhancing signal transmission efficiency and thermal management in high-frequency substrates.
Product Parameters
| Item |
Technical Indicators |
| Chemical Formula |
α-Al2O3 (≥99.5%) |
| Particle Size Range |
D50 2-50μm (customizable) |
| Sphericity |
≥95% |
| Thermal Conductivity |
30-35 W/(m·K) |
| Dielectric Constant |
9-10 (1MHz) |
| Purity |
≥99.5% |
| Moisture Content |
≤0.5% |
Key Advantages
High-Frequency Compatibility
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Ultra-low dielectric loss (tanδ ≤ 0.0005), minimizing signal attenuation
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Stable dielectric properties (ε < 9.8 @ 10GHz), ensuring signal integrity
Superior Thermal Performance
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Thermal conductivity ≥30 W/(m·K), effectively reducing heat buildup
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High packing density design improves substrate heat dissipation
Precision Manufacturing
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Sphericity ≥ 95%, reducing porosity and optimizing flow properties
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Adjustable particle size (2-50μm) for diverse substrate processing needs
Rigorous Quality Standards
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Purity ≥ 99.5%, heavy metal content ≤10ppm
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Compliant with ROHS & ISO 9001, meeting electronic-grade material requirements
Typical Applications
5G Communications
Automotive Electronics
Premium Consumer Electronics
Aerospace
Why Choose Us?
Custom Solutions: Tailored particle sizes & surface treatments (e.g., silane coupling)
Technical Support: Formula optimization for high-frequency substrates
Stable Supply: 200-ton monthly capacity with batch-to-batch consistency
Packaging & Shipping
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Standard: 25kg/bag (customizable)
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Shipping: Moisture-proof & shock-resistant packaging, global logistics support
Inquiry Tip: Contact us for free samples or Technical Data Sheet (TDS)!
Company Information:
Jiangsu Shengtian New Materials Co., Ltd. has a technical research and development team focusing on ultra-fine powder materials, and has strong strength in the research and development and production of ultra-fine functional materials, composite materials and related applications, and has become a more influential high-tech enterprise in the ultra-fine functional powder industry.
The company's products include crystalline silicon powder, molten silicon powder, soft composite silicon powder, spherical silicon powder, aluminum oxide powder, ceramic powder, glass powder and other ten categories, nearly 100 kinds of different specifications of products, and has a strong modification, compounding and other follow-up deep processing technology and capabilities. The products are processed by special technology, the production technology is leading and innovative, and the introduction of international technical standards for similar products, widely used in electronic packaging, copper clad plate, ink coating, adhesive, ceramics, precision casting, glass fiber, plastic rubber and other industries, giving its functionality while helping customers reduce costs. And provide the overall application of technology solutions.
The company has more than 20 different types of production lines, more than 100 sets of domestic advanced equipment, with an annual output of 50,000 tons. The company adopts professional production and testing equipment and formulates strict production quality control system to conduct all-round control of product quality. All products of the company have passed SGS environmental protection testing, in line with the EU ROHS green environmental protection standards. The company took the lead in the silicon powder industry through the ISO9001 quality management system certification and ISO14001 environmental management system certification, has passed the high-tech product identification. The company's products and solutions have been applied to more than 160 enterprises around the world, including more than 80 customers with stable cooperation for more than 10 years.
Workshop:
An excellent manufacturing enterprise
The company has 20 patents, the company has passed ISO9001 and ISO14001 certification, and has been recognized as a national high-tech enterprise
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