Main characteristics of alumina ceramic substrate
1. Good thermal shock resistance, greater than 220 T(ºC)
2. High thermal conductivity of high purity alumina, up to 30 W/m.k at 25ºC
3. Good surface roughness, flatness to be 0.05mm with min. warpage, deformation
4. High dielectric strength, low dielectric constant, and dielectric loss.
5. Laser cutting or precision machining cutting makes tight tolerance.
The specification of ceramic substrate
1. Materials: 96% alumina, 99% alumina, 99.5% alumina,99.6% alumina, zirconia, silicon nitride, silicon carbide optional
2. Dimensional capability: the side length to be 500mm x 600mm, the thickness can be 0.15mm to 30mm
3. Surface treatment: lapping, fine ground, diamond-like polished to be Ra0.05, metallization, glazed
The description of alumina ceramic sheets
We have been making alumina (Aluminum oxide, Al2O3) ceramic sheets for over 12 years under rigorous quality control with carefully selected high purity ceramic materials ranging from 95% to 99.8%.
All these alumina substrate offer extraordinary properties of electrical insulation, thermal conductivity, breaking strength, and high-temperature resistance. Furthermore, one of the unique properties is its superb surface roughness to be Ra0.2 which results in excellent adhesion strength with a thin film and thick film metallization due to fine particles. Also, it can play a critical role in the sintering process which works as an alumina ceramic setter.
The regular forming methods we use include tape-casting, isostatic pressing, dry pressing. We are dealing with a variety of selection of thicknesses from small-size to large-size capability. With our comprehensive types of manufacturing types of equipment, we have the capability from prototyping to mass production in the short term.
date sheet
| Name | Ceramic Substrate |
| Color | White(general) |
| Specifications | Customized |
| Accuracy | ±0.01 |
| Density | w |
| Hardness | Rockwell hardness HRA89 (steel knife hardness HRC60) Mohs hardness is 9; HV1500-1700 |
| Modulus of elasticity | 380GPa |
| Bending strength | 300Mpa |
| Compressive strength | 2500MPa |
| Melting point | 2050 ° C |
| High temperature resistance | 1800 ° C |
| Thermal conductivity | 39W/(m.K) |
| Thermal expansion coefficient | 8.6X10-6/°C |
| Breakdown strength (insulation strength) | 15KV/mm |
| Resistivity | 1015/Ω.m |
company information
Wuxi Special Ceramic Co.,Ltd mainly produces alumina, Silicon nitride, Zirconia, Steatite, Boron nitride, Cordierite,mullite products, widely used in metal welding, electronic conductor, mechanics, assembling, insulation, chemicals, instrument, textile, nuclear industry, aerial field.We accept trial produce according to the drawing or sample.It usually takes 30 days to finish trial product.Mass produce usually takes 30 days.Goods' package is carton or PLT.It can be negotiable with each other.
We mainly sell goods to toshiba lighting group in Japan and Europe.Our aim is to deliver goods with high quality at quick delivery date.
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High Purity 99.6% Al2O3 Alumina Ceramic Substrate 0.30mm 0.50mm Thick Images
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