Aluminum Nitride

Aluminum Nitride Products

Aluminium Nitride products have superior thermal conductivity, high electric insulation, and coefficient of thermal expansion similar to that of silicon (Si).

  • High thermal conductivity about 7 times that of Alumina
  • Having coefficient of thermal expansion similar to that of silicon, it realizes a high reliability against installation of a large Sichip and heat cycle
  • High electric insulation, and low dielectric constant
  • Mechanical strength higher than that of Alumina
  • Superior corrosion resistance against molten metal
  • Very small content of impurities, no toxicity, high purity.

Physical properties (principal values)

Characteristic value

Unit

Sheet formed product Press molded product
Density
g/cm3
33 3.3
Thermal conductivty

W/m•k (R.T.)

170 160
Coefficient of thermal expansion x10-6/ºC (R.T.~400ºC) 4.6 4.6
Dielectric strength KV/mm (R.T.) 15 15
Volume resistivity Ω•cm (R. T.) 1014 1014
Dielectric constant 1MHz (R.T.) 9.0 9.0
Bending strength MPa (R.T.) 450 300

Board, general tolerance

Item Sheet formed product Press molded product
Dimension Max. 5"x7" Max. 2"x2"
Thickness 0.5~1.5 (as fired) 0.3~1.0 (lapped) 1~8 mm
Dimensional tolerance ±1%NLT ±0.1 mm ±1%NLT ±0.1 mm
Warp tolerance ** ≤0.003mm/mm ≤0.003mm/mm
*Thickness tolerance of both-side polished product : ±0.05 mm
** Warp of both-sided polished product: ±0.0015 mm/mm
 

Thermal Conductivity

Coefficient of thermal expansion

Characteristic value Unit Sheet formed product Press molded product
Density g/cm3 3.3 3.3
Thermal conductivity W/m•k (R.T.) 170 160
Coefficient of thermal expansion x10-6/ºC (R.T.~400ºC) 4.6 4.6
Dielectric strength
KV/mm (R.T.)
15 15
Volume resistivity Ω•cm (R. T.) 1014 1014

 

Application

  • Power transistor module board
  • High-frequency device boar
  • Radiating/insulating plate for thyristor
  • Mount board for semiconductor laser and light emission diode
  • Hybrid module, ignition module
  • IC package
  • Thermo-module board
  • Parts of semiconductor manufacturing equipment

Power Module

360-379-6707@mkt-intlEmail Us192 N. Otto Street Port Townsend, WA 98368