Beryllium Oxide Substrate

Beryllium Oxide Substrate

Beryllium Oxide Substrate

  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price
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Beryllium Oxide Substrate offers excellent thermal conductivity and electrical insulation, making it ideal for high-performance electronic applications. It supports thick-film metallization through active metal methods such as Mo-Mn or W-Mn, followed by nickel plating and pattern etching to form precise circuits. This makes it widely used in microwave power circuits and integrated circuits where heat dissipation and reliability are critical. We can supply high-quality Beryllium Oxide Sustrate with various specifications and competitive prices, offering customized solutions to meet specific requirements.

Or email us at sales@heegermaterials.com.

Beryllium Oxide Substrate Data Sheet

Color:White
Chemical Formula:BeO
Dimension:customized
Machining Accuracy:0.01 mm
Surface Roughness:0.1 μm

Beryllium Oxide Substrate Description

Beryllium Oxide Substrate, also known as BeO ceramic substrate, is engineered for demanding electronic applications requiring superior heat management and strong dielectric properties. Using active metallization processes like molybdenum-manganese (Mo-Mn) or tungsten-manganese (W-Mn), a robust thick-film metal layer is applied to the surface. After nickel plating and fine-pattern etching, the resulting circuit layer achieves excellent solderability and structural integrity, with tensile strength exceeding 20 MPa. Even under reducing atmospheres at around 800 °C, the nickel layer remains stable without blistering. This makes BeO substrates a dependable platform in high-frequency, high-power electronics, especially in aerospace and telecommunication systems.

Beryllium Oxide Substrate Chemical Compositions

ElementContent (ppm)
Boron (B)2
Aluminum (Al)46
Chromium (Cr)8
Iron (Fe)32
Magnesium (Mg)1000
Manganese (Mn)2
Nickel (Ni)9
Titanium (Ti)5
Sodium (Na)173
Calcium (Ca)31
Silicon (Si)2100

Beryllium Oxide Substrate Features

  • Exceptional Thermal Conductivity: Offers outstanding heat dissipation with thermal conductivity up to 280 W/m·K, far exceeding most ceramic materials.
  • High Mechanical and Electrical Strength: Combines high dielectric strength with excellent puncture resistance, ensuring stability under demanding electrical loads.
  • Low Dielectric Constant and Loss: Maintains low dielectric constant and minimal high-frequency loss, making it ideal for RF and microwave applications.
  • Advanced Hot Pressing Process: Manufactured using precision hot-pressing technology, delivering dense, crack-free substrates with consistent quality.
  • Flexible Customization: Available in a wide range of shapes, sizes, and thicknesses to meet specific design requirements for power devices and hybrid circuits.

Beryllium Oxide Substrate Applications

  • High-Power Electronic Packaging: Used in RF power transistors, microwave devices, and laser diode modules, offering excellent thermal conductivity to ensure stable device operation.
  • Aerospace and Military Radar Systems: Ideal for high-reliability radar modules and electronic warfare systems due to its superior thermal management and electrical insulation.
  • Semiconductor Testing Equipment: Applied in high-frequency test platforms to reduce dielectric loss and improve signal accuracy.
  • Medical Imaging and Treatment Devices: Utilized in components like CT tubes and X-ray emitters where high thermal conductivity and electrical insulation are essential.
  • Optoelectronics and Communication Modules: Supports high-frequency, high-speed data transmission in optical modules by providing reliable thermal dissipation.

Beryllium Oxide Ceramic Properties

Mechanical PropertiesValue (Unit)
Density2.85 g/cm³
Hardness (Vickers)1100 – 1400 HV
Young’s Modulus300 – 345 GPa
Flexural Strength300 – 450 MPa
Fracture Toughness2.0 – 3.0 MPa·m^0.5

Thermal PropertiesValue (Unit)
Thermal Conductivity200 – 330 W/m·K
Coefficient of Thermal Expansion7.5 ×10^-6 /K
Melting Point2530 °C
Maximum Operating Temperature1000 – 1200 °C
Thermal Shock ResistanceExcellent

Electrical PropertiesValue (Unit)
Electrical Resistivity1 × 10^14 Ω·cm
Dielectric Constant (1 MHz)6.7 – 7.1
Dielectric Strength10 – 20 MV/m
Loss Tangent (1 MHz)< 0.0001
Breakdown VoltageHigh

Beryllium Oxide Ceramic Material Machining

Beryllium Oxide Ceramic Material Machining

Beryllium Oxide (BeO) Ceramic is valued for its exceptional thermal conductivity, electrical insulation, and high melting point. These qualities make it widely used in electronics and high-temperature applications, but its hardness and brittleness require special machining approaches. Key machining considerations include:

  • Cutting: Precision diamond-coated tools or laser cutting are essential to avoid microcracks and maintain clean edges, as BeO’s brittleness can lead to chipping during conventional cutting.
  • Grinding: Fine diamond grinding wheels enable accurate shaping and surface finishing while minimizing the risk of fractures, especially important for small or complex parts.
  • Drilling: Ultrasonic machining or abrasive waterjet methods are preferred to produce precise holes without causing thermal damage or cracks.
  • Surface Finishing: Polishing techniques enhance surface smoothness and electrical insulation properties, crucial for applications demanding high dielectric performance and reliability.

Beryllium Oxide Ceramic Packaging

Beryllium oxide ceramic products are typically packaged in vacuum-sealed bags to prevent moisture or contamination and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.

ceramic products packing-HM

Get A Quote

We will check and get back to you in 24 hours.

To customize your beryllium oxide substrate, please provide the following details:

  1. Dimensions: Length, Width, Thickness, etc.
  2. Hole/Slot Requirements: Specify the size and position of the holes and slots or other features.
  3. Tolerances: Specify the required tolerances.
  4. Purity of the material
  5. Temperature Requirements: Specify the maximum operating temperature.
  6. Electrical Properties: Insulation resistance, dielectric strength, etc.
  7. Application: Indicate the intended application or industry to help determine the specific type.
  8. Surface Finishes: Polished, rough, etc.
  9. Quantity of the products you need
  10. Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of beryllium oxide ceramic products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

Yes, the beryllium oxide substrate is widely used in aerospace electronics thanks to its combination of high thermal conductivity, mechanical strength, and low dielectric constant. These properties make it ideal for radar modules, avionics, and satellite systems.

Yes, the beryllium oxide substrate supports screen printing, thin-film deposition, and laser trimming. Its compatibility with standard fabrication processes makes it suitable for hybrid circuits and custom electronic packaging.


Advanced Ceramic Hub, established in 2016 in Colorado, USA, is a specialized supplier and manufacturer of beryllium oxide ceramic products. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of ceramics, refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

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