product information:
Product Description
This product is high-purity electronic-grade spherical aluminum oxide powder (Al2O3), prepared by an advanced high-temperature melting spray method. It features excellent sphericity, high purity, and a narrow particle size distribution (D50 adjustable from 0.5 to 50μm). The product exhibits superior thermal conductivity, insulation, and chemical stability, making it widely used in high-end electronic packaging, semiconductors, 5G communications, and thermal interface materials.
Basic Parameters
| Item |
Unit |
Typical Values |
| Exterior |
/ |
white powder |
| Density |
kg/m³ |
3.7 ×103 |
| Moh's hardness |
/ |
6-9 |
| Coefficient of linear expansion |
1/k |
0.7×10-6 |
| Pyroconductivity |
w/k.m |
30 |
| Refraction coefficient |
/ |
/ |
1, content: Silica content 99%-99.9%
2,grain fineness distribution: D50(0.5μm-50μm) customization
Application Fields
Semiconductor Packaging: Used for chip packaging and IC substrates to enhance heat dissipation performance.
Thermal Interface Materials: A key filler for thermal silicone rubber and thermal pads.
5G Communication Materials: Insulating and thermal conductive layers for high-frequency substrates and RF devices.
LED Packaging: Improves the heat dissipation efficiency and reliability of LED devices.
Precision Electronic Ceramics: Multilayer Ceramic Capacitors (MLCC) and electronic substrates.
Product Advantages
High purity and low metal impurities, meeting stringent requirements.
Perfect sphericity (≥95%): Good fluidity, high filling rate, and reduced internal stress in materials.
Excellent thermal conductivity (30-35 W/m·K): Significantly enhances heat dissipation performance of electronic devices.
Narrow particle size distribution: Customizable from 0.5 to 50μm to adapt to different application needs.
High insulation: Stable dielectric constant, suitable for high-frequency electronic components.
Packaging and Storage
- Packaging: Customized according to customer requirements.
- Storage: Store in a sealed container in a dry, cool place to avoid moisture.
Why Choose Us?
Strict quality control: Compliant with ISO 9001 & ROHS standards.
Customized services: Surface modification and special particle size customization available.
Stable supply: Monthly production capacity of 50 tons, supporting large-scale orders.
Technical support: Professional application solutions and after-sales support provided.
Applicable Industry Standards
- Electronic Packaging: JIS K1469
- Thermal Materials: ASTM D5470
Contact Us: Get free samples and technical consultation!
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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