Brown Fused Alumina for Substrate Applications
High-purity alumina foundation for technical ceramics, heat-resistant substrates, and electronic base materials.
Why Use BFA for Substrates?
Brown fused alumina (BFA) provides a thermally stable and mechanically strong foundation for manufacturing electronic substrates and technical ceramics. Its high alumina content, dielectric strength, and dimensional stability make it suitable for applications such as circuit boards, heat sinks, and ceramic insulators.
- Excellent thermal conductivity and electrical insulation
- High compressive strength and wear resistance
- Low thermal expansion and high purity (Al₂O₃ ≥ 95%)
Common Applications
- Alumina ceramic substrates for LED, IC, and power modules
- High-temperature insulating plates and fixtures
- Thermal barrier layers in multilayer PCBs
Used across semiconductor, aerospace, and renewable energy industries for reliable insulation and thermal management.
Recommended Grades & Sizes
- Ceramic pressing powder: F150–F320 micro-grit
- Machinable technical substrates: 0–0.5 mm, F60–F120
- Spray coating and insulation layers: F240–F600 fine grades
Tailored sizing and spherical morphology available for sintering and pressing performance.
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