Laser Scribing 0.635mm High Thermal Conductivity AlN Bare Ceramic Substrate
Introduction of Aluminum Nitride Ceramic Substrates
Aluminum nitride (AlN) is a ceramic material commonly used in bare ceramic substrates. It has two very important characteristics: high thermal conductivity, and the expansion coefficient (CTE) matching Si.
1. Aluminum nitride is currently the best thermally conductive material and is used in a variety of applications where heat needs to be transferred away from the component.
2. The low coefficient of thermal expansion makes AlN an ideal material for packages and submounts for power components such as power LEDs, high-power ICs, and high-voltage inductors.
Comparison of Some Parameters Between Al2O3 and AlN
| Al2O3 |
Properties VS |
AlN |
| white dense |
Appearance |
gray dense |
| 0.15-0.3 |
Surface Roughness (Ra, μm) |
0.2-0.7 |
| >24 |
Thermal Conductivity (20ºC, W/m·K) |
≥170 |
| 7.8 |
CTE (1×10-6/ºC) |
4-6 |
| 9.5 |
Dielectric constant (E) |
9 |
| ≥17 |
Dielectric Strength (KV/mm) |
≥15 |
Our Manufacturing Capacity
1. We can produce ceramic substrates in various standard shapes, and can also provide customized shapes through secondary processing such as laser scribing, laser cutting, and precision machining.
2. Standard thicknesses include 0.1-0.2mm, 0.2mm, 0.38mm, 0.50mm, 0.635mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm and 3.0mm. Other thicknesses can also be customized if required.
Other Bare Ceramic Substrates in Different Materials
Why Choose Us?
Jinghui Industry Ltd. is committed to providing the service and quality that customers have come to expect.
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