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 and substrates;

-green LTCC and 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: 165x165 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, Cu, Ag, Au, Pd-Ag, Pd-Au.

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
Module of elasticity at 20 °C, GPa 330
Compression strength, MPa 2100
Hardness, kg/mm2 14÷15
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
Module of elasticity at 20 °C, GPa 320
Hardness, kg/mm2 1110
Viscosity of failure, MPa m1/2 3,1
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.