product information:
Product Description:
Our electronic-grade spherical alumina powder is manufactured using advanced high-temperature melting technology, featuring:
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High sphericity (≥95%)
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Exceptional purity (≥99.5%)
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Ultra-low sodium content (≤50ppm)
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Outstanding thermal conductivity (25-30 W/m·K)
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Excellent electrical insulation (Volume resistivity ≥1014 Ω·cm)
Ideal for demanding applications requiring superior thermal management in advanced electronics.
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% |
Applications
5G Communications: Heat dissipation filler for high-frequency substrates & RF devices
Power Electronics: Thermal interface material for IGBT/MOSFET modules
LED Packaging: Enhances chip heat dissipation and lifespan
New Energy Vehicles: Insulating thermal layer for BMS
High-end CCL: Improves thermal conductivity while reducing CTE
Competitive Advantages
Superior Thermal Conductivity: Single-crystal α-phase structure outperforms angular alumina
Perfect Insulation: Volume resistivity >1014 Ω·cm ensures circuit safety
Low Ionic Impurities: Na+/K+ <100ppm meets semiconductor requirements
High Packing Density: Spherical morphology enables >80% filling ratio
Customizable Sizing: 2-50μm particle size tailoring for different systems
Packaging & Storage
Why Choose Us?
Electronic-Grade Purity - ICP test reports provided
Industry-Leading Sphericity - Verified by laser particle analyzer & SEM
Technical Support - Formula optimization assistance
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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