Alumina Ceramic substrate：
Alumina ceramic is formed by high temperature sintering with the ultrafine and high pure alpha alumina powder , which has excellent resistance and corrosion resistance,. We can according to customer requirements to produce different size alumina Ceramic substrates. Our products widely used in thick film circuit, thermoelectric module, the power electronic devices, CPU module etc.
The Physical properties of Alumina Ceramic substrate：
| Items | Capability |
| Colour | White with pale gray |
| Material | ≥96%Alumina |
| Density | 3.80 g/cm3 |
| Water absorption | 0.0% |
| Compressive strength | ≥294 MPa |
| Coefficient of thermal expansion | 6.8~7.8*10-6 mm/℃ |
| Thermal conductivity | ≥20 W/M.K |
| Volume resistivity | 1014 Ω.cm |
| Dielectric constant | 9.5~10.2 IMZ.25℃ |
| Dielectric loss angle tangent value | 4*10-4 IMZ.25℃ |
| Surface Roughness Ra | 0.3~0.5 μΜ |
Regular products specification sheet
| Dimensions | thickness（mm） |
| 15×15 | 0.76, 0.89 |
| 15×30 | 0.76, 0.89 |
| 20×20 | 0.76, 0.89 |
| 20×40 | 0.76, 0.89 |
| 30×30 | 0.76, 0.89 |
| 40×40 | 0.76, 0.89, 1.0 |
| 50×50 | 0.76, 0.89 |
| 55×55 | 0.76, 0.89 |
| 62×62 | 0.76, 0.89 |
More sizes of the ceramics, please contact with the sales department.
This page：http://www.suntech-ceramic.com/en/b2.aspx
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