Bare Beryllium Oxide(BeO) Ceramic Substrates

Beryllium Oxide (BeO), also known as Beryllia, is a high-performance fine ceramic material known for its exceptional thermal and electrical properties. Fabricated using BeO powders, these ceramics stand out for their unique combination of thermal conductivity, electrical resistance, mechanical strength, and chemical inertia.

Specifications:

Parameters/Models		BEO99	BEO99.5
Volume Density		≥2.85g/cm3	≥2.88g/cm3
Flexural Strength		≥200Mpa	≥200Mpa
Average Coefficient of Expansion (at 25-500°C)		7.0-8.0×10-6/K	7.0-8.0×10-6/K
Thermal Conductivity	at 25°C	≥260W/m.K	≥285W/m.K
	at 100°C	≥190W/m.K	200W/m.K
Dielectric Constants	at 1MHz	6.7±0.2
	at 10GHz	6.9±0.2	6.8±0.2
Dielectric Loss Tangent	at 1MHz	≤4×10-4	≤4×10-4
	at 10±0.5GHz	≤6×10-4	≤4×10-4
Volume Resistivity		≥1014 Ω.cm (at 20 °C)	≥1014 Ω.cm (at 100 °C)
Puncture Strength		≥30kV/mm	≥40kV/mm
Thermal Shock Resistance		Excellent	Excellent
Chemical Stability	1:9 HCL	≤0.1mg/cm2	≤0.1mg/cm2
	10% NaOH	≤0.1mg/cm2	≤0.1mg/cm2
Air Tightness		≤5×10-12Pa.m3/s	≤5×10-12Pa.m3/s
Average Grain Size		10-20μm	10-20μm

 

Key Characteristics:

1.Unmatched Thermal Conductivity:

• BeO ceramics exhibit thermal conductance close to that of silver and red copper, far surpassing alumina substrates.
• Maximum thermal conductivity can reach up to 280 W/m.K, making it ideal for high-power applications.

2.High Electrical Resistance: Offers substantial electrical resistance, essential for reliable electronic applications.

3.Puncture Strength and Low Loss at High Frequencies: Excellent puncture strength and low dielectric loss, beneficial for high-frequency applications.

4.Mechanical Strength and Thermal Shock Resistance: Robust mechanical strength paired with exceptional thermal shock resistance ensures durability in demanding environments.

5.Chemical Inertia: Resistant to chemical attacks, enhancing its longevity and performance in various applications.

Applications:

Kingwin Optics provides Bare Beryllium Oxide Ceramic Substrates suitable for a wide range of applications due to their superior thermal and electrical properties. These substrates are available in various custom shapes and specifications, including special structures such as holes.

• High-Power, Large-Scale Integrated Circuits (ICs)
• Electrical Packages
• Thermoelectric Coolers (TEC)
• Hybrid Integrated Circuits (HIC)
• Printed Circuit Boards (PCBs)
• Aerospace and Telecommunications
• Satellite Components

Manufacturing Process:

The substrates are manufactured using hot-press techniques, ensuring quick turnaround times and competitive pricing. Kingwin Optics guarantees high purity BeO ceramics, making them suitable for further processing and thick film treatments to produce advanced PCB substrates.

Metalized Versions:

In addition to bare substrates, Kingwin Optics also offers metalized BeO ceramic substrates. These versions are tailored for applications requiring additional metallization for enhanced performance and connectivity.

For custom shapes, specifications, and more information on BeO ceramic substrates, reach out to Kingwin Optics. Our expertise and advanced manufacturing techniques ensure high-quality, reliable solutions for your high-performance ceramic needs.