Ceramic substrates and packages
Our company produces Al2O3 and AlN ceramic substrates both metal coated and non-metalized that could be applied in electronics and electric industries. Products that we currently develop and master include:
-LED packages;
-green HTCC tape (96 to 100% Al2O3);
-polished high alumina substrates (99,8% Al2O3).
Areas of application:
-LED
packages and carrier substrates;
-monolithic ICs and micro-assemblies;
-high-performance
Peltier thermoelectric modules;
-switching
multi-stripe cards for semiconductor devices;
-heat
conducting insulators, cooling systems;
-precision
resistors;
-thick film heaters.
Geometry and configuration:
-max
dimensions: 150x150 mm;
-thickness:
from 0,25 to 3,0 mm;
-shape:
customized;
-max number
of layers: up to 40 layers
Metal coatings:
Brazing capability of our substrates is provided with the following types of metal coatings: Ni.
The coatings can be applied directly on ceramics or on an intermediate metal layer. Following types of intermediate metal layer are available: Mo-Mn, W.
Alumina (Al2O3) ceramics
| Physical/mechanical parameters | |
|---|---|
| Alumina percentage, % | ≥96% |
| Color | white |
| Density, g/cm3 | ≥3,72 |
| Bending strength at 20 °C, MPa | ≥300 |
| Thermal conductivity at 20 °C, W/m ∙°K | 24,7 |
| Coefficient of thermal expansion at 25÷1000 °C, 1x10-6/°C | 8,2 |
| Electric strength, kV/mm | ≥14÷15 |
| Dielectric permittivity at 1 MHz and 25°C | 9,0 |
| Dielectric loss(tangent delta) at 1MHz and 25 °C | 0,0002 |
| Specific volume resistance at 20°C, Ohm x cm | ≥1014 |
Aluminum Nitride (AlN) ceramics
| Physical/mechanical parameters | |
|---|---|
| Aluminum Nitride (AlN) percentage, % | ≥98 |
| Color | серый |
| Density, g/cm3 | 3,30 |
| Bending strength at 20 °C, MPa | 260 |
| Thermal conductivity at 20÷100°C,W/m °K | 180-220 |
| Coefficient of thermal expansion at 25÷1000°C, 1x10-6/°C | 6,2 |
| Dielectric loss (tangent delta) at 1MHz and 25 °C | 0,0003 |
| Dielectric permittivity at 1 MHz and 25 °C | 8,7 |
| Specific volume resistance at 20°C, Ohm x cm | 1015 |
| Electric strength, kV/mm | 14÷15 |
Technologies for adding modified Al2O3 and AlN nano-powders and Al2O3 nano-fibers that we use in our company allow us to enhance thermal conductivity, electric resistivity, and mechanical characteristics.
| Product | Status | Application | |
|---|---|---|---|
 
|
Al2O3 ceramics |
Series production | Power modules (convertor equipment, power electronics) 
|
| AlN | Series production |
||
| Packages for LED | R&D, test samples | ||
  |
HTCC green tape | Pre-production, tests | LED (power saving technologies)  |
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