Description of Beryllium Oxide Ceramic Heat Sinks
The ceramic heat sinks made from beryllium oxide (BeO) transfer heat rapidly and maintain optimal performance in high-performance electronic devices. Their electrical insulation reduces the risk of current leakage. The ceramic heat sinks are light and high-strength, thereby reducing the overall weight while preserving structural integrity under demanding conditions. They operate at high temperatures and withstand thermal shocks, thereby maintaining stable performance. Owing to their low thermal expansion and chemical stability, they are applicable in rigorous environments.
Specifications for Beryllium Oxide Ceramic Heat Sinks
Test Entries |
Test Conditions |
Properties |
Flexural Strength |
/ |
≥170 MPa |
Thermal Conductivity |
25℃ |
≥250 W/m-k |
100℃ |
≥190 W/m-k |
Dielectric Constant |
1MHz 20℃ |
6.5–7.5 |
10GHz 20℃ |
6.5–7.5 |
Volume Resistivity |
25℃ |
≥10^14 Ω-cm |
300℃ |
≥10^11 Ω-cm
|
Applications of Beryllium Oxide Ceramic Heat Sinks
Beryllium oxide ceramic is a material used for high-performance semiconductor components in devices such as radios. Beryllium oxide ceramic heat sinks provide electrical isolation while transferring significant amounts of heat to an attached chassis heat sink. Beryllium oxide ceramic is incorporated as a filler in certain thermal interface materials, such as thermal paste. In some power semiconductor assemblies, beryllium oxide ceramic is positioned between the silicon chip and the metal enclosure to achieve a lower thermal resistance than a configuration using aluminium oxide. It is also employed as a structural ceramic in microwave equipment, vacuum tubes, magnetrons and gas lasers.
Packaging of Beryllium Oxide Ceramic Heat Sinks
We handle our beryllium oxide ceramic heat sinks in a manner that prevents damage during storage and transport, thereby preserving the product quality in its original state.
FAQs on Beryllium Oxide Ceramic Heat Sinks
- Does beryllium oxide conduct electricity?
Beryllium oxide exhibits a high thermal conductivity and provides electrical insulation. The beryllium-copper alloy used in related applications meets the strength requirements and presents a balanced profile of thermal and electrical conductivity.
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